LIBRARY OF THE UNIVERSITY OF CALIFORNIA. GIRT OR B.OLOGY Received OCT 27 1892 ^ ccessions No.Jf& . Shelf No. . IN PRESS, AND WILL BE PUBLISHED IN NOVEMBER. BOSTON MONDA Y LECTURES: TRANSCENDENTALISM. BY JOSEPH COOK. One volume I2mo, uniform with this volume. JAMES R. OSGOOD & CO. - - - PUBLISHERS. PLATE I. (AFTER BEALE & MODE OF ORIGIN OF LIVING CENTRES IN ALREADY EXISTING BIOPLASM. Fig.l Fig. 2. ./ Minute particle of bioplasm from living pus corpuscle, showing the different forms which it assumed in the course of five seconds. X 2800. Production of formed material, layer within layer, ind it -iccumulaiion upon the 'surface of bioplasm, u in an epithelial cell. Fig. 3- New Tendon. Old Tendon. A m'.icu's corpuscle represented in the living state, magnified by the .SCO diametw, showing alterations iu form duiin$ one minute. Fig- 5. Fig. 6. Oermina! spots, with new centres (nucleoli) within them ai-i rnor^ mi uiite germinal spots in thniBftd 6.50 tiia meters' Moflt minute ovarian ova undergoing develop- ment, in th midst of a delicate tissue con- stituting the ovary and composed ot cells. Tbe ofum seems to arise by the ftrowth ot' one of these. Ma*U!3d &IO diameters . 2?0 DEVOKSHiHE ST B&.9T BOSTON MONDA Y LECTURES. BIOLOGY, WITH PRELUDES ON CURRENT EVENTS. BY JOSEPH COOK. M "Wie ausnahmslos universell die Ausdehnung, und zugleich wie vollig untergeordnet die Bedeutung der Sendung ist welche der Me- chanismus in dem Baue der Welt zu erfullen hat." HERMANN LOTZE. THREE COLORED PLATES AFTER BEALE AND FREY. JAMES R. OSGOOD AND COMPANY, (Late Ticknor & Fields, and Fields, Osgood, & Co.) 1877. BIOLOGY LIBRARY G H COPYRIGHT, 1877, BY JOSEPH COOK. Att Sights Reserved. FRANKLIN PRESS: RAND, AVERY, AND COMPANY, BOSTON. INTKODUCTION. THE object of. the Boston Monday Lectures is to present the results of the freshest German, English, and American scholar- ship on the more important and difficult topics concerning the relation of Keligion and Science. They were begun in the Meio- naon in 1875 ; and the audiences, gathered at noon on Mondays, were of such size as to need to be transferred to Park-street Church in October, 1876, and thence to Tremont Temple, which was often more than full during the winter of 1876-77. The audiences contained large numbers of ministers, teachers, and other educated men. The thirty-four lectures of the last season were stenographically reported in the Boston Daily Ad- vertiser, and most of them were republished in full in New York and London. The lectures on Biology oppose the materialistic, and not the theistic, theory of Evolution. (See p. 111.) The lectures on Transcendentalism contain a discussion of the views of Theodore Parker. The Committee having charge of the Boston Monday Lectures for the coming year consists of the following gentlemen: His Excellency A. H. RICE, Governor of Massachusetts. Hon. ALPHEUS HARDY. Hon. WILLIAM CLAFLFN, Ex- Governor of Massachusetts. Prof. E. P. GOULD, Newton The- ological Institute. Rev. J. L. WITHROW, D.D. REUBEN CROOKE, Rev. WILLIAM M. BAKER, D.D. RUSSELL STURGIS, Jr. Prof. EDWARDS A. PARK, LL.D., Andover Theological Seminary. Eight Rev. BISHOP FOSTER. Prof. L. T. TOWNSEND, Boston University. ROBERT GILCHRIST. SAMUEL JOHNSON. Rev. Z. GRAY, D.D., Episcopal Theological School, Cambridge. WILLIAM B. MERRILL. M. R. DEMING, Secretary. E. M. MCPHERSON. HENKT F. DURANT, Chairman. BOSTON, September, 1877. PUBLISHEBS' NOTE. Is the careful reports of Mr. Cook's Lectures printed in the Boston Daily Advertiser, were included by the stenographer sundry expressions (applause, &c.) indicat- ing the immediate and varying impressions with which the Lectures were received. Though these reports have been thoroughly revised by the author, the publishers have thought it advisable to retain these expressions. Mr. Cook's audiences included, in large numbers, representa- tives of the broadest scholarship, the profoundest philoso- phy, the acutest scientific research, and generally of the finest intellectual culture, of Boston and New England ; and it has seemed admissible to allow the larger assembly to which these Lectures are now addressed to know how they were received by such audiences as those to vhich they were originally delivered. CONTENTS. LECTURES. L HUXLEY AXD TYXDALL ox EVOLUTION .... 1 IL THE CONCESSIONS OF EVOLUTIONISTS 35 m. THE COXCESSIOXS OF EVOLUTIONISTS 51 IV. THE iliCBOscopE AXD MATEBIALISM 73 V. LOTZE, BEALE. AXD HUXLEY ox LIVING TISSUES 95 VL LIFE OB MECHAXISM WHICH? 121 VIL DOES DEATH END ALL? IXVOLUTIOX AND EVO- LUTION 137 VLLL DOES DEATH EXD ALL? THE XEBYES AND THE SOUL 161 IX. DOES DEATH EXD AT.T. ? Is Ixsnxcr IMMORTAL ? 191 X. DOES DEATH EXD ATT. ? BAIX'S MATEKIALISM . 217 XL AUTOMATIC AXD IXFLUEXTIAL XEBVES .... 245 XTT. EMEBSOX'S VIEWS ox IMMOBTALITY 273 XTTT. ULKICI ox THE SPLBTTUAL BODY 299 PRELUDES. PACK L GlFT-EXTERPBISES IX POLITICS . 95 IL SAFE POPULAB FBEEDOM 161 EEL DAXIEL WEBSTEB'S DEATH 191 IV. CTVIL-SEBVICE REFOBM 217 V. AUTHOBITIES ox BIOLOGY 245 VL BOSTOX AXD EDEXBUBGH 273 VIL THE GULF CUBBEXT ix HISTOBY i\>3 LIST OF ILLUSTKATIONS, PLATE I. ORIGIN OF LIVING CENTRES IN ALREADY EXISTING BIOPLASM Frontispiece PAGE II. GROWTH AND MOVEMENTS OF BIOPLASTS 121 III. DISTRIBUTION OF ULTIMATE NERVE FIBRES TO MUS- CLE . 245 I. HUXLEY AND TYNDALL ON EVOLUTION. THE FORTY-SIXTH LECTURE IN THE BOSTON MONDAY LEC- TURESHIP, DELIVERED IN THE MEIONAON OCT. 2, 1876. "NONE of the processes of Nature, since the time when Nature began, have produced the slightest difference in the properties of any molecule. We are, therefore, unable to ascribe either the ex- istence of the molecules, or the identity of their properties, to the operation of any of the causes which we call natural. The quality of each molecule gives it the essential character of a manufactured article, and precludes the idea of its being eternal and self-existent." PROFESSOR CLERK MAXWELL, "Lecture delivered before the British Association at Bradford," in Nature, vol. viii. p. 441. " THERE is a wider teleology which is not touched by the doctrine of evolution, but is actually based upon the fundamental proposi- tion of evolution. The teleological and the mechanical views of Nature are not necessarily mutually exclusive. The teleologist can always defy the evolutionist to disprove that the primordial molec- ular arrangement was not intended to evolve the phenomena of the universe." PROFESSOR T. H. HUXLEY in The Academy for Octo- ber, 1869, No. 1, p. 13. BIOLOGY. i. HUXLEY AND TYNDALL ON EVOLUTION. IN 1868 Professor Huxley, in an elaborate paper in the Microscopical Journal, announced his belief that the gelatinous substance found in the ooze of the beds of the deep seas is a sheet of living matter extending around the globe. The stickiness of the deep-sea mud, he maintained, is due to innumera- ble lumps of a transparent, jelly-like substance, each lump consisting of granules, coccoliths, and foreign bodies, embedded in a transparent, colorless, and structureless matrix. It was his serious claim that these granule-heaps, and the transparent gelati- nous matter in which they are embedded, represent masses of protoplasm. 1. To this amazingly strategic and haughtily trumpeted substance found at the lowest bottoms of the oceans Huxley gave the scientific name Bathybius, from two Greek words meaning deep I 2 BIOLOGY. and sea, and assumed that it was in the past, and would be in the future, the progenitor of all the life on the planet. " Bathybius," was his language, 44 is a vast sheet of living matter enveloping the whole earth beneath the seas." 2. No less a man than David Friedrich Strauss, who, in 1872, wrote " The Old Faith and New," his last work, used Bathybius as a presumably trium- phant keystone of the physiological portion of his argument against the belief in the supernatural (The Old Faith and New, sect. 48). This deep-sea ooze he made the bridge between the inorganic and the organic, "At least two .. miracles or revelations," wrote Jean Paul Richter, face to face with the French Revolution, " remain for you uncontested in this age, which deadens sound with unreverberating materials. They resemble an Old and a New Testa- ment, and are these, the birth of finite being and the birth of life within the hard wood of matter. In one inexplicable every other is involved, and one miracle annihilates a whole philosophy " (Levana, sect. 38). It is very noteworthy, that, according to Strauss's own final admission in 1872, miracle must be confessed to have occurred once at least at the introduction of life, unless some method of filling up the chasm between the dead and the living forms of matter can be found. Bathybius was to occupy this gap. " Huxley," wrote Strauss, " has discovered the Bathybius, a shining heap of jelly on the sea- bottom ; Hackel, what he has called the Moneres, structureless clots of an albuminous carbon, which, HUXLEY AND TYNDALJL ON EVOLUTION. 3 although inorganic in their constitution, yet are all capable of nutrition and accretion. By these the chasm may be said to be bridged, and the transition effected from the inorganic to the organic. As long as the contrast between inorganic and organic, lifeless and living nature, was understood as an absolute one, as long as the conception of a special vital force was retained, there was no possibility of spanning the chasm without the aid of a miracle " (The Old Faith and New, sect. 48). As devout believers in Bathybius, educated men Strauss affirmed' in the name of what he mistook for German culture could no longer be Christians. Bathybius had expelled mira- cle. Thus in 1868 and 1873 Bathybius was the watchword of the acutest anti-supernaturalistic dis- cussions, and was adopted as a victorious weapon by Strauss, when, with his dying-hand, he was using his last opportunity to equip his philosophy with armor. Men have trembled before Strauss's negation of the supernatural. Bathybius was his chief support of that denial. Huxley called his discovery Bathylius Hackelii. Ernst Hackel, well knowing what stupen- dous issues were at stake, elaborately applauded the discovery. 3. Great microscopists and physiologists, like Pro- fessor Lionel Beale and Dr. Carpenter, rejected Hux- ley's testimony on this matter of fact. Dr. Wallich, in 1869, in the Monthly Microscopical Journal, pre- sented evidence that the deep-sea ooze has nothing in it to connrm Huxley's views. The ship Challen- ger, engaged now in deep-sea soundings, has accu- 4 BIOLOGY. mulated evidence of the same sort ; and at present Bathybius is a scientific myth and a by-word of deris- ion. " Bathybius," says Professor Lionel Beale in his work on " Protoplasm " (London, 1874, pp. 110, 368, 371), which the North British Review well calls one of the most remarkable books of the age, " instead of being a widely-extending sheet of living protoplasm, which grows at the expense of inorganic elements, is rather to be regarded as a complex mass of slime, with many foreign bodies and the debris of living organisms which have passed away. Numer- ous minute living forms are, however, still found upon it." At the meeting of the German Natural- ists' Association at Hamburg, in September, 1876, Bathybius was publicly interred. It was my fortune to converse for a while, lately, with Professor Dana of Yale College, when I put to him the question, " Does Bathybius bear the microscope ? " He re- plied, " You know, that, in a late number of 4 The American Journal of Science and Arts,' Huxley has withdrawn his adhesion to his theory about Bathy- bius." Thus the ship Challenger has challenged the assertion with which Strauss challenged the world ; and Huxley himself has left Bathybius to take its place with other ghosts of not blessed memory in the history of hasty speculation. 4. Nevertheless, in his New- York definition of the doctrine of evolution, Professor , Huxley speaks of a " gelatinous mass, which, so far as our present knowl- edge goes, is the common foundation of all life." As, by his own confession, no such gelatinous mass HUXLEY AND TYNDALL ON EVOLUTION. 5 has ever been observed, his popular assertion thi.t our " knowledge " goes " so far " as to establish that this gelatinous mass not only exists, but is the foundation of all life, is contradictory of his published retraction of his theory before scholars. The observed Bathy- bius having turned out to be a myth, its place is now occupied by an inferential Bathybius. The chasm be- tween the inorganic and the organic was not bridged by the results of actual observation ; but it must yet be bridged, even if only with a guess and a recanted theory. This substitution of the inferential for the observed is unscientific. A primary fault of Professor Huxley's latest definition of the basis of evolution is self-contradiction. Huxley persists in his forced recantation in spite of all the alleged discoveries in the Bay of Biscay and the Adriatic. But the gelatinous mass, which, ac- cording to Huxley's New-York Lectures, is the com- mon foundation of all life, he defined. His words permit no doubt that he meant Bathybius and its associated forms of life, as Hackel does in similar language, and not protoplasm in the minute forms in which it exists in the living tissues of to-day. Huxley affirmed in New York, that, " if we traced back the animal and vegetable world, we should find, preceding what now exists, animals and plants not identical with them, but like them, only increasing their differences as we go back in time, and at the same time becoming simpler and simpler, until finally we should arrive at the gelatinous mass, which, so far as our present knowledge goes, is the common foun- 6 BIOLOGY. datioii of all life. The tendency of science is to jus- tify the speculation that that also could be traced farther back, perhaps to the general nebulous con- dition of matter" {Tribune Pamphlet Report, p. 16). Very plainly, by this gelatinous mass, at which we should " arrive " by a process of investigation carried backward to the first living organisms and to the nebulous condition of matter, Huxley does not mean protoplasm in minute forms in the veins of the nettle, and in the other living tissues of to-day, and in them constituting what his famous lecture of a few years ago called "the physical basis of life." But he af- firmed that our " knowledge," and not merely our theory, goes " so far " as to show that Ms gelatinous mass is " the foundation of all life." In view of his recantation as to this sheet of living matter beneath the seas, this assertion is self -contra- dictory. Since no such gelatinous mass has ever been seen, the substitution of an inferential for an observed sheet of living slime enveloping the world is unscientific. With the argument of Huxley, that of Strauss takes its place among exploded and ludi- crous errors. 5. It follows, also, from the facts now stated, that Professor Huxley^ s New-York Lectures are defective in omitting the most essential part of their subject ; that is, in failing to explain how evolution bridges the chasm between the inorganic and the organic, or the lifeless and the living forms of matter. 6. There have been and are at least three schools of evolutionists, those who deny the Divine exist- HUXLEY AND TYNDALL ON EVOLUTION. 7 euce, those who ignore it, and those who affirm it ; or the atheistic, the agnostic, and the theistic. Carl Vogt, Buchner, and Moleschott belong to the athe- istic school of evolutionists ; Huxley and Tyndall and Spencer, to the agnostic ; Dana, Gray, Owen, Dawson, Carpenter, Sir J. Herschell, Sir W. Thomson, and, in the judgment of Professor Gray, Darwin himself, to the theistic. 7. Of the theistic form of the doctrine of evolu- tion, there are theoretically three varieties : (1) That which limits the supernatural action in the origina- tion of species to the creation of a few primordial cells ; (2) That which makes Divine action in the origination of species chiefly indirect, or through the agency of natural causes, and yet sometimes direct, or through special creation ; (3) That which makes God immanent in all natural law, and regards every result of cosmic forces as the outcome of present Divine action. 8. In the history of the discussion of evolution, the origin of species among plants and animals has been explained by at least seven distinct hypotheses : (1.) Self-elevation by appetency, or use and effort. That is the -theory of Monboddo, Lamarck, and Cope. (2.) Modification by the surrounding condition of the medium. That is Geoffrey St. Hillaire, Quatre- fages, Draper, and Spencer. (3.) Natural selection under the struggle for existence, with spontaneous variability, causing the survival of the fittest. That is Darwin and Ha'ckel. 8 BIOLOGY. (4.) Derivation by pre-ordained succession of or- ganic forms under an innate tendency or internal force. That is Owen and Mivart. (5.) Evolution by unconscious intelligence. That is Morell, Laycock, and Murphy. (6.) Immanent action and direction of Divine power, working by the purposive collocation and adjustment of natural forces, acting without breaks; or the theory of creative evolution. That is Asa Gray, Baden Powell, and the Duke of Argyll. (7.) The same immanent Divine power collocating and adjusting natural forces, but with breaks of special intervention, and this notably in the case of man. That is Dana, and Darwin's great co-discov- erer of evolution, Alfred Wallace. (See arts, on " Evolution," by Professor Youmans and President Seelye, in JOHNSON'S Cydopcedia and JOHNSON'S Natural History.) What Huxley calls the Miltonic theory of crea- tion, he did well not to call the biblical; for it is generally admitted by specialists in exegetical science, that the writings of Moses neither fix the date, nor definitely describe the mode, of creation. Professor Dana, in the closing chapter of his cele- brated " Geology," exhibits the first chapterof Genesis as thoroughly harmonious with geology, and as both true and divine. Many theologians combine their distinctive positions with some theistic view of evo- lution, especially with that held by Professor Dana. Owenism seems at least as sure of a future as un- modified Darwinism. Dana and Hackel represent HUXLEY AND TYNDALL ON EVOLUTION. 9 respectively, I should say, the use and the abuse of the theory of evolution. 9. It is thus evident, from the history of recent speculation alone, that there are, or well may be, at least thirty different views as to the past history of nature ; but Professor Huxley affirms, that, so far as he knows, " there have been, and well can be, only three." That nature has existed from eternity, and that it arose, according to the Miltonic hypothesis, in six natural days, and that it originated by evolution, of which latter he gives a definition, these are his three theories ; and they are a curiously incomplete statement of facts in the case. It does not follow, that, if the first two be overthrown, only the theory represented by his definition is left to be chosen ; but this is the implicit and explicit assumption of the New- York Lectures. 10. It is the theistic, and not the agnostic or the atheistic, school of evolution which is increasing in influence among the higher authorities of science. Some agnostics are proud of exhibiting under almost atheistic phraseology a really theistic philo- sophical tendency. Spencer's negations in natural theology amount to the assertion that our knowledge of the Divine existence is like our knowledge of the back-side of the moon, we know that it is, not what it is. But I assuredly know that there is not a ripple on any sedgy shore, or in the open sea of the whole gleaming watery zone, from here to Japan, which is not influenced by that unknown side as much as by the known. So, in the far-flashing 10 BIOLOGY. spiritual zones of the universe of worlds, there is not a ripple which does not owe glad allegiance to that law of moral gravitation which proceeds from the whole Divine nature, known and unknown. God is knowable, but unfathomable. The agnostics call God unknowable ; but that he is unfathomable is all that they prove, and often all that they mean. 11. As Professor Huxley does not notice the dif- ferent schools of evolutionists, his New-York defini- tion of the doctrine is defective through vagueness. 12. For the same reason, it is defective by a sup- pressed statement of hypotheses which are rivals of his own. 13. It is evident, from the nature of the case, that, the question of chief interest to religious science is, whether the new philosophy is to be established in its atheistic, its agnostic, or its theistic form. But Professor Huxley regards the order of the appear- ance of species as a matter to be studied with all zeal : the causes of their appearance he thinks are a matter of subordinate importance. At Buffalo he said, " All that now remains to be asked is, How development was effected? and that is a subordi- nate question." He thus makes the merely initial question, What? more important than the command- ing and final question, Why? The clashing looms in Machinery Hall at the World's Exhibition are of supreme moment ; the Corliss Engine, which drives them, is of subordinate and inferior interest. Re- ligious science, therefore, finds Professor Huxley curiously wanting in the sense of logical proportion. HUXLEY AND TYNDALL OK EVOLUTION. 11 14. The New- York Lectures insist on resemblances, and not on differences, in related animal forms. 15. They exaggerate resemblances by broadly in- accurate pictorial representation. The Eocene horse of Wyoming, of the genus Orohippus, Dana says is not larger than a fox (Manual of Geology, ed. of 1875, p. 505). The bones of its leg and foot were represented in the New- York reported illustrations as quite as large as those of the horse. 16. The New- York Lectures prove the existence, not of connected links, but of links with many gaps between them. They prove the existence of steps with many and long and unexplained breaks, and should prove the existence of an inclined plane. 17. They fail to reply to the great, and as yet unanswered objections to Darwinism, the absence of discovered links between man and the highest apes, the sterility of hybrids, the mental and moral superiority of man, and the existence, in many animals, of organs of no use to the possessors under the laws of either natural or sexual selection. 18. In asserting that this self-contradictory, vague, and historically inexact account of evolution is a dem- onstration of the truth of his definition, and places evolution, thus defined, on " exactly as secure a foundation." as the Copernican theory, which is veri- fied by all experiment, and has in its favor the unanimity of experts, Professor Huxley's conclusions include more than his premises. The New- York Lectures disagree in their con- clusions with those of higher geological authorities, oar 12 BIOLOGY. equally well or better acquainted with the Ameri- can facts, and notably with the conclusions of Dana and Verrill. According to these professors of the university where the relics are preserved, the bones explain, in part, the variations of one style, but do not account for gaps between groups of animals, and least of all do they account for man (DANA, Manual of Geology, pp. 590-604). Professor Gray calls himself, in his latest work, a " convinced theist, and religiously an accepter of the creed commonly called the Nicene" (Darwiniana, 1876, p. vi.). Is there yet any occasion for the dis- quietude of a free mind holding these views ? If the demonstrative evidence in favor of the materialistic form of the theory of evolution is unsatisfactory as presented by Huxley in New York, what shall be said of the subtler procedures of Tyndall's Belfast Address ? Sitting on the Matterhorn on a July day in 1868, Tyndall meditates on the period when the granite was a part of the molten world ; thinks then of .the nebula from which the molten world originated ; and asks next whether the primordial formless fog con- tained potentially the sadness with which he regarded the Matterhorn. (Musings on the Matterhorn, 27th July, 1868. Note at end of TYNDALL'S Address on Scientific Materialism, 19th August, 1868.) In 1874 he answers, Yes, and concludes that we must recast our definitions of matter and force, since life and thought are the flower of both. Accordingly, Tyndall's effort is to change the defi- HUXLEY AND TYNDALL ON EVOLUTION. 13 nition of matter. Of the many forms of materialism, his coincides nearest with a tendency which has been gathering strength among physicists for the last hun- dred years, to deny that there are two substances in the universe, matter and mind, with opposite quali- ties, and to affirm that there is but one substance, matter, itself possessed of two sets of properties, or of a physical side and a spiritual side, making up a double-faced unity. (BAIN, PROFESSOR ALEXANDER, Mind and Body, 1873, pp. 130, 140, 191, 196.) This is precisely the materialism of Professor Bain of Aber- deen, and of Professor Huxley ; and its numerous sup- porters in England, Scotland, and Germany, are fond of proclaiming that among metaphysicians, as well as among physiologists, it is the growing opinion ; and that the arguments to prove the existence of two substances have now entirely lost their validity, and are no longer compatible with ascertained science and clear thinking. TyndalTs speculations as to matter are simply an extension of the hypothesis of evolution, according to the scientific doctrine of uniformity, from the known to the unknown. Back to a primordial germ Darwin is supposed by Tyndall to have traced all organization : back to the properties of unorganized matter in a primordial nebula Tyndall now traces that germ. Evolution explains every thing since the germ. Evolution must be applied to explain as much as possible before the germ. So far as we can test her processes by observation and experiment, Nature is known to proceed by the method of evolution : 14 BIOLOGY. where we cannot test her processes, analogy requires that we should suppose that she proceeds by the same method. As all the organizations now or in past time on the earth were potentially in the primordial germ, so that germ was potentially in the unorganized par- ticles of the primordial star-dust : in other words there was latent in matter from the first the power to evolve organization, thought, emotion, and will. Where mat- ter obtained this power, or whether matter is self- existent, physical science has no means of determining. In the evolution of the universe from a primordial haze of matter possessing both physical and spiritual properties, there has been no design other than that implied in the original constitution of the molecular particles. Of course, it is utterly futile to oppose these views as self-contradictory in the light of the established definition of matter. Many of the replies made to Professor Tyndall, however, miss Ithe central point in his scheme of thought and endeavor to show that it is madness to imagine that matter, as now and for centuries de- fined by science, can evolve organization and life. But no one has proclaimed the insanity of such a supposition more vigorously than Tyndall has him- self. " These evolution notions," he exclaims, " are absurd, monstrous, and fit only for the intellectual gibbet, in relation to the ideas concerning matter which were drilled into us when young" (Address on the Scientific Use of the Imagination, 1870). Most assuredly Professor Tyndall does not propose "to sweep up music with a broom," or " to produce HUXLEY AND TYNDALL ON EVOLUTION. 15 a poem by the explosion of a type foundery." Audacities of that sort are to be left to the La Mettries and Cabanis and Holbachs : they are not attempted even by the Biichners and Carl Vogts and Moleschotts and DuBois Reymonds, who, with some whom Tyndall too much resembles, are now obsolete or obsolescent in Germany. " If a man is a materialist," said Professor Tholuck to me once, as we walked up and down a celebrated long arbor in his garden at Halle, " we Germans think he is not educated." In the history of speculation, so many forms of the materialistic theory have perished, that a chance of life for a new form can be found in nothing less fundamental than a change in the defini- tion of matter. Tyndall perceives, as every one must who has any eye for the signs of the times in modern research, that if Waterloos are to be fought between opposing schools of science, or between science and theology or philosophy, the majestic line of shock and onset must be this one definition. " Either let us open our doors freely to the conception of creative acts," he says in the sentence which best indicates his point of view in his Belfast Address, " or, aban- doning them, let us radically change our notions of matter." Now, it is singular, and yet not singular, that one can find nowhere in Tyndall's writings the changed definition on which every thing turns. The follow- ing four proposition, all stated in his own language, taken from different parts of his recent discussions, are the best approach to a definition that I have been 16 BIOLOGY. able to find in examining all he has ever published on materialism : 1. " Emotion, intellect, will, and all their phenomena, were once latent in a fiery cloud " (TYNDALL, Fragments of Science, Eng. ed., p. 163). '* I discern in matter the promise and potency of every form and quality of life " (Belfast Address, 1874). " Who will set limits to the possible play of molecules in a cooling planet? Matter is essentially mystical and tran- scendental " (TYNDALL, Fragments of Science, Eng. ed., p. 163). 2. " Supposing that, in youth, we had been impregnated with the notion of the poet Goethe, instead of the notion of the poet Young, looking at matter not as brute matter, but as the living garment of God, is it not probable that our repugnance to the idea of primeval union between spirit and matter might be considerably abated? " (Fragments of Science, p. 165.) 3. " Granting the nebula and its potential life, the question, Whence come they ? would still remain to baffle and bewilder us. The hypothesis does nothing more than transport the con- ception of life's origin to an indefinitely distant past " (Frag- ments of Science, p. 166). 4. "Philosophical defenders of the doctrine of uniformity . . . have as little fellowship with the atheist, who says that there is no God, as with the theist, who professes to know the mind of God. * Two things,' said ImmanuelKant, ' fill me with awe : the starry heavens, and the sense of moral responsibility in man.' . . . The scientific investigator finds himself over- shadowed by the same awe" (Fragments of Science, p. 167). * ' I have noticed during years of self-observation that it is not in hours of clearness and vigor that the doctrine (of materialistic atheism) commends itself to my mind, and that, in the presence of stronger and healthier thought, it ever dissolves and dis- appears, as offering no solution of the mystery in which we dwell, and of which we form a part" (Additions to the Belfast Address, in TYNDALL'S authorized edition). Of the definition of matter implied in these ex- HUXLEY AND TYNDALL ON EVOLUTION. 17 tracts, it must be affirmed, not that it is new, for it is simply what the schools call hylozoism, modified by the recent forms of the atomic theory and of the doctrine of evolution, but that it reverses the best established position of science. 1. It denies, and the established definition affirms, that inertia, in the strict sense of the word, is a prop- erty of matter. 2. It affirms, and the established definition denies, that matter has power to evolve organization and vitality. 3. It affirms, and the established definition denies, that matter has power to evolve thought, emotion, conscience, and will. In the conflict between the established definition of matter and Tyndall's definition, I, for one, prefer the established, for the following reasons : 1. If inertia is a property of matter, the power to evolve organization, life, and thought, cannot be ; but that inertia is a property of matter is a proposition susceptible of overwhelming proof from the necessary beliefs of the mind, from common consent, from the agreement of philosophers in all ages, and from all the results of experiment and observation. Of course, the logical existence of the alternatives implied in this argument is denied by those who at- tribute both inertia and spiritual properties to matter as a mystic, transcendental, double-faced unity ; but, while they use the word " inertia," their definition of it is not the established one, as is that here employed. By force, I mean that which is expended in produ- 18 BIOLOGY. cing or resisting motion. By inertia, I mean the in- capacity to originate force or motion, or that quality which causes matter, if set in motion without other resistance than itself can supply, to keep on moving forever ; or, if left at rest without other force than its own, to remain at rest forever. Materialism, hy- lozoism, and Tyndall's definition of matter, cannot justify themselves, unless it be proved that inertia is not a property of matter. Every student of this theme knows, and in this presence it is unnecessary for me to state, what the proofs are that matter can- not move itself. They are far more superabundant and crucial than even those which support the belief in the existence of gravitation. Newton himself did not regard attraction as an essential property of mat- ter ; and it was long a debate whether his great gen- eralization should be named the theory of attraction, or the theory of propulsion. If the established defi- nition of matter, and the consequent proof of the spir- itual origin of all force, or of the Divine immanence in natural law, are not to be disestablished until that late day when the proof that inertia is not a property of matter, that is, that matter can move itself, can be put into the form of a syllogism, then the yoke of Socrates, Aristotle, and Plato, of which Tyndall complains, that, after twenty centuries, it is }^et un- broken, is likely to continue to be what it now is, one of the best examples in history of the survival of the fittest. 2. The established definition of matter rests on facts verifiable by experience ; Tyndall's, confessedly, HUXLEY AND TYNDALL ON EVOLUTION. 19 is demanded and supported only by the tendencies of an improved theory of evolution. " Those who hold the doctrine of evolution," says Tyndall himself, " are by no means ignorant of the uncertainty of their data, and they yield no more to it than a provisional assent. They regard the nebu- lar hypothesis as probable ; and, in the utter absence of any evidence to prove the act illegal, they extend the method of nature from the present into the past, and accept as probable the unbroken sequence of development from the nebula to the present time " {Fragments of Science, p. 166). In his Belfast Address, Tyndall says, " The strength of the doctrine of evolution consists not in an expe- rimental demonstration, but in its general harmony with the method of Nature as hitherto known." But Ms definition of matter rests only on this theory, which, as he admits, is not verified by experiment ; while the accepted definition of matter is so verified. It is notoriously to experiment, and to ages of experi- ment, and to necessary belief itself, that the accepted definition appeals ; it is to the exigencies of an un- verified, and experimentally unverifiable theory, that Tyndall appeals. 3. According to the doctrines of analogy and uni- formity, on which Tyndall relies, matter must be supposed to be inert where we cannot experiment on it, since it is where we can. 4. Tyndall admits that the manner of the connec- tion between matter and mind is unthinkable, and that, "if we try to comprehend that connection, we 20 BIOLOGY. sail in a vacuum." His own definition, therefore, involves propositions which are unthinkable. They must have been reached by sailing through a vacuum, and can be proved only by a similarly adventurous voyage. Pertinent exceedingly to the criticism of his defi- nition of matter are Tyndall's famous admissions that " molecular groupings and molecular motions explain nothing ; " that " the passage from the physics of the brain to the corresponding facts of consciousness is unthinkable ; " and that, if love were known to be associated with a right-handed spiral motion of the molecules of the brain, and hate with a left-handed, we should remain as ignorant as before as to the cause of the motion " (Fragments of Science, pp. 120, 121). If the connection between matter and thought in the brain is so obscure, that neither Tyn- dall, nor Spencer, nor Bain, calls it the connection of cause and effect, but only that of antecedent and consequent, how can the connection between matter and thought in the nebula be so clear, that Tyndall can discern in it, at that distance, " the promise and potency of every form and quality of life " ? How is it that the relations of matter and mind are un- thinkable as they exist in the brain, and thinkable as they exist in the nebula? How is it that the nervous vibrations and the corresponding events of consciousness are, as Tyndall believes them to be, simply consecutive, or correlative, a case of " par- allelism without contact," while the matter of the universe, and the life and thought existing in the HUXLEY AND TYNDALL ON EVOLUTION. 21 universe, are so far from being a case of parallelism without contact, that the "potency" of the latter is all in the former ? 5. The established definition of matter will, and Tyndall's will not, bear Tyndall's own test of clear mental presentation. Bishop Butler shows this well enough, even when Tyndall himself, in the Belfast Address, composes the Bishop's argument. Undoubtedly Tyndall has not laid too much emphasis on the famous German saying, " The true is the clear." But his definition, contemplated with 'all patience and candor, is clear in neither its affirmations nor its negations ; while the established is capable of a coherent presentation in both these respects. So far, indeed, is the Belfast Address from knowing its own opinion, that in one place it says the very existence of matter as a real- ity outside of the mind is " not a fact, but an infer- ence," thus implying that Tyndall is not sure but that Fichte's idealism may be the truth. 6. The established definition is justified, and Tyn- dall's is not, by the irresistible testimony of con- sciousness that the will has efficiency as a cause. Dr. W. B. Carpenter, a far better physiologist than Tyndall, and whose work on " Mental Physiolo- gy," just issued, is, always excepting Lotze's " Mikro- kosmus," the best discussion produced in modern times of the connection between body and mind, analyzes elaborately all the latest facts, including Professor Ferrier's proof of the localization of func- tions in the brain; but he saves himself, as Lotze 22 BIOLOGY. does, from fatalism, materialism, hylozoism, and from that definition of matter which Tyndall adopts. He affirms a very broad and sometimes startling doc- trine of unconscious cerebration, but finds in the properties of the nervous mechanism no explanation whatever of our consciousness, that, by acts of will, we can originate physical movements, and control the direction of courses of thought. The central part of TyndaWs errors is to be found in his shy treat- ment of this necessary 'belief. There results from this shyness his insufficiently clear idea of what he means by causation. Almost while Tyndall was speaking before the British Association at Belfast on atoms, M. Wurtz, president of the French Associa- tion, was discussing before that body the same theme, and closing an opening address with no unscientific indistinctness as to what cause signifies. "It is in vain," he said, " that science has revealed to it the structure of the world and the order of all the phe- nomena : it wishes to mount higher ; and in the con- viction that things have not in themselves their own raison d'etre, their support and their origin, it is led' to subject them to a first cause, unique and univer- sal God" (Address republished in "Nature" Aug. 27, 1874). So much does Tyndall's Address lean on Professor Draper's book on " The Intellectual Development of Europe," that it is a witticism of the London press, that the discourse is rather vapory when stripped of its drapery; but Draper himself, in an elaborate chapter of his "Human Physiology" (pp. 283-290), HUXLEY AND TYNDALL ON EVOLUTION. 23 undertakes, by an argument on the absolute inertness of nerve arcs and cells in themselves considered, to demonstrate physiologically the existence, independ- ence, immateriality, and immortality of the soul. 7. The established definition is supported, and Tyndall's is not, by the intuitive belief of the mind as to personal identity. All the particles of the body are changed within seven years, as science used to teach, or within one year, as it now teaches ; and, trite as the power of this objection to materialism has made the objection itself, the inquiry is now more pertinent than ever; How is it thinkable, if matter evolves the personality, that this remains the same, while the physical man does not retain its identity during any two circuits of the seasons ? Mysterious,, indeed, is the phenomenon of the per- sistence of physical scars in living flesh that is con- stantly changing its composition. But grant that the physical basis of memory is an infinite number of infinitesimally small brain-scars, constantly repro- duced, although the particles of the brain are all changed, still it is as unthinkable that these scars should rebuild themselves as that the original cuts should cut themselves. It is the generally-accepted theory of metaphysical science, that the soul builds the body, and not the body the soul. But if it be assumed, that matter does evolve spirit, then, in the case of the physical basis of memory, it must bp supposed to be hand, chisel, inscription, and marble all at once, and not only so, but the reader of the 24 BIOLOGY. inscription ; and all this while every particle of the marble is known to crumble away, and to be replaced by entirely new particles, every twelve months. Flatter contradiction to that principle of the induc- tive method which asserts that every change must have an adequate cause does not exist anywhere than inheres in all attempts hitherto made to evolve from matter the soul's ineradicable conviction of personal identity. According to Tyndall's proposed definition, there is in man, as in the universe, but one substance : in the microcosmus, as in the macrocosmus, all is double- faced matter, spiritual on the one side, and physical on the other. There is nowhere any immaterial agent separate from a material substance. The particles of man's body are endowed with physical and spir- itual properties, and are so peculiarly grouped, that their interaction produces not only his organization, but his inmost spiritual nature. To say, however, that although the body in its living state loses all its particles, and although these are replaced by new, the old form is yet retained, and that this similar grouping of the particles explains the continuity of the consciousness implied in the sense of personal identity, is to introduce design without a designer. Collocation of parts in an organism is precisely what materialism has never yet explained. Undoubtedly oxygen and hydrogen have such properties, that, if four atoms of the former and eight of the latter come into proper collocation with each other, they will unite, and form water ; but they have no properties HUXLEY AND TYNDALL ON EVOLUTION. 25 tending to bring them together in precisely these proportions. Collocation has ever been a word of evil ornen to the materialistic theory. The particles that go out of the system do not transmit their spiritual any more than their physical qualities to the new particles that come in ; for the spiritual qualities, as the changed definition of matter states, inhere in the very substance of each particle ; and inherent properties are not transferable. When, therefore, we exhale and perspire wasted particles, there is plainly no room left by this defi- nition for denying that we perspire latent soul, and exhale latent personality. In a complete renewal of the particles of the organization, therefore, there ought to be a renewal of the personality. Such is the theory ; but right athwart the only course it can sail in juts up' the gnarled rock of man's necessary belief that he does not change his personality: a reef, this, with its roots in the core of the world ; a huge, hungry sea-crag, strewn already with the wrecks of . multitudes of materialistic fleets, and where the new materialistic Armada is itself destined to beach on chaos. 8. The established definition is justified ; and Tyn- dall's is not by the notorious failure of science to produce a single instance of spontaneous generation, 9. Admissions of the opponents of the established definition exist in abundance to prove, that, if taken "11 connection with the hypothesis of a creative personal First Cause, it explains all the facts which physical science presents ; but these same opponents 26 BIOLOGY. admit that their definition, even when the doctrine of evolution is accepted, brings the physical inquirer at the end of every possible path of investigation always face to face with insoluble mystery. 10. Finally, the mystic and transcendental defini- tion, by making matter a double somewhat, pos- sessed on its physical side of the qualities claimed for it by established science, but on its spiritual side of the properties necessary to evolve organization and life, attributes to matter self-contradictory quali- ties, and is itself inherently self-contradictory. Matter has extension, impenetrability, figure, divisibility, inertia, color. Mind has neither. Not one of these terms has any conceivable meaning in application to thought or emotion. What is the shape of love ? How many inches long is fear ? What is the color of memory ? Since Aristotle and St. Augustine, the antithesis between mind and matter has been held to be so broad, that Sir Wil- liam Hamilton's common measure for it was the phrase, " the whole diameter of being." But it is proposed now and this is the chief thing I have to say to adopt a definition of matter which shall make extension and its absence, inertia and its absence, impenetrability and its absence, divisibility and its absence, form and its absence, color and its absence, co-inhere in the same substratum. To this monstrous self-contradiction the mystic hylozoism of Bain, Huxley, and Tyndall, inevitably leads when it defines matter as a double-faced unity, physical on the one side, and spiritual on the other. The reply HUXLEY AND TYNDALL ON EVOLUTION. 27 to this transcendentalism of the evolution school is simply the first law of the syllogistic process, A is not Not-A. 1. Matter and mind have two sets of qualities, each the reverse of the other, and absolutely inca- pable of co-existence in the same substance. 2. We know that the two sets of qualities exist. 3. We know, therefore, that there are two sub- stances in which the qualities inhere. 4. There is, therefore, a separate immaterial sub- stance. As to practical inferences from this discussion, it is worth while to note that, 1. The new philosophy as to matter is consistent with a belief in the Divine existence, but not with that of the immortality of the soul. Alexander Bain thinks it absurd to talk of the freedom of the will. Hackel teaches that the will is never free {History of Creation, vol. i. p. 237). 2. Teachers of the inductive sciences must not be allowed to play fast and loose with the axioms which lie at the basis of the inductive method. Physics scorning metaphysics is the stream scorning its source. Science, of course, is not science, unless it is inductive. But behind the inductive sciences is an inductive method ; and behind the inductive method are the laws of thought. Inductive science implies inductive method ; inductive method implies syllogism ; syllogism implies axioms ; axioms imply intuitive beliefs. Of necessity resting on metaphy- sics, science has nothing surer than its axioms of 28 BIOLOGY/ intuitive truth ; but on precisely those axioms rest the inferences of free-will, responsibility, and the existence of a personal First Cause. Plaintively wrote Aristotle, after mentioning self-evidence, necessity, and universality as the traits of intuitive truth, that they who reject the testimony of the intuitions will find nothing surer on which to build. 3. A distinct definition of the word natural ought to put, and ultimately will put, all science on its knees before a personal God. Charles Darwin and Bishop Butler define this fundamental term in the same way ; and that not the obscure, heedless, misleading, outworn, and fathom- lessly vexatious way common in our brilliant periodi- cal literature. It is a fact in which much solace for timid Christians, and much taming anodyne for auda- cious small philosophers, He capsulate, that the fore- most naturalist of our times, and the greatest modern Christian apologist, explicitly agree in affirming, (1.) That " the only distinct meaning of the word natural " is stated, fixed, or settled ; " and, (2.) That " what is natural as much requires and presupposes an intelligent mind to render it so that is, to effect it continually or at stated times as what is supernatural or miraculous does to effect it for once." These f?.r-reaching propositions consist wholly of celebrated words from Butler's Analogy (part 1, chap. 1), the book which Edmund Burke used to recom- mend to the acutest of his friends as a cure for scep- ticism. Barry, the artist, for whose varied and invete- HUXLEY AND TYNDALL ON EVOLUTION. 29 rate spiritual sickness Burke prescribed only the study of this volume, was so much benefited by it, that, when he made a painting of Elysium, he placed But- ler in the foreground. In our haughty day this re- nowned passage has become in a new degree famous by being adopted through numberless editions as the postulate motto on the titlepage of Darwin's Origin of Species. It stands there as a head-light. The agreement of Darwin and Butler as to the meaning of the word natural is a beacon which ought to be kept steadily in view by any who grow dizzy as they float, perhaps anchorless, in the surges of modern speculation. Butler's and Darwin's definition is Aristotle's and Kant's and Hamilton's, and New- ton's and Cuvrer's and Humboldt's, and Faraday's and Dana's and Agassiz'. Just this definition has for ages been the established one in religious science. Of late, as if it were a new discovery, it has ap- peared as the inspiration of the loftiest portions of modern literature. The vision of what lies behind natural law constitutes the hushed " open secret," which throws the Goethes and Richters, and Car- lyles and Brownings, and Tennysons and Emersons, and ought to throw the whole world, into a trance. 4. A miracle is unusual, natural law is habitual, Divine action. The natural is a prolonged and so unnoticed supernatural. Professor Asa Gray maintains that Charles Darwin is guiltless of all atheistic intent ; that he never denied the possibility of creative intervention in the origin of species ; that he never depended exclusively on 30 BIOLOGY. natural selection for the explanation of variations in animal forms ; and that he never sneered at the argument from design, to which John Stuart Mill advises philosophers to adhere in their proof of the Divine Existence. If religion and science are once agreed in adopting Darwin's and Butler's meaning of the word natural, all that either of them has to do is to become, in Coleridge's phrase, intoxicated with God. 5. It follows, however, as a minor result of this defi- nition, that it cannot be dangerous to religion to in- quire whether the origin of species is attributable wholly to natural causes ; that is, to habitual Divine action. Is it a terrifying thing to ask whether life itself and all its modifications originated in unusual Divine action, or in habitual Divine action, or partly in one, and partly in the other? It is difficult, and to me impossible, to see what ground for dis- quietude religious science has in the prospect that either of these propositions may obtain proof. What harm, we may say with Charles Kingsley, can come to religion, even if it be demonstrated, not only that God is so wise that he can make all things, but that he is so much wiser than even that, that he can make all things make themselves ? The distinction between- mind and matter stands like a reef in the tumbling seas of philosophy ; and its roots take hold on the core of the world. In mat- ter there are definite qualities, such as weight, color, extension. In mind there are none of these: it is absurd to speak of the length of an idea, the color of HUXLEY AND TYNDALL ON EVOLUTION. 31 a choice, the weight of an emotion. When Tyndall and Bain, and other revivers of the Lucre tian materi- alism, attempt to make the qualities of matter and mind, which differ as diametrical opposites, and by the whole diameter of existence, extension and the absence of extension, color and the absence of color, weight and the absence of weight, inertia and the absence of inertia, co-inhere in one substratum, and talk of a double-faced somewhat, " physical on the one side, and spiritual on the other," they are self-contradictory. It is upon the hungry tusks of self-contradiction that whole Armadas of materialistic fleets have been 'wrecked age after age; and here Tyndall's barge of the gods, which, like Cleopatra's, " Burned on the water : the poop was beaten gold, Purple the sails, and so perfumed, that The winds were love-sick with them," only yesterday sank among the mists. But until this reef is exploded, until the distinction between matter and mind is given up, there will very evidently be adequate proof of Design in creation. Daniel Webster, when once asked if his political opinions on an important topic had changed, wrote to his questioner to look toward Bunker Hill in thf morning, and notice whether, in the night, the monu- ment had walked into the sea. If any do not care to puzzle themselves with either the shrill and shallow, or with the more quiet and profound voices of modern speculation, and yet wish freedom from mental unrest, let them not take alarm as to the 32 BIOLOGY. argument from design until the Aristotelian and age-long monumental distinction between matter and mind has moved from its base ; for, until that shaft walks into the sea, Theism is logically safe. " If," says Kingsley, " there has been an evolution, there must have been an evolver." " Faith in an order, which is the basis of science," says Asa Gray, " cannot reasonably be separated from faith in an Ordainer, which is the basis of religion." The law of develop- ment explains much, but not itself. 6. As science progresses, it draws nearer, in all its forms, to the proof of the Spiritual Origin of Force ; that is, of the Divine Immanence in natural law; that is, of the Omnipresence of a personal First Cause ; and the religious value of this proof is transcendently great. Wherever science finds heat, light, electricity, it infers the motion of the ultimate particles of mat- ter as the cause ; wherever it finds motion of the ultimate particles of matter, it infers force as the cause ; and, wherever it finds force, it infers, or will yet infer, SPIRIT. " God is law, say the wise, O soul, and let us rejoice ; For, if he thunder by law, the thunder is yet his voice. Speak to him thou, for he hears, and Spirit with Spirit' may meet : Closer is he ';han breathing, and nearer than hands and feet." TENNYSON. II. THE CONCESSIONS OF EVOLUTIONISTS, THE FORTY- SEVENTH LECTURE IN THE BOSTON MONDAY LECTURESHIP, DELIVERED IN THE MEIONAON OCT. 9. " IF every thing is governed "by law, arid if all the power is in the physical universe that ever was there, where is God ? In the intention." PROFESSOR BENJAMIN PIERCE, Unitarian Review, June 1877, p. 665. " IN regard to the physical universe, it might be better to substi- tute for the phrase ' government by laws ' ' government according to laws,' meaning thereby the direct exertion of the Divine "Will, or operation of the First Cause in the Forces of Nature, according to certain constant uniformities which are simply unchangeable, be- cause, having been originally the expression of Infinite Wisdom, any change would be for the worse." DR. "W. B. CARPENTER, Mental Physiology, chap. xx. II. THE CONCESSIONS OF EVOLUTIONISTS. AKISTOTLE said of Socrates that he invented the arts of definition and induction. But Socrates, we know, was not a teacher of logic ; he was the inves- tigator of ethical truth ; and it was in the endeavor to satisfy a distinctively theological thirst that he smote the rocks at the foot of the Acropolis, and caused to gush forth there these crystalline head- springs of the scientific method. Unless we think boldly, north, south, east, and west, and syllogisti- cally, and on our knees, we do not think at all. A Greek teacher of morals first taught us to think in this manner, and, as instruments of ethical research, invented definition and induction. The scientific method thus had a theological origin. Plato first elaborated it ; but he drew all the quenching power of the stream of his philosophy from those pristine springs of definition and induction which Socrates opened. Aristotle, no doubt, was the earliest to give a scientific form to logic as a system ; but his river of philosophy was only the continuation of the stream beginning under the Acropolis, wkere the terrific force of the blow of Socrates had caused these healing waters 35 36 BIOLOGY. to burst out. It was in theology that the scientific method first found full application. However much we may criticise the Greek and Latin schoolmen and early theologians, it remains true that they elaborated Aristotle's logic, and drew out of it a system of induction and deduction, which was only turned a little aside to new objects by Bacon. I am not one of those who think Macaulay's essay on Bacon fault- less. Gladstone has lately shown that the contrast between the system of Aristotle and that of Bacon was not as great as the brilliant historian, who loved antithetical contrasts so well, would make it out to be. The scientific method existed before Bacon's time, and it had received its elaboration chiefly in the schools of theology. But now, since Bacon's time, we hear the scientific method spoken of as if it never had a mother. We are told that religious science must borrow from physical science the scientific method. Religious science will not borrow what is her own. Aristotle affirms that it was in the search after moral truth that Socrates discovered definition and induction. Theology demands in this age, what she has demanded in every age, that we should be loyal to the scientific method. We must have defini- tion ; we must have induction ; clear ideas and spirit- ual purposes conjoined are the only deadly intellectual weapons. When a haughty attitude is assumed by physical science in the name of the scientific method, all that religious science has to do is to show that she was the mother of that method, to adhere to it herself, and to hold to it, a little mercilessly, physi- cal science also. [Applause.] . THE CONCESSIONS OF EVOLUTIONISTS. 37 Among the concessions of evolutionists, these are notorious : 1. That spontaneous generation must have oc- curred, or the doctrine of evolution as held by Hux- ley and his school cannot be true. 2. That spontaneous generation has never been known to occur. 3. That it is against all the ascertained analogy of nature to suppose that it ever has occurred. 4. That, if spontaneous generation has not occurred, it must be admitted that a supernatural act origin- ated life in the primordial cell or cells. 5. That the doctrine of evolution as held by Hux- ley cannot be true, unless some bridge can be found to span the chasm between the living and the not- living. 6. That the present state of knowledge furnishes us with no such bridge. Who makes all these far-reaching concessions? Professor Huxley. Where? In a most suggestive article on " Biology," published in " The Encyclopae- dia Britannica," the ninth edition of which, as you are aware, is now issuing from the press. It is not asserted by this Lectureship that a doc- trine of natural selection cannot be proved unless spontaneous generation can be shown to be a possi- bility. I assert, however, that the doctrine of evolu- tion " as held by Huxley and his school " cannot stand, unless spontaneous generation can be shown to have been a fact. This is Huxley's own conces- sion. He says, " If the hypothesis of evolution is true, 38 BIOLOGY. living matter must have arisen from not-living matter ; for by the hypothesis the condition of the globe was at one time such, that living matter could not have existed in it, life being entirely incompatible with the gaseous state " (HuxLEY, PKOFESSOK, T. H., Encyc. Brit., ed. of 1876, art. "Biology," p. 689). " The properties of living matter distinguish it absolutely from all other kinds of things ; and the present state of knowledge furnishes us with no link be- tween the living and the not-living " (p. 679). "At the present moment there is not a shadow of trustworthy direct evidence that abiogenesis [or spontaneous generation] does take place, or has taken place, within the period during which the existence of the globe is recorded " (p. 689). Will you put these strategic propositions into con- tact with each other ? Huxley's form of the doctrine of evolution stands or falls with the fate of the doctrine concerning spontaneous generation. Dar- win's form of it does not ; Dana's not ; and Gray's not. Huxley, you notice, expressly concedes that al] the evidence we now have is against the theory that spontaneous generation is possible, and that the pres- ent state of knowledge furnishes us with no link be- tween the not-living and the living. Hackel concedes, and it is very evident from the nature of the case, that if the primordial cells did not originate spontaneously, or by usual Divine ac- tion, they must have been originated supernaturally, or by unusual Divine action. The theory of natural THE CONCESSIONS ON EVOLUTIONISTS. 39 selection as held by Darwin does not attempt to bridge the chasm between the living and the not- living. To show how incisive the assertion is, " that life is incompatible with the gaseous state," Professor Huxley says, in a note following the sentence I have read, that it makes ,no difference, if we adopt Sir William Thomson's theory, that life may have been inducted into this planet from life in some exterior physical source. The nebular hypothesis, which is a part of the great evolution theory, asserts that all the worlds were once in a gaseous state ; and so in that exterior physical source, which was once a gas, how could life have arisen ? Even Tyndall's famous mat- ter, so richly endowed as to have in it fct the potency and promise of all life," must itself once have been in a gaseous state. When Professor Huxley and Professor Tyndall sit together at the top of the Alps, and Tyndall begins his definition of matter, if Professor Huxley will whisper to him these words, " that life is entirely incompatible with the gaseous state," it will not be logically competent to Professor Tyndall to go on speculating, as he once did on the Matterhorn, whether or not his pensiveness and his thoughtful- ness, as well as the gnarled granite peaks, were all potentially existent in the earliest nebula. Let Pro- fessor Huxley and Professor Tyndall correct each other, and perhaps there may arise, in that way, con- tagious life by collision. " But," continues Professor Huxley, " living matter 40 BIOLOGY. once originated, there is no necessity for another origination, since the hypothesis postulates the un- limited, though perhaps not indefinite, modifiability of such matter. Of the causes which have led to the origination of living matter, it may be said that we know absolutely nothing." Here is determined agnosticism. Of course, if physicists will not look outside of matter, they can have no knowledge of a first cause. " Give me mat- ter," said Kant, " and I will explain the formation of a world; but give me matter only, and I cannot explain the formation of a caterpillar." Professor Huxley likes to quote the first half of that celebrated saying, without the last. To test the value of these concessions by Huxley as to spontaneous generation, take another theme, and one on which our opinions are not divided the philosopher's stone. We do not now find our- selves able to make a philosopher's stone. We have no reason to believe that Nature ever made a stone that will transmute the baser metals into gold. There is nothing in science to show that such a stone can be found or made. But, unless such a stone has been made at some time in the past, we must give up a pet theory in philosophy. Therefore let us assert, thatj in the complex conditions of a cooling planet, perhaps the philosopher's stone may have come into existence by fortuitous concourse of atoms. [Laugh- ter.] You smile, gentlemen, because you are true to the scientific method, and I mean you shall be. But Strauss, in his " Old Faith and New," asks, " Who can THE CONCESSIONS OF EVOLUTIONISTS. 41 tell what may have occurred in a cooling planet ? " Virchow says that things were mixed in those early ages and that it must be that somehow life origi- nated spontaneously ; at least Strauss would be very glad to have us prove a negative. [Applause.] Now, gentlemen, there is a famous theory ir geology called the Uniformitarian Hypothesis. It assumes that the geological formation of the globe was due to precisely the same physical forces that now exist. We have given up the idea of great catastrophes in geology. But when we reason con- cerning spontaneous generation, if we take our stand on the further side of the fact if it ever was a fact, we are in the field of simple physical forces. Here are just the influences that brought into existence our mountains and seas, and determined events in the inorganic world. According to all established sci- ence, these forces have been uniform. The Uniformi- tarian Hypothesis turns upon the idea that uniformity exists in the forces of the inorganic world. We must, therefore, insist, that, if spontaneous generation does not occur now, it never occurred. We must do this in the name of the uniformity of nature. The chasm between the not-living and the living forms of matter is the fathomless abyss at the ragged edge of which every traveller on atheistic or agnostic roads at last lifts his foot over thin air. It is notorious that evolutionists admit, 7. That natural selection cannot have originated species, if the sterility of hybrids is a fact. 12 BIOLOGY. 8. That, in the present state of knowledge, the sterility of hybrids must be accepted as a fact. 9. That it is fair to ask, as a proof of evolution, that there be formed by selective breeding two spe- cies so different that their intercourse will produce sterile hybrids. 10. That no such species have as yet been formed by selective breeding, and that, until two such have been formed, the strongest proof of the doctrine of evolution is wanting. - Who admits all this ? Professor Huxley. Where ? In his famous " Lay Sermons and Reviews," where he cites (p. 308, American edition) Professor Kolliker, than whom there is no greater authority in embryology. This German says, " Great weight must be attached to the objection brought forward by Huxley, other- wise a warm supporter of Darwin's hypothesis, that we know of no varieties which are sterile with one another, as is the rule among sharply distinguished animal forms. If Darwin is right, it must be demon- strated that forms may be produced by selection, which, like the present sharply distinguished animal forms, are infertile when coupled with one another; and this has not been done." % What, now, does .Professor Huxley himself say, speaking before scholars, and in reply to this passage? " The weight of this objection is obvious," is his an- swer; "but our ignorance of the conditions of fertility and sterility," which have been witnessed by man six thousand years, at least, " the want of careful experiments extending over a long series of years, THE CONCESSIONS OF EVOLUTIONISTS. 43 and the strange anomalies presented by the cross- fertilization of many plants, should all, as Mr. Darwin lias urged, be taken into account in considering it." This is all he says, or-that can be said, in reply to this objection. Hackel asserts that sometimes hybrids are not, and five hundred other authorities, and all the proverbs of breeders, affirm that true hybrids are, sterile. It is safe to say that evolutionists concede, 11. That natural selection cannot take leaps, and that therefore a multitude of links must have existed between man and the higher apes. 12. That after a diligent search, for nearly forty years, for traces of these missing links, none have been found. 13. That, in spite of all imperfections of the geo- logical record, the destruction of these relics, without traces, is amazing, and that their absence leaves the argument for evolution weakest where it should be strongest. 14. That the oldest human fossils exhibit in essen- tial characteristics no approach to the ape type. " No remains of fossil man," says Professor Dana, in a most significant passage of his " Geology " (edition of 1875, p. 603), " bear evidence to less perfect erectness of structure than in civilized man, or to any nearer approach to the man-ape in essential characteristics. The existing man-apes belong to lines that reached up to them as their ultimatum; but, of that line which is supposed to have reached upward to man, riot the first link below the lowest level of exist- 44 BIOLOGY. ing man has yet been found. This is the more extraordinary, in view of the fact, that, from the lowest limits in existing man, there are all possible gradations up to .the highest ; while below that limit there is an abrupt fall to the ape-level, in which the cubic capacity of the brain is one-half less. If the links ever existed, their annihilation without trace is so extremely improbable, that it may be pronounced impos- sible. Until some are found, science cannot assert that they ever existed" [Applause.] In regard to these missing links, Darwin himself says that their absence is amazing. Even Huxley says of what is unquestionably one of the oldest fossil skeletons of man, that it has " a fair, average human skull." The lengths of the bones of the arm and thigh of the man of Mentone, one of the oldest human fossils yet discovered, have the proportions ordinarily found in man, and the skull is of excel- lent Caucasian type. (See DANA'S G-eology, frontis- piece, and pp. 575, 577, and 603.) The poorest fossil human brain is twice the cubic capacity of the best ape brain (DANA'S Geology, p. 603). It must be noticed that evolutionists admit, 15. That, if any animal can be shown to possess organs or peculiarities of no use to it in the struggle for existence, the theory of natural selection breaks down. 16. That the hairlessness of man was not only of no use, but was a disadvantage, to him in the struggle for existence, and cannot be accounted for by natural selection, and must be accounted for by sexual selec- tion. THE CONCESSIONS OF EVOLUTIONISTS. 45 17. That many animals possess peculiarities, which, so far as we can see, can be of no use to them in the struggle for existence, and cannot be accounted for by any form of selection, natural or sexual. In his " Descent of Man," published in 1871, Mr. Darwin himself makes these great concessions. " Natural selection," said Mr. Darwin in his " Origin of Species," published in 1859, " can act only by taking advantage of slight successive variations ; it can never take a leap, but must advance by -short and slow stages. If it could be demonstrated that any complex organ existed which could not possibly have been formed by numerous successive slight modifications, my theory would absolutely break down." Compare that extract with this : " I now admit, after reading the essay of Nageli on plants, and the remarks by various authors with respect to animals, that, in the earlier editions of my ' Origin of Species,' I probably attributed too much to the action of natural selection or the survival of the fittest. I had not for- merly sufficiently considered the existence of many struc- tures which appear to be, as far as we can judge, neither beneficial nor injurious ; and this I believe to be one of the greatest oversights as yet detected in my works " (Descent of Man, English edition, vol. i. p. 152). It may be safely asserted that evolutionists con- cede, 18. That whether the cause of variation is a force exterior or one interior to the modified organism, or a combination of these forces, is not known. 46 BIOLOGY. 19. That it is probable that variation is due much more to some innate force in the modified organism than to any thing outside of it. 20. That the influence of natural selection has been exaggerated; that it explains much, but not every thing ; that it deserves only a co-ordinate rank with sexual selection as the explanation of the origin of man ; and that very possibly it should have a sub- ordinate -rank in contrast with yet unknown causes of variation. " No doubt man, as well as every other animal" says the Charles Darwin of to-day, "presents structures which, as far as we can judge with our little knowledge, are not now of any service to him, nor have been so during any former period of his existence, either in rela- tion to his general conditions of life, or of one sex to the other. Such structures cannot be accounted for by any form of selection, or by the inherited effects of the use and disuse of parts " (Descent of Man, vol. ii. p. 387). " In the greater number of cases we can only say that the cause of each slight variation and of each monstrosity lies much more in the nature or constitution of* the organism than in the nature of the surrounding conditions, though new and changed conditions cer- tainly play an important part in exciting organic changes of all kinds" (Ibid., vol. ii. p. 388). These astonishing modifications of his own theory by Darwin induce Professor St. George Mivart to assert in his " Lessons from Nature," a work which has but just crossed the Atlantic, that " the hypothesis of natural selection originally put forward as the origin THE CONCESSIONS OF EVOLUTIONISTS. 47 of species has been really abandoned by Mr. Darwin himself, and is untenable. It is a misleading positive term, denoting negative effects, and, as made use of by those who would attribute to it the origin of man, is an irrational conception," "a puerile hypothe- sis" (MIVAKT, PROFESSOR ST. GEORGE, Lessons from Nature, London, 1876, pp. 280-331). Any who remember Professor Huxley's article on Darwin's Critics, in " The Contemporary Review," for Novem- ber, 1871, will recall the strong terms in which he speaks of Mivart's scientific and philosophical com- petence. But Mivart holds nearly Professor The- ophilus Parsons's and Owen's creed, that species have originated by a force interior, and not exterior, to the modified organism. To that position Darwin draws nearer and nearer. Among Darwinians there seems to be a conspiracy of silence as to this fact. Dar- winism is becoming Owenism. Darwin himself is not a good Darwinian. [Applause.] God be thanked that this age takes nothing for granted ! No : it does take one thing for granted, its own superiority to all other ages ; and yet one other thing, that there are not more things in heaven and earth than are dreamed of in its philoso- phy. But, my friends, the scientific method requires, that, when we run up our list of causes, chemical, electrical, physical, mental, spiritual, we should put at the top, to reach on into the infinite, another class, the unknown. Even in the nineteenth century, there are more things in heaven and earth than are dreamed of in our philosophy. III. THE CONCESSIONS OF EVOLUTIONISTS. THE FORTY-EIGHTH LECTURE IN THE BOSTON MONDAY LECTURESHIP, DELIVERED IN THE MEIONAON OCT. 16. " THE convertibility of the physical forces, the correlation of these with the vital, and the intimacy of that nexus between mental and bodily activity, which, explain it as we may, cannot be denied, all lead upward towards one and the same conclusion, the source of all Power in Mind; and that philosophical conclusion is the apex of a pyramid, which has its foundation in the primitive instincts of humanity." DR. "W. B. CARPENTER, Mental Physiology, chap. xx. "CAUSATION is the Will, Creation the Act, of God." W. B. GBOVB, Essay on the Correlation of Physical Forces. III. THE CONCESSIONS OF EVOLUTIONISTS. - THE small philosopher is a great character in New England. His fundamental rule of logical procedure is to guess at the half, and multiply by two. [Ap- plause.] God be thanked for the diffusion of knowl- edge ! God save us from the attendant temporary evils of arrogant sciolism in democratic ages ! These are a necessary transitory stage in the progress of popular enlightenment which has just begun to dawn in this yet dim Western world. A little knowledge is a dangerous thing; and it is our boast, that, in America, every man has a little knowledge. We must drink deep, or taste not the Pierian spring; but every breathlessly hurried free citizen now is en- deavoring, to his honor, to have a taste at least ; and yet we know how mercilessly commerce and greed, and the toil for daily bread, wrench parched lips away from the deep draught. Full popular enlightenment is popular sanity ; penumbral popular enlightenment is often popular insanity; and yet the penumbral must precede the full radiance. The small philoso- pher is always a great character under representative institutions. He seems destined to reign long on the 51 52 BIOLOGY. earth, and often disastrously, and yet not forever. We are an atrociously independent, and as yet only a half-educated people. De Tocqueville said that individualism is the natural, and must often be a most mischievous, basis of democratic philosophy. To her great credit and to her great temporary men- tal distress, Massachusetts, in which popular enlight- enment is more widely diffused than elsewhere, has probably just now more small philosophers than any other population of equal size on the globe. Emer- son wrote of average Massachusetts as she was thirty years ago, " It is a whole population of ladies and gentlemen out in search of a religion." No doubt it is to our credit that we study the newspapers ; but it is not to our credit that we do not better main- tain the best ones, and that we do not sift newspaper information a little more warily, and that some of us think a man can be competently educated on the most trustworthy part of the daily press. "We must destroy the faith of the people in the penny, newspaper," I once heard Carlyle say in his study at Chelsea. I fathomlessly respect able and con- scientious newspapers; I revere their majestic mis- sion in history. I used to be told in Europe that Americans are governed by newspapers ; and I was accustomed to answer, " No, gentlemen, not by news- papers, but by news a very different thing." But, whether the shrewdest readers get at the news that is the most strategic in science, in politics, in art, in theology, -by a hasty scramble through the mid- night scribble of our cheaper dailies, is rather doubt- THE CONCESSIONS OF EVOLUTIONISTS. 53 ful, or, rather, not doubtful at all. The most ap- propriate prayer, when one takes up the penny newspaper, is an invocation of the spirit of unbelief. But the best-used book of your small philosopher is the newspaper. He is unchurched in art, in science, in theology. He hears great names; he obtains glimpses of great truths ; he puts half- truths in the place of systems that will bear the microscope ; and when religious science occasionally gets his haughty hearing, it cannot on the Sabbath- day go into secular discussion with him, and you cannot hold his attention at first, except by secular discussion. You say that I am using this Lectureship very maladroitly, and that it is not wise to discuss here evolution and materialism. I do not speak to or for ministers or scholars, although they crowd this hall ; I am talking to small philosophers. Lord Bacon said that " truth emerges sooner from error than from confusion; " and, in the spirit of that remark, you will allow me to be analytical, and to number my propositions, in order that I may save time, and yet be distinct in a crowded discussion. Twenty concessions having been mentioned in a previous lecture, it is next to be noticed that it is notorious that evolutionists admit, 21. That life is incompatible with the gaseous state, or the state of fused metals. 22. That our present knowledge justifies the con- clusion, that probably two hundred millions, and cer- tainly five hundred millions, of years ago, the earth and the sun were in a fused state. 54 BIOLOGY. 23. That neither two hundred nor five hundred millions of years are enough to account for the for- mation of plants and animals from primordial cells on the theory of the Darwinian transmutation. These, gentlemen, are the outlines of what many men of science regard as the most serious of all objections to the hypothesis of evolution. This is the only difficulty to which Professor Huxley in his New- York lectures condescended to reply, it is the most prominent of the objections which Hackel endeavors to refute in his recent daring work on " The History of Creation." I now hold in my hand this book, of which Darwin himself says, that its author has much more information than he has on many points, and that, if it had appeared before " The Descent of Man," the latter work would probably never have been written. Professor Hackel teaches at present in the University of Jena, in Germany ; and he is one ot the most extreme of evolutionists. He denies the free- dom of the will, and is a thorough-going defender of the theory of the possibility of spontaneous generation (HACKEL, History of Creation, chap. xiii.). IJe affirms, as Huxley does, that we have no direct evi- dence that spontaneous generation has ever occurred, and that it is against all the analogy of current nature to suppose that it has occurred. But he knows the exigencies of the radical form of the theory of evo- lution ; and so he assumes, with Strauss, that possi- bly in a cooling planet a living cell may have been originated by the fortuitous concourse of atoms. A cell once originated, we can account for all life. But THE CONCESSIONS OF EVOLUTIONISTS. 55 he is painfully aware that the Darwinian transmuta- tion requires almost immeasurable time. " In the same way," he says, " as the distances between the different planetary systems are not calculated by miles, but by Sirius-distances, each of which comprises millions of miles, so the organic history of the earth must not be calculated by thousands of years, but by paleontological or geological periods, each of which comprises many thousands of years, and per- haps millions, or even milliards of thousands of years" (^History of Creation, chap. xxiv.). To the same effect speak Lyell and Dana, and even Darwin (LYELL, Geology, vol. i. pp. 234, 235 ; DANA, G-eolo- gy, ed. of 1875, p. 591 ; DARWIN, Origin of Species, p. 286). Now, Professor Huxley very strangely said, in his lectures in New York, that, if the astronomer and geol- ogist will settle between themselves the question as to the length of geological time, he will "agree with any conclusion." Not so speaks the candid Darwin ; not so the audacious Hackel ; not so Lyell ; not so Dana ; not so any cautious evolutionist ; not so even Huxley himself, when he talks before scholars. "Thousands of millions of years," says Dana (Geology, pp. 59, 591), "have been claimed by some geologists for time since life began. Sir William Thomson has reduced the estimate, on physical grounds, to one hundred millions of years as a maxi- mum." " Any " conclusion ! Let us take the best estimate there is, that of one hundred million years ; 56 BIOLOGY. and Hackel implicitly affirms that this is not enough for the process of the Darwinian transmutation. What is the evidence, gentlemen, that our earth and the sun were in a molten condition, say, five hundred millions of years ago ? We tolerably well know of what materials the sun is composed. We bring down by the spectroscope its talkative rays, and we can tell what metals are in it. We know the nature of these metals on our globe. Heat is the same thing here and there; gravitation, the same here and there ; light, the same here and there. The immense argument of analogy makes us sure of our footing just so far as the unity of nature prevails. We can estimate approximately what the heat must have been that would fuse the globe and the sun. Sir William Thomson, whose scientific eminence no man will deny, went into a very labored calcula- tion, not long ago, to determine how many years since it was that the sun was a molten mass, and how many years since it was that the globe was in a fused state ; and it is very significant that he came to the same conclusion in both cases. The two con- clusions tallied. The sun, he said, must have been in a molten state four hundred millions of years ago at the most ; and it probably was in that state two hundred millions of years ago at the least. The same may be said of the earth, which, however, was not cool enough to admit life until about one hun- dred millions of years ago, as Dana says. When we look at the reasons why Professor Huxley sneers at this argument, we are the more amazed. THU CONCESSIONS OF EVOLUTIONISTS. 57 " The biologist," he says, " knows nothing whatever of the amount of time which may be required for the processes of evolution." Does not he know that there is an immense extent of time required for it ? " Nothing whatever " known about the period needed ! Why, all Darwinians are agreed, all evolu- tionists are agreed, that we must take Sirius-distances to measure the time required by evolution. " I have not the slightest means of guessing," said Professor Hux- ley at New York, " whether it took a million of years, or ten million, or an hundred million of years, or a thousand millions of years, to give rise to that series of changes." On Darwin's, Lyell's, Dana's, and Hackel's authority, this must be called careless talk. It leaves a colossal objection unshattered. (See North British Review, 1867, vol. xlvi. p. 304.) It is admitted by evolutionists, 24. That variability in species is a lessening quan- tity as descendants are farther and farther removed in form from their progenitors. 25. That, as every lessening must be a finite quan- tity, species are known to vary only within compara- tively narrow limits. 26. That selective breeding has thus far found variability a limited quantity. 27. That the observed differences caused by varia- bility are infinitely small as compared with the range of variability required by the Darwinian theory. It has been well said that the savage, looking upon a projectile of modern artillery, might carelessly think it would reach the stars. He does not make 58 BIOLOGY. allowance for the circumstance that the speed of the ball is a lessening quantity. We find it to be a fact, that, the farther a derived animal form is removed from its progenitor, the less and less rapidly varia- tions proceed. It follows, therefore, that these les- sening variations may be fitly represented by a sphere, the original progenitor being the centre, from which there may be variations in all directions, and to which there may be reversions in any direction (North British Review, vol. xlvi., art. on "The Ori- gin of Species"). The variations are like the throw- ing-up of a cannon-ball from the earth ; the motion away from the central point is slower and slower as the distance between the ball and the central point is greater and greater. We assuredly know that it is a truth of science that variability is a lessening quantity ; and we therefore do know mathematically that there are limits to variability; for every lessening number is a finite quantity. Thus, gentlemen, there are broad distinctions to be made between so-called species of a variable and real species of an unvarying kind. If we are to be abreast of our modern science, we shall be shy of saying that there is nothing which has been called a species which may be transmuted into another species. I would confine the definition of species to the limits of ascertained variability. Here is the sphere of vari- ation ; and we know that the more any descendant varies from its progenitor, the more likely it is to revert. It may go back in a single generation. The law of science is, that variability, being a lessen- THE CONCESSIONS O3F EVOLUTIONISTS. 59 ing, is a finite quantity. If you will draw a circle around the outermost sphere of variability, you will have what Hiickel calls a " good species " in distinc- tion from a merely nominal species. The thing we need most in the discussion of evolution is a new defi- nition of species. A. real species will be conterminous with the outermost limits of the sphere of ascertained variability. Grant me this definition, and I will stand with established science on the fact that we have no direct evidence that any real species, thus defined, has ever been transmuted into another species. [Applause.] It is notorious that evolutionists concede, 28. That the cubic capacity of the brain of the highest apes is thirty-four inches, and of the lowest men sixty-eight. 29. That the brain of man is by much larger than he needed in the struggle for existence. 30. That the struggle for existence, or natural selection, does not account for the brain of man. 31. That the eye of the trilobite, one of the oldest of fossil forms, is fully developed and perfect. 32. That the trilobites appear suddenly in the geo- logical record ; that there are no premonitions of their approach ; and that there is as yet no direct evidence that they had any ancestry. 33. That the use of an organ may account for its modification, but not for its formation, since it cannot be used until it is formed. 34. That in many cases, like those of the eye of the trilobite and the brain- of man, not only the theory of natural selection, but that of sexual selec- tion, breaks down completely. 60 BIOLOGY. 35. That in some cases it is impossible to imagine what has produced useful variations in animal forms. 36. That, in certain instances, the adaptation of means to ends cannot be accidental, but must be referred, not to natural, but to supernatural law; that is, not to the habitual, but to unusual divine action. These, gentlemen, are startling concessions; arid the most startling of them all is the last, that there are instances in which the adaptation of means to ends "cannot be accidental." But those are Dar- win's words. You will remember that in his deli- cious book on the " Fertilization of Orchids," at the end of its first chapter he speaks of a marvellous arrangement by which, in one species of these flowers, the sipping-moths are " purposely delayed in obtain- ing nectar." He says, " If this is accidental, it is a fortunate accident for the plant. If this be not acci- dental, and I cannot believe it to be accidental, what a singular case of adaptation ! " Professor Mivart {Lessons from Nature, 1876, chaps, ix. and x.) quotes several similar admissions from Darwin's later writ- ings ; and he regards them as a virtual, though not explicit, retraction of the theory of natural selection. You say these are all careless expressions on the part of Darwin ? I beg pardon : they are not so under- stood by men of scientific competence, some of whom watch him more closely than the tiger watches its prey. I am riot one of those who lie in wait to find fal- lacies in Darwin; for it matters little to me, as a THE CONCESSIONS OF EVOLUTIONISTS. 61 student of religious science, which one of the three; or four theistic systems of evolution is proven to be the best. If there is a change, I know that every change must have an adequate cause. If there is order in the universe, I know there must have been an Ordainer; for every change must have had an adequate cause. Based upon incontrovertible axio- matic truth, any man may stand in the yeasting seas of speculation, and feel that victorious reef tremorless beneath him ; ay, and fall asleep on it, while the rock, in muffled stern thunders, speaks to the waste, howling midnight surge, " Aha ! thus far ye come, but no farther." Men can never give up belief in causa- tion. If we know there has been evolution in the universe, we know that there has been an Evolver ; and, if design, a Designer ; for every change must have a sufficient cause. It will not be to-morrow, nor the day after, that men will give up self-evident, axiomatic truths. Owen, Parsons, Mivart, Dana, and Darwin him- self, all admit that useless characteristics and organs cannot be explained by natural selection ; and Dar- win has made lately many admissions of his over- sights on this point. Dana, to the latest date, disagrees completely with Huxley and Hackel as to the origin of man, and agrees with Owen, Gray, Mivart, Parsons, and the whole long, stately, and growing list of the theistic school. It is not denied anywhere, that a certain extent of variation may be experimentally produced by ex- 62 BIOLOGY. ternal conditions, as in the brine shrimp and the axiolott. What is denied is, that external condi- tions can account for the difference between the not-living and the living. It seems to be the policy of atheistic and agnos- tic evolutionists to obscure the distinction between a theory and the theory of evolution. The tendency of science is in favor of the former, and against the latter; that is, for Dana and Hermann Lotze, and against Herbert Spencer and Hackel. The different schools of evolutionists must be distinguished, or there can be no clearness of discussion on this theme. You will allow me to read one passage from Pro- fessor Dana on the great contrast between the brain of man and that of apes. Professor Dana, with re- spect be it said, is not a Darwinian ; it is hardly fair to call him, without qualification, an evolutionist. He believes that evolution explains much ; he does not believe that it explains every thing. He does not account for man by evolution. He agrees with Wallace, Darwin's great coadjutor, with regard to the origin of the human will and conscience. Professor Dana, in justifying his significant concessions, says (Geology, p. 603), "In the case of man, the abrupt- ness of transition 4 from preceding forms ' is still more extraordinary, and especially because it occurs so near to the present time. In the highest man-ape, the nearest allied of living species has the capacity of the cranium but thirty-four cubic inches ; while the skeleton throughout is not fitted for an erect position, and the fore-limbs are essential to locomo- THE CONCESSIONS OF EVOLUTIONISTS. 63 tion : but, in the lowest of existing men, the capacity of the cranium is sixty-eight cubic inches ; every bone is made and adjusted for the erect position ; and the fore-limbs, instead of being required in locomotion, are wholly taken from the ground, an4 have other and higher uses." You will be told that Professor Huxley has said that man differs less from the apes than the upper apes do from the lower apes, or than the uppermost men from the lowermost. You will be assured that there is this and that and yet another point of resemblance between the skeletons of man and of the apes. But bring the contrast to the real test. What of the brain ? That is the central portion of the system : increased cephalization is the law of the progress of animal forms ; and, the moment you compare man and the ape on that strategic point, the difference is half. Thirty-four cubic inches of cranial capacity on the animal side, sixty-eight on the human, and no link between the two ! Forty years given to the search ! All the agony of the defence of the Darwinian hy- pothesis engaged in all quarters. of the globe in filling up this tremendous gap, and the colossal absence yet remaining ! Professor Agassiz lies in Mount Auburn yonder ; and on his breast there is a bowlder from his native Alps. Whenever I look on it, I think what a bowlder that man may have carried on his breast into his grave, because he was not able to develop the proposition which he laid down as a gantlet before Darwinism 64 BIOLOGY. in the last article lie ever printed. You remember that in our brilliant Atlantic Monthly, face to face with the world, Professor Agassiz, a few days before he passed into that Unseen Holy where all puzzles are solved, affirmed that it can be proved that the geological record is not so imperfect but that we know what existed between the highest apes and the lowest men, and that, however broken it may be, " there is a complete sequence in many- parts of it, from which the character of the succession may be determined" (Atlantic Monthly, vol. xxxiii. p. 101). He promised to prove that. He bent that colossal bow, and it dropped out of his dying hand. On the English-speaking globe, now that Lyell has gone hence, there is no man but Dana that can take up that bow, and bend it. But what does Dana say ? Go to Agassiz's grave ; take with you these yet moist sheets of the last number of the American Journal of Science and Arts ; read over Agassiz's tomb the latest utterance of the high- est and gravest authority in American geological science, and you may bring solace to a hovering, mighty spirit for an unfinished task. You will read Dana's latest words (American Journal of Science and Arts, October, 1876, p. 251) : " For the devel- opment of man, gifted with high reason and will, and thus made a power above Nature, there was required, as Wallace has urged, a special act of a Being above Nature, whose supreme Will is not only the source of natural law, but the working-force of Nature herself. This I still hold" You say that Agassiz was unduly THE CONCESSIONS OF EVOLUTIONISTS. 65 theistic, and assumed that there is nothing in evolu- tion. Dana is more cautious. The present state of knowledge, he says (Greology, pp. 603, 604), favors the theory that " the evolution of the system of life went forvvard through the derivation of species from species, according to natural methods not clearly understood, and with few occasions for supernatural intervention. The method of evolution admitted of abrupt transitions between species ; but for the development of man there was required the special act of a being above Nature, whose supreme will is the source of natural law." Huxley has come; Huxley has spoken ; Huxley has gone ; and Dana, over Agassiz's grave, joins hands with Agassiz in the Unseen Holy, to affirm that man is the breath of God. [Applause.] It is notorious that evolutionists concede, 37. That "molecular law is the profoundest ex- pression of the Divine Will." This is Dana's lan- guage (Am. Jour., October, 1876, p. 250). 38. That, therefore, even if the nebular hypothe- sis be accepted, design in creation yet stands proved. 39. That, even if spontaneous generation under molecular law were demonstrated, the fact of design in creation would yet stand proved. If you will elaborately master Professor Stanley Jevons's famous work on the " Principles of Science," you probably will come to his theistic conclusions, even if you believe in the possibility of spontaneous generation under molecular law. We have had im- portant works on the logical method and order, from 66 BIOLOGY. Aristotle to Kant and Hamilton ; and yet, Professor Pierce of Harvard being judge, there have been few more important productions on that theme than the " Principles of Science," by Stanley Jevons, professor of logic and political economy at Owens,' s College Manchester. He is an evolutionist; but he is also a logician. " I cannot," he says, "for a moment admit that tlie theory of evolution will alter our theological ideas. . . . The precise reason why we have a backbone, two hands with opposable thumbs, an erect stature, a complex brain, about two hundred and twenty-three bones, and many other peculiarities, is only to be found in the original act of creation. I do not, any less than Paley, believe that the eye of man manifests design. I believe that the eye was gradually devel- oped ; but the ultimate result must have been contained in the aggregate of causes ; and these, so far as we can see, were subject to the arbitrary choice of the Creat- or " [applause] ( JEVONS, PROFESSOR W. STANLEY, Principles of Science, vol. ii. pp. 461, 462). It is notorious that even Tyndall concedes, 40. That if a right-hand spiral movement of the particles of the brain could be shown to occur in love, and a left-hand spiral movement in hate, we should be as far off as ever from understanding the connection of this physical motion with the spiritual manifestations (Fragments of Science, pp. 120, 121). It is conceded by Dana, 41. That the possession by man of free-will and conscience shows that he must have been brought THE CONCESSIONS OF EVOLUTIONISTS. 07 into existence by a being at least as perfect as him- self; that is, by an agency possessing free-will and conscience. 42. That evolutionists are of two schools, the ex- travagant and the moderate, or the wholesale and the discriminating ; and that the former do, and the latter do not, account for man by the theory of evolution. Hackel concedes, 43. That the theory of man's descent from apes is, according to the admission of the wholesale evolu- tionists, deductive, and not inductive, a result of speculation, and not of observation. 44. That it probably can never be established by the inductive, that is, by the most strictly scientific method. Do you suppose that I think that this audience can be cheated? I do not know where in America there is another weekly audience with as many brains in it ; at least I do not know where in New England I should be so likely to be tripped up if I were to make an incorrect statement, as here. " The process of deduction," says Hackel, " is not based upon any direct experience. Induction is a .logical system of forming conclusions from the special to the general, by which we advance from many individual experi- ences to a general law. Deduction, on the other hand, draws conclusion from the general to the special, from a general law of nature to an individual case. Thus the theory of descent is, without doubt, a great inductive law, empirically based upon all bio- logical experience. The theory, on the other hand, 68 BIOLOGY. which asserts that man has developed out of lower, and, in the first place, out of ape-like mammals, is a deductive law inseparably connected with the general inductive law " (HACKEL'S History of Creation, vol. ii. p. 357). The theory of man's origin from apes is not based upon direct experience. Merely deductive conclu- sions from circumstantial evidence are sometimes lawful. We do not know all about the worlds be- yond the sweep of the telescope ; but so firmly is the theory of gravitation established that we believe that, if a new world should be discovered, it would be found to be under the law of gravitation. If you will prove by induction the system of evolution as thoroughly as the Copernican system has been proved by induction, you may then fill gaps by deduction. Astronomers pre- dict sometimes that eclipses will occur, and they do occur according to prediction ; and we think, there- fore, that we have ascertained something conclusive as to the mechanism of the heavens. If evolutionists can by selective breeding produce from the same stock two varieties so widely differing that their crossing will produce sterile hybrids, then Twill say that they have a scientific right to fill up by deduction the gaps in the direct evidences of evolution, and not till then. [Ap- plause.] Professor Hackel further concedes, 45. That " most naturalists, even at the present day, are inclined to give up the attempt at natural explana- tion " of the origin of life, " and take refuge in the miracle of inconceivable creation " (HACKEL'S History of Creation, vol. i. p. 327). THE CONCESSIONS OF EVOLUTIONISTS. 6& The trouble with your small philosopher- in Massa- chusetts and England is, that he out-Darwins Darwin and out-Hiickels Hackel. It is important, at times, that the pulpit should show that it is not afraid of these topics ; and you will notice, that, in this Lec- tureship, the theme of evolution is not skipped. You will pardon me one further word on Bathy- bius, which Professor St. George Mivart calls a sea- mare's nest. " No more of that, Hal, an thou lovest me." Hackel has minutely figured Bathybius in the plates of his most elaborate works. Huxley named it from Hackel, Bathylius HdckeliL Strauss rested on Bathybius the central arch of his argument against the supernatural. It was the haughty claim of Huxley and Strauss and Hackel, 46. That Bathybius is an organism without organs. 47. That it performs the acts of nutrition and propagation. 48. That, with other organisms like itself, it stands at the head of the terrestrial history of the devel- opment of life. 49. That it spans the chasm between the living and the not living. 50. That it renders belief in miracle impossible. Hackel makes Bathybius a stem from which all terrestrial life divides, and comes to its present state {History of Creation, vol. i. pp. 184, 344, and vol. ii. p. 53). It would not be worth much for me here to 70 BIOLOGY. cut down this or that bough in the great tree ; but if, with the latest scientific intelligence, I may strike at its bottom stem, Bathybius, I shall have done something. You must not think that students of religious science have no right to be interested in this classical organism. We have heard of it in theo- logical works. We had it thrust in our faces as proof that a miracle is impossible. We therefore are interested, when, walking past our bookstores, we can pick up the yet fresh sheets of the American Jour- nal of Science and Arts, and turn to a passage on Bathybius in an article on the voyage of the ship Challenger. Will gentlemen here do themselves the justice, and this topic the justice, to read this authoritative intelligence (October number, pp. 267, 268) ? You will find there this closing concession : 51. That Bathybius has been discovered in 1875 by the ship Challenger to be hear, O heavens ! and give ear, O earth ! sulphate of lime ; and that, when dissolved, it crystallizes as gypsum. [Applause.] IV. THE MICROSCOPE AND MATERIALISM, THE FORTY- NINTH LECTURE IN THE BOSTON MONDAY LEC- TURESHIP, DELIVERED IN THE MEIONAON OCT. 23. irrpvov, GKioeidea i)7i' ARISTOPHANES: Aves, Blut ist ein ganz besonderer Saft. Die Geisterwelt ist niclit verschlossen; Dein Sinn ist zu, dein Herz ist todt! Auf! bade, Sch tiler, unverdrossen Die ird'sche Brust im Merge nroth. GOETHE: Faust. IV. THE MICROSCOPE AND MATERIALISM. PLATO in his Pheedon represents Socrates as say- ing in the last hour of his life to his inconsolable fol- lowers, " You may bury me if you can catch me." He then added with a smile, and an intonation of unfathomable thought and tenderness, " Do not call this poor body Socrates. When I have drunk the poison, I shall leave you, and go to the joys of the blessed. I would not have you sorrow at my hard lot, or say at the interment, ' Thus we lay out Soc- rates ; ' or, ' Thus we follow him to the grave, and bury him.' Be of good cheer : .say that you are burying my body only " (PLATO, Phcedon, 115 ; JOWETT'S Plato, vol. i. pp. 465, 466; QUOTE'S Plato, vol. ii. p. 193). Materialism teaches that there is nothing in the universe but matter and its laws ; that there is no spiritual substance ; and that what is called mind or soul in a man is but a mode of force and motion in matter, and cannot exist in separation from the body. If materialism is the truth, you and I cannot die as well as Socrates did. If that part of us which thinks and loves and chooses is not separable from 73 74 BIOLOGY. our present material frames, our souls are like the electrical charges in the glands of the poor torpedo- fishes, certain to cease to exist as soon as the cells which originate them have been dissolved. On the Peruvian coasts of South America, men drive horses down to the edge of the great deep, in order that they may receive shocks from electric-eels ; and sometimes the hoof of a horse will smite the life out of one of his tormentors; and then the wrecked swimming creature ceases forever to be an electric battery, because the cells in which the electricity originated are destroyed once for all. Now, materialism is the doctrine that the soul is in some sense secreted by the brain, as electricity is by the cells of the torpedo-fish or electric-eel, and that, when the brain is dissolved, the soul is no more. I do not call this an impious inference, if it be, indeed, an inference fairly deduci- ble from facts ; truth is truth, even if it sears our eyeballs ; I call it, however, a withering inference. I am not prejudiced against any conclusion reached through clear ideas ; but the momentous issues in- volved in the affirmations of materialism make me anxious to look into these cells, which Hiickel and Biichner and Moleschott say originate the soul. Ca- banis, as Carlyle narrates with grimmest humor, thought the brain secreted soul as the liver does bile. This philosophy, and the gospel according to Jean- Jacques, were, we know, two of the broadest and blackest of the far-flapping Gehenna wings that fanned the furnaces of the French Revolution. It is not commonly known, except among special- THE MICROSCOPE AND MATERIALISM. 75 ists in microscopical physiology, that the latest science has something to say to us of immense import as to the relations of matter and life. That theme comes home to the business and bosoms of all men ; and, whatever be the verdict of full investigation, all will be eager to face it, who seek, as we do here, whatever is new and true and strategic in religious thought. On the doctrine of organic cells and living tissues, there is surely no book over fifteen years old that is not largely worthless. A text-book on geology, it is often said, is out of date as soon as it is printed. So swift has been the advance of microscopic investiga- tion, that our cell-theory, which began to be elabo- rated in 1838, has made its supreme advances since 1860. " All life from a cell : " we have heard that doctrine since 1840. " All life from bioplasm," which is the core of the organic cell, we have heard as a scientific truth since about 1860. The first physio- logical microscopist in the English-speaking world is now Professor Lionel Beale of King's College, London ; and his. work on " Protoplasm, or Matter and Life," published with elaborate original plates, some of which are of as late a date as 1874, is one of the most impor- tant contributions made to knowledge recently by any original investigator of this central question of ques- tions, whether, when the cells of the brain are dis- solved, the soul, like so much electricity, developed through them, is dissipated forever. You remember, gentlemen, that in Dresden the great picture of the Madonna di San Sisto has an inte- rior which everywhere suggests an ineffable exterior. 76 BIOLOGY. Many look upon that painting, and study the hushed, shoreless awe and self-surrender of the eyes of the cherubs in the lower part of the transfigured canvas, and do not ask on what, the cherubs are looking. But to cause the observer to ask that, is the chief object of this inspired part of the painting. The Madonna di San Sisto was made for an altar-piece. It was intended to stand before burning incense. In a great cathedral its place would be behind the altar, on which incense is burned to ascend to an unseen but near Holy of holies. It is on the central Ineffa ble Presence before the picture, and to which the incense rises, that these supernaturally intense eyes of the cherubs are looking. Santa Barbara, as you will observe, divides her adoration between the Son in the arms of the mother and the Unspeakable Unseen before him. Another kneeling figure looks toward what is within, but points to what is without. Even the eyes of the Son and the mother gather mysteri- ous, measureless strength from the Unseen Ineffable to which the incense rises. To me, for one, that which is exterior in this most celebrated painting of all time is more impressive than that which is inte- rior. If you look on the interior, there in the back- ground, and not noticeable at first, but filling all the ambient air behind the mother and the Son, is a cloud made up of innumerable blissful faces of super- natural beings in eternal youth. But when at Dres- den, day after day for a month, I studied the paint- ing, I always forgot these in the Central Presence to which the incense ascends; and I went away THE MICROSCOPE AND MATERIALISM. 77 always in a kind of trance. I know nothing in art that moves me as much as the Unseen Holy suggested before that picture. Will you follow me long enough to-day, my friends, to find out that this Madonna di San Sisto of Raphael, whose interior suggests an ineffable exterior, is a true analogue of the cell, God and the soul without, inert matter within, every movement of the lattei pointing to the former as its only adequate cause. Come near enough to this Madonna painting of Al- mighty God, and you will be convinced that it was the purpose of the Artist to make the interior sug- gest the ineffable exterior. [Applause.] When we study living matter with the highest powers of the microscope, and under the lead of the best original investigators, what does the latest sci- ence see ? 1. That nothing that lives is alive in every part. 2. That the substance of every living organism consists of three parts, (1.) Nutrient matter, or pabulum. (2.) Germinal matter, or bioplasm. (3.) Formed matter, or tissue, secretion and de- posit. As you stand on some murmurous shore of a tropi- cal sea, and pick up a beautifully colored shell, with its occupant yet in it, you easily perceive a difference between the living and the not-living part of that organism. No doubt the shell grows ; and yet, even while the animal bears it about upon his back, parts of the shell are as truly inanimate as they are when 78 BIOLOGY. afterward the painted wonder lies on the shelf of your cabinet. The shell grows, but not in every part, if it be of mature size. It increases its bulk chiefly by additions of matter at its edges and on its interior ; and these increments are made by a process of growth in the softer parts of the organism. We ourselves do not carry very large shells about upon our persons ; but the finger-tips are incased in deli- cate shells, of which by no means every particle is living. It once has been living ; but when you pare matter away from the back of a shell, or from the edge of the finger-nail, you find a very great distinc- tion between it and the quick flesh that is touched in a nerve. Four-fifths of the bulk of most organ- isms, animal and vegetable, is made up of formed matter. Only one-fifth is really alive. Into the centre of every organic cell there flows a current of nutrient matter, or pabulum ; and this may be wh.olly inorganic. It may be gas ; it may be a mineral compound ; it may be formed material from meats and fruits. In a cell [referring to a figure the speaker drew upon the blackboard] this nutrient matter is first transformed into living matter, and next the living matter is thrown off as formed mate- rial, to make the cell-wall. There are two currents in an organic cell, one flowing inward, and convey- ing nutrient matter with it ; the other outward, and bearing with it formed material. In the centre of the cell, by a process that cannot be explained by chemistry or any physical science, the nutrient matter is changed into living matter. THE MICROSCOPE AND MATERIALISM. 79 At the outer edge of the cell, formed material ac- cumulates, and is in some cases tissue, in some secre- tion, in some an osseous deposit. You have now, I hope, gentlemen, a distinct idea of the three kinds of matter which are to be found in all living organisms, pabulum or nutrient mat- ter, bioplasm or germinal matter, tissue or formed matter. There are no living organisms, vegetable or animal, that are not made up wholly of these three kinds of matter. It is only within a comparatively few years that we have been able to demonstrate under the micro- scope the existence of this distinction between the inner portions of 'the cell and the cell-wall. Why, Pro- fessor Huxley himself, down to 1853, considered the core of the cell as of little importance, and as having no peculiar office (" The Cell-Theory," Medical Chir. Rev., October, 1853). He has changed his opinion now on that point, as on several others concerning the cell-theory; and this fact is not to his discredit at all, because the microscopial study of living mat- ter is advancing so rapidly, that theories of 1850 and 1860 must often be abandoned. Professor Lionel Beale, who is an accepted authority as to this class of facts, however much his inferences, which I do not now present to you, may be objection- able to materialists, has made large use of a most important process of staining living tissue by a solu- tion of carmine in ammonia. That particular solution makes red whatever is living in a tissue, and does not color formed material. When you drench a tis- 80 BIOLOGY. sue in that solution of carmine in ammonia, you take it out with all the bioplasts stained red. This dis- covery has been a source of great advances in our knowledge of living tissues, so many of the ultimate parts of which are colorless, and as difficult as water to dissect optically. Fastening the highest magnify- ing power upon tissue prepared by this carmine pro- cess, what do we see ? 3. That germinal points, or bioplasts, are scattered so pervadingly through all organic structures that in no organism is there a space one five-hundredth of an inch square without a germinal point, or bioplast. We are sure to find, in any piece of living matter of that size, a bioplast that will color red in a solu- tion of carmine in ammonia. 4. That the germinal points, or bioplasts, are the only living matter. 5. That all formed matter has once been living matter, and so differs totally from inorganic matter. Every particle of your oyster-shell has once been living, growing matter, although it now is dead ; and yet, although inanimate, it is not inorganic. The shaggiest back of an oyster is matter of a totally different kind from that of the sand and clay and pebbles of which it makes a couch. Every particle of your muscle, nerve, or bone, has once been a bio- plast. I use the word " bioplasm " instead of " protoplasm," because it is a more definite term. It means always that germinal substance which has the power of trans- muting not-living into living matter, and of movement, THE MICKOSCOPE AND MATERIALISM. 81 of self-multiplication, and of producing formed mate- rial. " Protoplasm " is a word that has been applied to so many different styles of matter, that its indefinite- ness in present usage is a frequent source of confusion of thought in biological discussions. "Bioplasm" and "bioplasts" are words which "agree well with " biology," the accepted name of one of the greatest of the sciences. 6. That in the cell of an organic tissue the central portion is always a bioplast. 7. That nutrient matter for the bioplasts may con- sist of inorganic matter, or of formed matter. 8. That the bioplasts convert the nutrient into living matter, and the living into formed matter. 9. That the transmutation of the not-living into the living occurs in the bioplasts instantaneously. You will read in the older physiologies that all tissues are made up of cells ; and that is, of course, true ; but you must not suppose that it is the latest doctrine that the cell is the object of supreme inter- est in living tissue. The cell-wall is formed matter. The bioplast is the unit of growth. Bioplasm may exist without an enveloping wall. It may be a bio- plast, and not a cell. You may have expected me to say much about cells and the cellular theory ; and I am talking about bioplasts and the bioplasmic theory., The theory of bioplasts has superseded the theory of cells, or rather has given to the latter more definite- ness ; so that now we speak of cells with meanings derived from bioplasts. 10. That the cell-wall is formed matter, and not 82 BIOLOGY. alive, and not necessary to the work of transmuta* tion affected by the bioplast. 11. That bioplasts always arise from previous bio- plasts. 12. That they have the power of self-movement in any direction. 13. That they are capable of self-subdivision. 14. That each portion of a self-divided bioplast has the same powers as its parent bioplast. 15. That, when dead, bioplasts cannot be resusci- tated. Let us pause here for a moment to notice leisurely the confusion of thought of those who compare this transmutation of the not-living into the living, with the formation of a crystal. I can form a crystal and dissolve it, and form a crystal again out of the solu- tion. I can take two gases, and mix them, and pro- duce water ; and then, by an easy chemical process, I can change the water into these two gases ; and I can do this, back and forth, any number of times. But, gentlemen, if a bioplast is once dead, it cannot be resuscitated. Materialists talk about the process of life being a kind of " vital crystallization," what- ever that may mean. Be sure that you hold to clear ideas. Revere the orthodoxy of straight- forwardness. [Applause.] I want no philosophy, no platform, no pulpit, no dying-pillow, that does not rest on rendered reasons. Owen, who fifteen years ago wrote his great work on the " Anatomy of the Verte- brates," opposed in it Darwinism. He called that system as a whole a " guess endeavor." As others THE MICROSCOPE AND MATERIALISM. 83 were guessing,' he himself ventured to guess how the chasm between the not-living and the living might be bridged. Fifteen years ago, Dr. Lionel Beale did not stand as a lion in the way of such guessing. Owen put forward as a possible hypothesis that we shall find out some day that there is "molecular ma- chinery" that accounts for the phenomena of life. He thinks life in its simplest forms may perhaps be compared to the power a magnet exerts when it attracts certain particles to itself, and rejects others. It seems to have the power of selection. You might say that the magnet is feeding itself to see how it draws up to itself metallic dust. But the reply to all that is, You may magnetize and demagnetize your poor iron any number of times; but kill once the smallest living organism, and there is no remagnetiz- ing that. You may change your magnet from state to state, as you may change water to gases, and gases to water. You may braid and uribraid the threads of any inorganic whip-lash again and again, but once unbraid any living strands, and there is no braiding them together again forever. [Applause.] 16. That what the bioplasts effect in the transmu- tation of nutrient into living matter, and of the latter into formed material, chemistry can neither imitate nor explain. You must not allow yourself to fall into doubt as to the attitude of materialistic philosophers on this proposition. Who is Hackel ? He is a materialist. What is a materialist ? One who denies that there is any spiritual substance in the universe, and affirms 34 BIOLOGY. that matter is the only thing that exists. Can Hackel believe in the immortality of the soul ? It is a mild statement to say that he must be in grave doubt about it. Can Hackel believe in God ? He sa3"s in so many words that " there is no God but necessity." What does Hackel affirm concerning the ability of chemistry to bridge the colossal chasm between the living and the not-living ? That it is powerless to do so. That it is impotent to explain how inorganic is transmuted into organic matter. There is nothing in chemistry that can produce life. I asked a friend who lately took his degree in chem- istry at Gottingen what was thought there about the possibility of producing in the laboratory any par- allels to the action of the bioplasts. " We have given up," said he, " the idea that we can make things grow." " Most naturalists of our time," says Hackel, "are inclined to give up the attempt to account for the origin of life by natural causes " {His- tory of Creation, vol. i. p. 327). DuBois Reymond says, " It is futile to attempt by chemistry to bridge the chasm between the living and the not-living." In the bioplast occurs a change which is a sealed volume to the deepest physical science. Here is the not-living, and there is the living ; and instantane- ously the change of the former into the latter is effected. You look with your microscope upon thf3 centre of the bioplast, and what do you see? Little germinal points arising in the centre, and enlarging. The bioplast seems to boil bioplasts from its centre. It moves. It divides itself here before our eyes THE MICROSCOPE AND MATERIALISM. 85 [illustrating on the blackboard]. It throbs. You watch it under your microscope. The viscid mass is throwing out a promontory here and a promontory there, against gravitation, and contrary to all we know of chemical force. Suddenly there come great inlets here and there ; and soon your one bioplast has made of itself two bioplasts. Each of the new l:'o- plasts continues to receive nutriment ; and in its interior the mysterious transmutation of the not- living into' the living, and the preparation of formed material, go on again. Each will divide again ; and thus, little by little, we find formed matter woven at the edge of these creeping bioplasts into what ? Nerve, bone, muscle, artery. We find the not-living changed into the living, and formed material thrown off how ? So as to produce all the tissues of the body. Your microscope demonstrates that the little bio- plast has not only the throbbing movement, and power of self-multiplication, but of rectilinear move- ment also. Once this bioplast was here. . It threw off formed material ; and that formed material flows away behind it as your thread flows from your spin- dle. It flows away here as what ? As an incipi- ent nerve. But here another group of bioplasts spin, and a thread flows away as what ? As mus- cular fibre. There you weave your nerve, there your muscle, there your bone, and there your artery. The bioplasts move on ; they convert constantly the nutrient material into living matter, and throw off formed material; and whea at last this thread is 8ti BIOLOGY. wound, it has a contractile quality. When that is wound, it has the power of transmitting what we call the nervous force ; or, when the other is wound, it is the beginning of a bone : when this other, that is the commencement of an artery; or when this other, that is an incipient vein. We stand in awe before this action of the bioplasts as incoritrovertibly indicating intelligence somewhere. If you please, when the egg begins to quicken, must not the whole plan of your eagle, or of your lion, be kept in view from the first stroke of the shuttles ? It is something to weave a nerve, is it not ? It is enough to keep us on our knees to know that this little mass of colorless, viscid, and, under the micro- scope, apparently structureless matter, can weave osseous, muscular, and nervous fibres. But what if they can not only spin these different threads, but also weave them into warp and woof ? I am putting before you facts that are not controverted at all. Dr. Carpenter adopts these views in the latest edi- tion of his famous " Physiology." They are wholly authoritative statements of what goes on in every living tissue. Among materialists and anti-mate- rialists, as they walk over this high table-land of science, there is, I assure you, my friends, unanimity as to essential facts at present ; and by and by, per- haps, there will be unanimity as to inferences from facts. My belief is, that these facts should be put before all scholars, and not kept from the masses. [Applause.] The members of the legal, clerical, and literary professions, are trained in the logical method THE MICROSCOPE AND MATERIALISM. 87 as mercilessly as physicists are, and have a right to test reasoning, even where they cannot for themselves verify facts. When I stand here before lawyers, and before learned ministers, and before scholars better informed than I have had opportunity to be on these great themes, I feel, that, although not men of sci- ence, you have the right to test the reasoning of science. I am bringing to you here only what are conceded to be facts ; and you are competent to test the logic of the facts. It is the right of every mind to look into the logic of whatever touches immor- tality, the soul, and all that is highest in human endeavor. It is beyond contradiction that we know that these little points of structureless matter spin the threads, and weave the warp and woof, of organisms. But the bioplasts are of apparently just the same matter in the eagle and in the lion. You look into the centre of the egg of the eagle, and you will see a little mass of colorless, viscid substance, wholly structureless, so far as the highest power of the microscope can reveal its nature. But, when the egg begins to quicken, there is a different segmentation for each of the four great classes of animal forms. All eggs of the class of vertebrates, for instance, begin their development in the same way, and run on in the same way for a while ; but your radiates begin another way, and your articulates another. Examined by all the phy- sical tests known to science, bioplasm is the same, however, in your radiate, and articulate, and verte- brate. 88 BIOLOGY. Take the twittering swallows under the brown eaves, or your eagle on the cliff, or your lion in his lair : the egg, in each case, is the source of life ; and, when the quickening begins, there is nothing to be seen at the centre of the egg but this structureless, colorless, viscid bioplasm. Nevertheless, it divides and subdivides, and weaves, in the one case a lion, and in the other a swallow, and in the other an eagle ; and I affirm, in the name of all reason, that, from the very first, the plan of the whole organism must be in view somewhere. [Applause.] You know that when a temple is built, the plan of it is in the corner-stone. You know that when the weaver strikes his shuttle for the first time in the finest product of his art, the whole plan of the figures of the web is before him. We see here the bioplasts weaving their threads : we then see them co-ordinating threads and co-ordi- nating them so as, in the one case, to make your swal- low, in another case to make your eagle, in another case to make your lion, and in another case to make your man ; and why shall we not say, following the law, that every change must have an adequate cause, that somewhere and somehow there is here what all this mechanism needs, FORECAST ? [Applause.] What are men talking about when they attribute all this to merely "molecular machinery"? Gen- tlemen, it is out of date to say that "molecular arrangement" accounts for nerve and bone and tissue and artery and vein. It is getting too late to say that merely molecular arrangement accounts for the weaving of organic threads and the interweaving THE MICROSCOPE AND MATERIALISM. 89 of thread with thread. Will you consider what a complicated process is required to produce that hand of yours, or this eye, or this ear ? No doubt strange powers come into existence with the bioplast. Every bioplast is derived from a bioplast: there is your structureless machine, there a little glue-like, color- less matter ; and that is all there is. All life begins in the bioplast; and every bioplast known to man has been derived from a preceding bioplast. Out of what, then, came the first one ? [Applause.] Professor Huxley writes for " The Encyclopaedia Britannica " an elaborate article on biology ; and in the opening page of it he says, " The chasm between the not-living and the living the present state . of knowledge cannot bridge." Bring materialism to the edge of that chasm. Hackel calls the bioplasts plastids, but confesses that -they are mysteries. You find in them complicated processes going forward in apparently structureless matter. You see chemical law apparently set at defiance. The action of mate- rial forces appears to be reversed. Hackel, over and over, admits that we cannot produce life, and that we know of nothing but bioplasm that ever has produced it; but somewhere and somehow in the turmoil of a cooling planet, he thinks, forsooth, that there must have been a cell originated by fortuitous concourse of atoms, or spontaneous generation. Precisely there is the rock, gentlemen, on which both materialism and the radical form of the evolu- tion theory wreck themselves. There is, I willingly admit, a use, as well as an abuse, of the theory of 90 BIOLOGY. evolution. Perhaps Hackel and Huxley illustrate its abuse : Dana illustrates its use. But when I stand at the side of the chasm between the not-living and the living, I, for one, face to face with facts, and all theory put aside, feel as I felt at Dresden before that Ineffable Holy. I am in the presence of Almighty God. Every change must have an adequate cause ; and the organic living cell must have outside of it a God, and inside of it an immaterial principle, to be accounted for under the law of causation. Huxley, more cautious than Hackel, says that life is the cause of organization, and not organization the cause of life.. He has printed that opinion over and over (HuxLEY, Introduction to the Classification of Animals), and never taken it back. Well, if life is the cause of organization, probably it is safe to say the cause must exist before the effect. At least, that is Nature's logic. But, if life may exist before organi- zation, why not after it ? I affirm that the microscope begins to have visions of man's immortality. [Applause.] Some force forms the parts of an embryo. That which forms the parts is the cause of the form of the parts. The cause must exist before the effect. The force which forms the parts of an embryo, or of any living organism, exists, therefore, before the parts. Life is thus the cause of organization, and not or- ganization the cause of life. Life, therefore, exists before organization. If it exists before, it may after. THE MICROSCOPE AND MATERIALISM. 91 Summarizing, then, the latest science analytically, we see in living matter, 17. That the bioplasts' are a colorless, viscid, and apparently structureless substance, and the same in all animals. 18. That they throw off the formed material, so that it constitutes nerve, brain, muscle, artery, vein, bone, and all the mechanism of the organism. 19. That, although of the same chemical composi- tion in the eggs of the different animals, they weave tissues such as to produce the different plans of these animals. 20. That their action involves, therefore, both the formation of tissues and their growth according to the needs of the animal. '21. That it involves the production of all those structures, which, in animal and vegetable organisms, exhibit an adaptation of means to ends. 22. That it involves the co-ordination of tissues, secretions, and deposits in the organism. 23. That the plan of the whole organism is neces- sarily taken into view from the first stroke of the shuttles of the bioplasts that weave it. Tennyson sings with an emphasis of far-reaching thought : " Flower in the crannied wall, I pluck you out of the crannies ; Hold you here in my hand, Little flower, root and all. And if I could understand What you are, roots and all, and all in all, I should know what God and man is." 92 BIOLOGY. So we may say in the light of established science : Cells in the crannied flesh, I pluck you out of your crannies ; Hold you here in my hand, Little cells, throbs and all. And if I could understand What you are, throbs and all, and all in all, I should know what God and man is. V. I.OTZE, BEALE, AND HUXLEY ON LIVING TISSUES. THE FIFTIETH LECTURE IN THE BOSTON MONDAY LECTURESHIP, DELIVERED IN PARK- STREET CHURCH OCT. 30. " THIS seems to me to be as sure a teaching of science as the law of gravitation, that life proceeds from life, and nothing but life." SIR WILLIAM THOMSON, " Inaugural Address before the British Association," Nature, vol. iv. p. 269. "THE scientific mind can find no repose in the mere registration of sequences in nature. The further question obtrudes itself with resistless might, Whence came the sequences ? " PROFESSOR TYN- DALL Fragments of Science, p. 64. V. LOTZE, BEALE, AND HUXLEY ON LIVING TISSUES. PRELUDE ON CURRENT EVENTS. OUE, people are about entering on a presidential election in presence of all the other nations who are our guests. If a man's head, character, and career are each a truncated cone, lacking all the upper zones, he is no fit centennial candidate. This autumn's choice may be a rudder of the cause of civil-ser- vice reform in many a century to come. Both political parties assert that a great evil exists in the management of our party political patronage; and both call loudly for reform. Is it not the duty of thoughtful men in all the professions to see to it that gilded demagogism does not teach the people a lie in the smooth name of democ- racy? We are told that we must beware of an aristocracy of office-holders. We are assured that civil-service reform, such as both parties demand, may end in the creation of an office-holding class. Which is the worse, to have the great mass of the minor offices in politics the gift of the higher offices, 95 96 BIOLOGY. the upper and lower playing into each other's hands, like gift-enterprises and their patrons, or to have the rule established which Washington and Jefferson and Adams and Madison indorsed, that men shall neither be appointed nor removed on the principle that to political victors belong all political spoils, but shall be put into office for ability and availability, and kept there for good behavior? Let us take patronage from party, and give it to the people. Vast gift-enter- prises in politics are the subtlest threat in the American future. They call for attention from all scholars, although, perhaps, not for much discussion in the pulpit as yet. Ministers know much of which they do not speak in public. But, in our circles of influ- ence, it is assuredly in our power to turn public thought upon this enormous mischief in the cur- rent political life of a yet young nation. Our Woolseys, our Danas, our Tildens, and our Hayeses are united ; and shall educated men of all classes not unite the parlor, the platform, and the pulpit on this now strategic theme ? On civil-service reform, or any other great cause, give me a union of the parlor, the pulpit, and the platform, and I will insure a right attitude of the press; and give me a union of the parlor, the pulpit, the platform, and the press, and a right attitude of politics and of the police will follow. [Applause.] THE LECTUEE. At certain seasons, it was the custom of the Doges of Venice to symbolize the marriage of their city to the sea by casting a ring into the waves. Transfig- LIVING TISSUES. 97 tired marble, Venice stood at the head of the Adriatic, and made the howling, waste, immeasurable brine her servant. But her conquest was one of love, and of the natural superiority of the loftiest spiritual purposes. The sea murmured through her streets: she made it float her traffic. The Mediterranean flashed far and wide ; and far and wide Venice made ifc carry her thought, her enterprise, her beneficence. The modern Venice is religious science : the modern Mediterranean is physical science. Transfigured marble, the loftiest spiritual purposes on earth wherever they exist are the city. Far-flashing, immeasurable sea, a waste plain unless ridden by fleets of holy wills and beneficent enterprises this is physical science. That city purposes to cover that sea with such fleets. The sea and the city rejoice equally in their nuptials. On this occasion I wish, after the manner of the Doges of Venice, to .cast into that sea as a marriage-symbol the ring of the living cell. You will allow me to be elementary ; for we can- not approach the mysteries of the microscope with clearness of thought, without attention to some very humble details. ' Let me ask every gentleman here to look to-morrow morning at the unsharpened edge of his razor in order to form a distinct idea of what the one-thousandth part of an inch is. I suppose a thou- sand dull razor-edges put side by side might make an inch. Now, under our better present microscopes, how much breadth may such a razor's edge be made to ap- pear to have ? We can magnify the one-thousandth 98 BIOLOGY. part of an inch to the breadth of three fingers, or, exactly speaking, to the length of that line [referring to colored diagrams exhibited on the platform]. The one-thousandth part of an inch, or the dull edge of your razor magnified twenty-eight hundred times linear, is as thick as your three fingers (Beale's " Microscope "). When you have a dot only the one four-thousandth part of an inch in diameter, that is, a dot so small that four like it could lie abreast of each other on your razor's edge, and when you magnify that dot four thousand times, it is of precisely the size of this dot, or as large as an English shilling. We are going into a labyrinth, my friends ; and I wish you to know what opportunities for exact observation the latest science furnishes. You will hear the assertion, that, under the highest powers of the microscope, protoplasm or bioplasm is apparently structureless. I beg you to look at your razor's edge in order that when you examine bio- plasm with a power that magnifies twenty-eight hun- dred times in a linear direction, and know that a line the thousandth part of an inch thick, under that power would be three fingers broad, you may be tolerably certain, that, if there is any structure in the bioplasm that carmine can stain, you will see it. If you are told that this transparent, colorless, and apparently structureless substance is molecular ma- chinery, and that it has purely physical arrange- ments, which not only weave bone, muscle, artery, vein, and nerve, but can co-ordinate tissue with tissue, and produce wholly by machinery a plant or LIVING TISSUES. 99 animal, you must remember that under your micro- scope, which gives your razor's edge the breadth of your three fingers, all bioplasm appears to be abso- lutely structureless. Ariadne, you know, had a clew, a little thread, which she received from Vulcan, and which she gave to Theseus, by the aid of which he safely penetrated the famous labyrinth of Minotaurus. Cultivated men are now thoughtfully walking into a labyrinth far more complicated than that. Philosophy, not for the first time, but with better weapons than ever before, is entering the border-land between the physical and the spiritual, a labyrinth on the border-ground of the two kingdoms of mind and matter ; a border on which will be fought the Waterloos of philosophy for an hundred years to come ; a border which will be contested as the Rhine never was ; a border where soul and matter, God and man, meet; a border where the questions of immortality, of freedom of the will, of moral responsibility, and even of the Divine Exist- ence itself, will be discussed by the iron lips of the best intellectual artillery on the globe. Now we have in this labyrinth an Ariadne clew, and what is it? Why, simply the axiomatic iruth, that every change must have a sufficient cause. Until the Seven Stars set in the East, men will not give up their belief, that, whenever a change occurs, there must be an adequate cause for it. We are to behold changes occurring in matter, that, under the best micro- scope, is apparently structureless. We are to behold harmoniously concurrent changes occurring, that 100 BIOLOGY. when taken together amount to the building up of your hand and nerves and veins, and heart and eai and eye and braift ; and not only to that, but to the co-ordinating and adjusting the wants of each one of these to the wants of each of the others. ExacTa ovfipaxoi name, as the Greeks used to say (all the allies of each) : this is the most wonderful fact in the arrangements of the parts of any living organism. Not only the formation of ^ach part, but the co-ordi- nation of part with part in organic structures, is to be explained, without violence to self-evident truth. We stand before structureless bioplasm, and see it weav- ing organisms ; and we are to adhere, in spite of all theories, to the Ariadne clew, that every cause is to be interpreted by its effects, and that all changes must have adequate causes. [Applause.] Before I come to the discussion of the process of carmine staining of living tissues, it is important that I should sketch briefly the history of the cell-theory in physiology. What right have I to know any thing about phy- siological and microscopical research ? How should a minister, who, if born to his calling, is, as many think, neither man nor woman, but something be- tween the one and the other, dare to know any thing about the microscope ? I notice that the New- York Nation a journal which I respect for its culture, but which occasionally takes a merely library view of hu- man affairs says that it looked over the catalogues of our theological seminaries lately, and did not find, forsooth, that any thing important is known in these LIVING TISSUES. 101 professional schools about the recent progress of phi- losophy or physiology. [Applause.] It found by an attentive examination of printed documents,. about as good evidence concerning the theological instruc- tion in our seminaries as tombstones in cemeteries are concerning the characters of those who lie beneath them [laughter], it discovered, after an exhaustive and astute examination of catalogues, .that ministers have no acquaintance whatever with philosophy in its latest forms. It did not ascertain that at Prince- ton Theological Seminary that mossy, mediaeval school there is a professorship of the relations be- tween religious and other science. At Andover a little less mossy, possibly, as you think, but yet suffi- ciently mediaeval there is a lectureship on that sub- ject; and at some near date there may be established there too, God willing, a professorship on that very theme. Unless a man is equipped in what little of logic and metaphysics a Sir William Hamilton and a John Stuart Mill can teach him, he is not adequately prepared for the Aristotelian lecture-room of Profes- sor Park. What shall we say of the thousand sides of the culture of such a man as Schleiermacher, or Julius Miiller ? Go to Germany ; and what name at this instant leads the philosophy of the most learned land on the globe ? What philosopher is read with the most en- thusiasm by students of religious and philosophical science in Germany and England and Scotland ? Hermann Lotze. Who is he ? I am acutely sorry that you have heard of Herbert Spencer, whose star 102 BIOLOGY. touches the Western pines, and know nothing of Hermann Lotze, whose star is in the ascendant. The most renowned of the modern German philosophers, he is a great physiologist, as well as a great meta- physician (see art. on " Hermann Lotze " in Mind, July number, 1876). He is the one that is teaching all Germany he taught me, among others to look at this border-land with all the. reverence with which we bow down before Almighty God. Who is Her- mann Lotze ? A man recognized everywhere as thoroughly acquainted with physiology, as Herbert Spencer is not, especially with the latest research. A scholar enriched by the massive spoils of all the German metaphysical systems, and made opulent by all physiological knowledge, and building up with these two sides the colossal arch of a new system, with many a Christian truth at its summit. Although Hermann Lotze, as professor in the philosophical fac- ulty at Gottingen, and one of the higher advisers of the court of Hanover, does not put himself for- ward as an apologist for any one particular school of religious opinion, he is everj^where regarded as a supporter of that form of Christian philosophy which is now absorbing all established science. He is a theist of the most pronounced kind. As to evolu- tion, his positions are nearly those of Dana. He is full of scorn for the idea that the Power that put into us personality does not itself possess personality. Carlyle, toward the end of his famous history of Frederic the Great, says there was one form of scepticism which the all-doubting Frederic could not LIVING TISSUES. 103 endure. " Atheism, truly, he never could abide: to him, as to all of us," says Carlyle, " it was flatly inconceivable that intellect, moral emotion, could have been put into him by an Entity that had none of its own " (CARLYLE, Frederic the Great, book 23, chap. 14). This inconceivability is the central prop- osition of Hermann Lotze's philosophy, the most bril- liant, the most audacious, the most abreast of the time, of all the philosophies of the globe. You say I am a re-actionary evangelical, and that I stand here endeavoring to hold back the wheels of progress. I find that I have been publicly compared in grave print to one of the persecutors of Galileo ; not in so many words, but in thought. The truth is, that, in- stead of being re-actionary, this Boston Lectureship is abreast of the latest German investigation. I am proud to say that I have some acquaintance with Hermann Lotze, and that I regard him as the rising, as Germany regards Herbert Spencer as the setting, star in philosophy. [Applause.] Now, gentlemen, to be brief, the cell-theory and its history may be summarized in twelve proposi- tions : 1. In 1838 the microscope was sufficiently per- fected to furnish a solid basis for the observation of facts. 2. Schleiden founded the cell-theory, but restricted it to plants. With him the cell consisted of a vesicle and semi-fluid contents. 3. Schwann added to Schleiden's two elements a third, the nucleus. 104 BIOLOGY. Why am I running over this history ? Sir William Hamilton never would discuss any great theme with- out looking back across the record of its discussion in order to obtain the trend of opinion through a long range. Without historical retrospect, we are easily deceived by temporary swirls of opinion. We have yet another clew besides the one of cause and effect : it is the unanimity of experts. A fair state ment of the history of the cell-theory will show that the points that are central in the modern form of that theory were established thirty-five years ago, and that there has been unanimity of conclusion as to all the more essential facts. (1.) " This semi-fluid substance," says Schwann, " possesses a capacity to occasion the production of cells." (2.) " When this takes place, the nucleus usually appears to be formed first, and then the cells around it." You will -not fail to remember the distinction be- tween living matter and formed matter, and that nutrient matter is transmuted by the bioplast into living matter, and then thrown off as formed mate- rial. But in the cell are nuclei and nucleoli ; and the question of questions in the central part of the cell- theory is, whether the bioplasm existed before the nucleus, or the nucleus before the bioplasm. Schwann gave as his opinion on that point thirty years ago, that the nucleus appears to be formed by the semi-fluid substance in the cell. (3.) " The cell, when once formed, continues to grow LIVING TISSUES. 105 ly its own individual powers, but is at the same time directed by the influence of the entire organism in such a manner as the design of the whole requires. This is the fundamental phenomenon of all animal and vegeta* lie "life:' These words of Schwann are more than thirty-five years old, and express the central truth of the bio- plasmic theory of to-day. (4.) " The generation of the cells takes place ill a fluid, or structureless substance, which we may call cell-germinating material (" Zellenkeimstoff," SCHWANN, Reports of the Sydenham Society, 1847, p. 39). So much for the cellular theory up to 1840. 4. In 1841 Dr. Henle adopted the cell-theory of Schleiden and Schwann, but pointed out the multi- plication of cells by division and budding. 5. In the same year Dr. Martin Barry showed the reproduction of cells by division of the parent nucleus. 6. In 1842 and 1846 J. Goodsir confirmed Barry's proposition, and maintained that " the secretion within a primitive cell is always situated between the nucleus and the cell-wall, and would appear to be a product of the nucleus ("Anatom. Memoirs," vol. ii., Trans, of the Royal Soc.- of Edinburgh, 1845, p. 417). 7. In 1845 Nageli showed the comparative unim- portance of the cell-wall. 8. In 1851 Alexander Brown proved that the cell wall is non-essential. 106 BIOLOGY. 9. In 1857 Leydig first decidedly declared as estab- lished science that the cell-wall is non-essential. 10. In 1861 Max Schultze observed that many of the most important kind of cells are destitute of a cell-membrane. He defined the cell as " a little mass of protoplasm inside of which lies a nucleus. The nucleus as well as the protoplasm are products by partition of similar components of another cell." In 1854 Max Schultze had described certain non- nucleated cells, and doubts were thrown on the uni- versality of the nucleus. 11. In 1856 Lord S. G. Osborne discovered the process of the carmine staining of vegetable and animal tissues. 12. By aid of this process Professor Lionel Beale, between 1856 and 1866, so far advanced the knowl- edge of living tissues, that now his bioplasmic theory at once supplements and supersedes the cellular the- ory (TYSON, JAMES, The Cell Doctrine; DRYSDALE, DR. JOHN, Protoplasmic Theory of Life : London, 1874, pp. 12-108). Are you shy of accepting the assertion that the cellular theory, of which you have heard so much, has been superseded by the protoplasmic or bioplas- mic theory? Here is Hackel himself, who says, " The protoplasm or sarcode theory that is, that this albuminous material is the original active sub- stratum of all vital phenomena may perhaps be considered one of the greatest achievements of mod- ern biology, and one of the richest in results " (HACKEL, Quar. Mic. Jour., 1869, p. 223). LIVING TISSUES. 107 While we abandon to-day the cell-theory in its old form, we retain it in the new form, if we please to put into the doctrine of the cell the idea that the cell-wall is not essential, but that what is essential is the central viscid, transparent bioplasm, or living, germinal matter. Gentlemen, I am not a bold man, and therefore I have adopted as an inflexible rule, not to trust any man's authority as to facts in science without advice to do so from his determined opponents. It would have been enough for me to have had, as I did have, the authority of James Dana for trust in Professor Lionel Beale's statements of facts concerning living tissues. One of the most distinguished theological scholars in this country, whom, out of reverence, I will not name, was afflicted nervously, and threatened with loss of sight. Physicians in this learned city, and in Paris, again and again prescribed for him, but fruitlessly. Dr. Lionel Beale in London was recommended to him ; and one hour of examination of the case was followed by a single prescription, which was effectual, and has been so year after year through a quarter of a century. [Applause.] In one of my groves near Lake George there is a beech which I call " The Bioplast Beech," so delicious were x the hours I spent there this summer with Hermann Lotze and Beale and Dr. Carpenter and Dana and Darwin, and a score of other books of science. m Beale's celebrated Lec- tures before the Royal College of Physicians in 1861, on living tissues, and his discoveries concerning bio- plasm, were preceded by a work on " The Micro 108 BIOLOGY. scope," which you had better not buy yet, simply because it is going into a fifth edition. It is a bulky, elaborate book, full of plates; and I have seen it worn ragged in my library, as I call the Athenaeum yonder, with its one hundred thousand volumes, ifcs one hundred magazines, and one hundred newspapers and excellent professional collections. It is a signifi- cant sign when a book of science is worn ragged in a library used by the Sumners and Wilsons and Emersons, and other men who are not likely to waste time on rubbish. Beale's volumes I find worn eloquently black, and Bastian's hardly stained. Some small philosopher may tell you that Beale is no authority, and that many of his propositions are in dispute. One of them is ; but it is a proposition that I am not using at all, namely, that the nerves end in loops. Even on that obscure point, opinion is turning more and more to Beale's side. But when a costly work on the microscope, with elaborate plates filled with the results of original research upon living tissues, goes in a few years into a fifth edition, and its author is commonly pronounced to be the first microscopist of the English-speaking world, and when his facts agree with those of Frey, the greatest authority on the same subject in the German-speaking world, even a timid man may read such a book without any great tremor. In examining authorities in science, I seek first to ascertain on what points there is an agreement of the best English and the best German publications ; but that is not enough. We must have the authority of his rivals for trusting any man as an expert. LIVING TISSUES. 109 What do the opponents of Beale's conclusions say of his facts ? 1. Dr. John Drysdale of Edinburgh is the author of a work on " The Protoplasmic Theory of Life ; " and in 1874 was president of the Liverpool Micro- scopical Society. He has given head and heart to the doctrine that bioplasm is a form of matter sui generis ; and that its activity is an outcome of trans- muted physical force, or the result ef "irritability under stimulation." He opposes vehemently Beale's conclusion that the actions of bioplasm require to account for them a higher than physical force. But of Beale he sayy, " A master-mind appeared in 1860, we are glad to say, in the person of our countryman, Dr. Lionel Beale of London. He had for years devoted himself with unwearied zeal to microscopial research on the animal tissues, using the highest magnifying powers as- soon as available, and had attained to an almost unrivalled skill, and had discovered various new methods of the preparing objects, which enabled him to analyze the structures of the textures to a point not hitherto reached by anatomists. In 1860 he wrote those ' Lectures on the Structure of the Sim- ple Tissues of the Human Body,' which were de- livered before the Royal College of Physicians in 1861, and which are destined, I believe, to make an epoch in the progress of physiological science. Since then, Dr. 'Beale has gone on completing and expand- ing his system, and filling up the details, and has car- ried i ou t in pathology to an extent of completeness 110 BIOLOGY. and consistency marvellous for the short time as yet given, and as being the work of one man ; a fact which in itself shows he has seized 011 one great and central principle, which enables him to bring into practical harmony a vast number of scattered obser- vations both of his own and of others. Beale's proto- plasmic theory now takes the place of the cell-theory. General opinion is now in accord as respects the facts with Dr. Beale's statements on the nucleus in 1860 " (DBYSDALE, DR. JOHN, Prot. Theor. of Life : London, 1874. Pp. 41, 68, 103). 2. Professor Alexander Bain makes Beale's facts the basis of the central chapter in his work on " Mind and Body," one of those tempting but disappoint- ing royal roads to knowledge called " The Interna- tional Scientific Series." Bain, as you know, teaches that only matter exists in the universe, but that matter rightly defined is " a double-faced somewhat, having a spiritual and a physical side." That is the nearest approach to a definition that either he or Tyndall has given. In this marvellous compound unit there coinhere in one substratum extension and the absence of extension, form and the absence of form, activity and the absence of activity, all the perfectly contradictory attributes of matter and mind. .1 suppose that it may be asserted that mind is co- extensive with matter ; but never, until we can believe that a thing can be and not be at the same time and in the same sense, will men who love clear ideas adopt Tyndall's and Bain's self-contradictory defi- nition of matter. But even Bain leans confidently LIVING TISSUES. Ill on Beale whenever he speaks of microscopical phy- siology. In arguments before juries, Webster often asked his opponents, "Why do you not meet the case?" Remember that famous phrase of his, if you hear the materialistic theory of evolution defended. What is the case against that theory ? It consists of the irreconcilable opposition of the attributes of matter and mind, of the unfathomed gulf between the not- living and the living, of the fact that spontaneous generation has never been shown to be a possibility, and of the missing links between men and apes. Let these points be met fairly, and the case is met. Not until the chasm between the not-living and the liv- ing is filled up by observation, not until that distant time when you shall have found some merely physical link between the inorganic and organic, can you say that the theory of evolution has been proven by induc- tion. A theory of evolution has been proved, but not the theory. The public mind is immensely confused by this one word of many meanings. A. theory of evo- lution Dana holds, but not the theory. The position of this Lectureship is, that there is a use and an abuse of the theory of evolution, and that Hiickel illustrates the abuse, and Dana the use. I hold a theory of evolution, but not the theory. What do I mean by the theory of evolution ? Precisely what Huxley means when he says in so many words (Encyc. Brit., ninth ed. art. " Biology "), that " if the theory of evolution is true, the living must have arisen from the not-living." 112 BIOLOGY. 3. You want Huxley himself in support of Beale, and you shall have him. The most important propo- sitions that I shall present to you on this occasion I hold here in my hands ; and they are all in the lan- guage, though not in the order of statement, wfiich Professor Huxley uses. I do not know any late lead- ing work in Germany on microscopical physiology that does not mention Beale again and again. When I was in Jena, I bought Ranke's great work on physi- ology, in spite of the fact that I was a minister who had no right to know any thing on* this subject. I brought it with me across the Atlantic; and, on opening it the other day, I found Beale cited, and his propositions put into the foreground of the latest Ger- man statements of the cell-theory. You know that, Schleiden and S.chwann being Germans, the German physiologists, from patriotic and various other mo- tives, cling to the nomenclature of these great men ; but they honor Beale. When I turn to Huxley, how- ever, in his article on biology, in the latest edition of the twenty-one volumes of " The Encyclopedia Britannica," I am able to select from various parts of his discussion these seventeen propositions, every one of which was first made sure by the microscopic research of Lionel Beale ; but Beale is not once men- tioned in this article by Huxley. 1. "It is certain that in the animal, as in the plant, neither cell-wall nor nucleus are essential elements of the cell." That conclusion is the result of a Waterloo battle, if you please. Although the proposition is so quietly LIVING TISSUES. 113 stated, Huxley knows what proof there is behind it, and lays it down before the world in this, his most scholarly production on biology, and his latest, as established science. 2. " Bodies which are unquestionably the equiva- lents of cells true morphological units are some- times mere masses of protoplasm, devoid alike of cell, wall, and nucleus." 3. " For the whole living world, then, it results that the morphological unit, the primary and funda- mental form of life, is merely an individual mass of protoplasm." 4. " In this no further structure is discernible." I beg you to notice the accord of all these proposi- tions with those which, in the last lecture, I put before you as the result of Lionel Beale's investiga- tion. 5. " The nucleus, the primordial utricle, the cen- tral fluid, and the cell-wall, are no essential constitu- ents of the morphological unit, but represent results of its metamorphosis." We saw how bioplasm throws off formed material, and how the nucleus is the result of the action of the bioplasm, and not bioplasm the result of the nucleus ; and here you find Professor Huxley asserting that the nucleus is a result of the metamorphosis of bioplasm. 6. " Though the nucleus is very constant among animal cells, it is not universally present." 7. " The nucleus rarely undergoes any considera- able modification." 8. '* The structures characteristic of the tissues are 114 BIOLOGY. formed at the expense of the more superficial proto- plasm of the cells." The structures characteristic of the tissues ! What a smooth phrase that is, for the infinity of design in the human constitution, bone, nerve, artery, muscle, and all that makes a plant a plant, or an animal an animal ! 9. " When nucleated cells divide, the division of the nucleus, as a rule, precedes that of the whole cell." 10. " Independent living forms may present but little advance from an individual mass of proto- plasm." 11. " All the higher forms of life are aggregates of such morphological units or cells, variously modi- fied" (HUXLEY, PROFESSOR T. H., Encyc. Brit., ninth edition, Biology, pp. 681, 682). 12. " The protoplasm of the germ may not under- go division and conversion into a cell aggregate ; but various parts of its outer and inner substance may be metamorphosed directly into those physically and chemically different materials which constitute the body of the adult." 13. " The germ may undergo division, and be con- verted into an aggregate of cells, which give rise to the tissues by undergoing a metamorphosis of the same kind as that to which the whole body is sub- jected in the preceding case " (Ibid., p. 682). 14. " Sustentative, generative, and correlative func- tions in the lower forms of life are exerted indiffer- ently, or nearly so, by all parts of the protoplasmic body." LIVING TISSUES. 115 15. " The like is true of the functions of the body of even the highest organisms, so long as they are in the condition of the nucleated cell " (Ibid., 685). 16. " Generation by fission and gemmation are not confined to the simplest forms of life. Both modes are common, not only among plants, but among animals of considerable complexity." " Throughout almost the whole series of living beings, we find agamo genesis, or not-sexual generation" Eggs, in the case of drones among bees, develop without impregnation" (Ibid., 686, 687). [After a pause, Mr. Cook proceeded in a lower voice] , When the topic of the origin of the life of our Lord on the earth is approached from the point of view of the microscope, some men, who know not what the Holy of holies in physical and religious science is, say that we have no example of the origin of life without two parents. There are numberless such examples. " When Castellet," says Alfred Rus- sel Wallace, Darwin's coadjutor, " informed Reaumur that he had reared perfect silk-worms from the eggs laid by a virgin moth, the answer was, ' Ex nihilo nihil fit,' and the fact was disbelieved. It was con- trary to one of the widest and best-established laws of Nature ; yet it is now universally admitted to be true, and the supposed law ceases to be universal " (WALLACE, ALFRED RUSSEL^ Miracles and Modern Spiritualism, p. 38 : London, 1875). "Among our common honey-bees," says Hacke] (History of Creation, vol. i. p. 197), " a male indi 116 BIOLOGY. vidual, a drone, arises out of the eggs of the queen, if the egg has not been fructified ; a female, a queen, or working-bee, if the egg has been fructified." Take up your Mivart, your Lyell, your Owen, and you will read this same important fact which Huxley here asserts, when he says that the law that perfect individuals may be virginally born extends to the higher forms of life. I am in the presence of Almighty God; and yet when a great soul like the tender spirit of our sainted Lincoln, in his early days, with little knowledge, but with great thought- fulness, was troubled by this difficulty, and almost thrown into infidelity by not knowing that the law that there must be two parents is not universal I am willing to allude, even in such a presence as this, to the latest science concerning 'miraculous concep- tion. [Sensation.] 17. " The phenomena which living things present have no parallel in the mineral world " (Ibid., p. 684). What now, gentlemen, is the conclusion of Hux- ley from all these propositions that seem to point one way? You notice that his facts are Beale's. You find an explicit agreement here of Beale, of Huxley, of Bain, of Drysdale, of Ranke, and I might say of Carpenter, of Dalton, and of scores of recent specialists. The facts being established, the supreme question as to their interpretation is, Life or mechanism, which f Beale says life : Beale says a principle that cannot be explained by any form of merely physical force. But Huxley says, and be amazed all men who hold LIVING TISSUES. 117 the Ariadne clew, " A mass of living protoplasm is simply a molecular machine of great complexity, the total results of the working of which, or its vital phenomena, depend, on the one hand, on its con- struction, and, on the other, upon the energy sup- plied to it : and to speak of ' vitality ' as any thing but the name of a series of operations is as if one should talk of the horologity of a clock." [Sensa- tion.] You are shocked at this proposition, and therefore I have not spoken in vain. We will con- sider next week this astounding non sequitur. If Hermann Lotze, the first philosopher of Germany, were on this platform to-day, he, in the name of the axiom that every change must have a sufficient cause, would thus and thus [tearing the paper] tear into shreds the materialistic or mechanical theory of the origin of living tissues and of the soul. [Applause.] VI. LIFE, OR MECHANISM, WHICH? THE FIFTY-FIRST LECTURE IN THE BOSTON MONDAY LECTURESHIP, DELIVERED IN THE PARK- STREET CHURCH NOV. 6. " Tu cuncta superno Ducis ab exemplo, pulchrum pulcherimus ipse Mundum mente gerens, similique imagine formans." BOETHIUS, De ConsoL, 9. *' WHAT time this world's great workmaister did cast To make all things such as we now behold, It seems that He before His eyes had plast A goodly patterne, to whose perfect mould He fashioned them as comely as He could, That now so fair and seemly they appear; As naught may be amended anywhere. That wondrous patterne, wheresoeer it be, "Whether in Earth, laid up in secret store, Or else in Heaven, that no man may it see With sinful eyes, for fear it to deflore, Is perfect beauty." SPENSER. USlflSI iit-~s* 1 i I" f I- g- * " JL f *; ** fc 6 a '.A / < s'* L :V' g" = I f * E ' ."^ -'JA'-'^ VTr ~^'V(7^~\ ^:*Sl^Ei:v*. 1 fslilt irl|-l 4 r i|* hlfl'l ! d V X x / /A triMi^s^ 'i - s * i c- s = I " r ^1 3 <3, 03 VI. LIFE, OR MECHANISM WHICH? ONE day the poet Goethe, when in his advanced age, was riding home to Weimar with his friend Eck- ermann, and conversing on the immortality of the soul. They turned by Tiefurt into the Weimar road, and stopped at a spot, where, like other travellers, I have often meditated on Goethe's career ; and they had from that outlook a majestic view of the setting sun. The great poet and philosopher remained for many minutes in perfect silence, and at last said with mystic but tremorless emphasis, "Untergehend sogar ist's immer dieselbige Sonne. Setting, neverthe- less the sun is always the same sun. I am fully convinced that our spirit is a being of a nature quite indestructible, and that its activity continues from eternity to eternity." This man knew all philoso- phies and all art materialism, realism, pantheism, the wildest scepticism, and, I fear, not a little of the most infamous sensualism ; but his was at least a free mind and a modern one. Here, however, was his conclusion concerning the possibility of the exist- ence of the soul in separation from the body : Set- ting, nevertheless the soul is always the same soul. 121 122 BIOLOGY. (GOETHE, Conversations with Eckermann, Trans, by J. Oxenford, Bohn's ed., p. 84.) Will you enter to- day, my friends, into Goethe's brain at that instant, and remain there during this discussion, lynx-eyed, I care not how thoroughly so, but earnest? It is incontrovertible that we, too, a little while ago, were not in the world, and that we, too, a little while hence, shall be here no longer. The sun hastes to the west as fast at noon as in the last moment before sunset. New lands in our age can be discovered only in old lands. Schliemann, on the Plain of Troy, has shown us a city of great antiquity ; and he has done so by studying an old land beneath its soil. We are reaching the bottom of the Roman forum ; we understand, as never -before, the environment of the Acropolis, because we are looking with the spade for new lands in the old lands. If a new continent has been discovered anywhere in the last twenty-five years, it has been in the ancient continent of living tissues. We are to enter on that strange country; we draw near to it across turbulent seas ; and I think, that, as the Santa Maria ploughs tossing across the waves toward the West, we already begin to see carved wood occasionally, symbol of life behind the watery horizon. Already, as we approach this new continent, do we not find now .and then a poor floating spray of red berries ? Are these little birds not of a kind always cradled on the land ? Are not the shapes of the very clouds, as the sun goes down, some indication that we shall at last reach the firm, LIFE, OR MECHANISM WHICH? 123 happy shore ? Is there not breathed upon us out of the undescried but nearing coast an odor as of spices and balm, and frankincense and myrrh, and dates and palms a fragrant atmosphere that comes in the twilight wind off the continent of an unseen Holy? WB have not landed on the new coast yet ; but they who walk late on the deck of the Santa Maria have seen a light rise and fall ahead of us. We are to look to-day at the thickening signs of the approach of a whole new continent in philosophy that lies hardly out of sight. It will be a land assuredly of firm hope of immortality, and therefore a land of inspiration such as no spiced breath of the tropics ever breathed into the physical nostrils. Our souls are sick from lack of the more heavily fragrant airs out of the blessed isles of certainties as to what is behind the veil. It is already certain that we are to discover a new land, and that the inhabitant of it is life, not mechanism. [Applause.] Two positions of much importance have been proved, I hope, in lectures preceding this : first, the explicit and entire agreement of Beale and Huxley as to all the central facts concerning living tissues, and this in spite of the disagreement of these author- ities on other points; and, secondly, the crescent unanimity of experts for thirty-five years as to those same facts. The two initial propositions which I think I have established are, that rival experts agree, and that they have agreed for more than a quarter of a century, on the facts fundamental in our discussions here. Let us, now, summarize our 124 BIOLOGY. knowledge of bioplasm, remembering, as we do so, that we have the authority of Huxley, of Carpen- ter, of Frey, of Dalton, of Beale, of Dry sd ale, of Bain, of Ranke, and of Kolliker. You will per- mit me, for the sake of clearness of thought, to num- ber the points of our positive knowledge in biological science. Bioplasm, otherwise called protoplasm, or germinal matter, 1. Is transparent ; 2. Colorless ; 3. Viscid, or glue-like ; 4. Under the highest microscopical powers is ap- parently structureless ; 5. Exhibits these characters at every period of its existence ; 6. Shows itself, under all the tests known to phy- sical science, to be the same in the animal and, in the plant, in the sponge and in the brain ; 7. Is capable of throbbing movements, or of advan- cing one portion of itself beyond another portion ; 8. Is capable of rectilinear movements ; 9. Executes so many movements, that the same mass probably never twice in its life assumes the same form ; 10. May exist in masses less than one one-hundred- thousandth of an inch, or as large as one two-hun- dredth of an inch in diameter, but, as constituting the nuclei of fully-formed cells, is usually found in masses from one six-thousandth to one three-thou- sandth of an inch in diameter ; LIFE, OB MECHANISM WHICH? 125 11. Absorbs nutrient matter, which may be either inorganic or formed material ; 12. Instantaneously changes this dead matter into living matter ; 13. Does so by a process which no human science can imitate or explain ; 14. Throws off formed material to constitute a cell-wall ; 15. Develops within itself a nucleus, and within that a nucleolus ; 16. May exist and move, however, without cell-wall or nucleus ; 17. Spins the threads of nerves, arteries, veins, bones, and all the mechanism of the system, by throw- ing off formed material ; 18. Weaves these threads into the infinity of co- ordinated designs in the plant and animal ; 19. Can by no possible outer environment be made to produce nerve if it should produce muscle, or mus- cle if it should produce nerve, and so of every other tissue, secretion, and deposit ; 20. Is so thickly scattered through the tissues, that there is scarcely a space one-five-hundredth of an inch in size without its portion of it ; 21. Is capable of self-subdivision ; 22. In its self-subdivided parts has all its original powers ; 23. Always arises from preceding bioplasm ; 24. Constitutes about one-fifth of the bulk of living bodies ; 25. Is the sole agency by which every kind of 126 BIOLOGY. living thing is made, or, so far as known, has been made or ever will be made ; 26. When it divides itself, is preceded sometimes in that act by the division of its nucleus, and some- times not ; 27. May throw off a portion of itself without a nu- cleus, and develop a nucleus in the detached portion. 28. Forms nuclei and nucleoli, which appear to differ sexually, as it is only after the intermingling of these in certain cases that multiplication takes place ; 29. Does not transform the nucleus, or nucleolus, directly into formed material ; 30. Transforms it into ordinary bioplasm, and thus into formed material ; 31. When recently dead, will take a carmine stain from the solution of carmine in ammonia, as formed material will not ; 32. At its death is resolved into fibrine, albumen, fatty matter, and salts ; 33. Forms thus the spontaneously coagulable sub- stance on the diffusion of which through the body the rigidity of the frame after death depends ; 34. Is in direct continuity with formed material while the latter is in process of formation. Such is the most interesting, by far, of all the objects known to physical science. Carmine staining, the great discovery of 1856 and 1860, must take place immediately after the death of the bioplasm, or it cannot be successfully executed. Many unskilful manipulators in the laboratory, and LIFE, OB MECHANISM WHICH? 127 amateurs without number, have endeavored to stain the tissue of plants and animals, and have waited too long after its death, and have failed. Sometimes, too, they have not rightly compounded the materials for their carmine solution, a distinct receipt for which you will find in Beale's work on the microscope. When the process of staining is performed soon after the death of a tissue, all germinal points or bioplasts in it come out with a red color; but the formed mate- rial is not stained at all. [From this point on, Mr. Cook referred to large colored diagrams hung on the wall back of the plat- form.] These eloquent representations of stained tissues are exact reproductions of Dr. Beale's famous illus- trations, and were made by Mr. Stone, an artist of the Studio building, who spoke admiringly of Beale's illustrations the instant he saw them. Here is the whole cell with its wall, bioplast, and nucleus. (See plate I, fig. 1.) Two currents exist in every cell, one flowing inward in the direction of this arrow, and the other passing out from the centre of the bioplast in the direction of this arrow. Every par- ticle of matter that can be found in a living being is of one of three kinds, nutrient matter, living matter, or formed matter. Nutrient matter comes through the wall of the cell, and, entering into the bioplasm, is there transformed into living matter. You had better not take a cell, however, as the type of the elementary part in the living tissue. If you are to be abroast of the very latest investigations 128 BIOLOGY. concerning the cell-theory, you will take a naked mass of bioplasm like this as the elementary part. (See plate I, fig. 2.) As I showed you in my last lecture, on both Huxley's and Beale's authority, it is not essential at all that there be a wall of formed material around the naked mass of bioplasm. It is not essential at all there be a nucleus within it. That is the advance we have made since 1838. Nevertheless, if you are to understand the action of these currents, it is well to keep in mind the cell- wall. Nutrient material may pass through the cell- wall in animal tissues just as sap passes through the intercellular substance in vegetable tissues. When once in the bioplast, the nutrient matter is seized on by this living matter, which you see colored with carmine in all these illustrations, and nuclei are de- veloped in the bioplast, and nucleoli within the nuclei. The bioplast produces the nucleus, and not the nucleus the bioplast. It throws off formed mate- rial around its quivering edges, and thus forms a cell- wall. In that wall the oldest formed material is on the outside, and the next oldest just within, and so on to the inner part of the wall, which is in physical continuity with the bioplasm. Movement is going on all the while in any naked mass of bioplasm. Here is a bioplast, naked, color- less, structureless matter; and it moves so that it takes these many shapes in five seconds, and these many other shapes in one minute. (See plate I, figs. 2 and 3.) Here we must hold fast to the Ariadne clew,- that every change must have an LITE, OR MECHANISM WHICH'? 129 adequate cause. We come here to fathomless de- sign ; but let us enter by slow stages on these sublimities of research. Here is a young tendon, and here is an old tendon. The living matter is red, as you notice, and runs in lines through the tendon ; and yet the tendon is narrow. But in the old tendon the formed mate- rial is more abundant than in the new ; and yet all the formed material which makes an increased thick- ness in the old has been thrown off by these bioplasts. They have here thrown off formed material so as to make a tendon, which is, as you know, a structure very different from muscular fibre and from nervous fibre. Here is one set of bioplasts that is intended to weave a tendon, here one that is to weave a mus- cular fibre, and here one that is to weave a nervous fibre. There is no possible external influence that can make them exchange offices with each other. You have here a tendon, there a muscle, there a nerve, all woven by these bioplasts. We know that they are thus woven, and that every change must have an adequate cause. Adhere, gentlemen, to that axiomatic truth, though the heavens fall. From your bioplast spindles flows off formed matter here a miracle of muscle, there a miracle of tendon, there a miracle of nerve. The cellular integument is not unworthy of no- tice ; for that shows us the career of its bioplasts from the first to the last. You have here the skin that covers one of the papilla on the tongue 130 BIOLOGY. of a frog. (See plate IT, fig. 1.) That infinite- ly delicate membrane that covers the little sensi- tive points on the tongue is here magnified. You notice that the bioplasts on the lower or inner side are young, and that there is not much formed mate- rial around them. There are no distinct cells in the younger part of a tissue. This intercellular sub- stance is not formed into the ring-shapes which you see further on, where the tissue is older. As the bioplasts grow, the formed material about them in- creases in thickness, until it becomes so thick that the nutrient matter will not go through the cell-walls. Then the bioplasts languish ; they grow smaller and smaller, and at last the cells in which the bioplasts are dead scale off. When dead never before, ex- cept by violence they drop away; but their places are supplied by soldiers that take position in the gap of the lines, and build according to the pattern of the design of the whole organization. You have here (see plate II, fig. 2) colored illustrations of several stages of the growth of a cell its youth, its adoles- cence, its middle life, its advancing age, its extreme old age. Remember that a mass of bioplasm has a tendency to assume a more or less spheroidal form. But it changes itself in the course of a minute into all the protean shapes indicated here, first by the black, then by the unbroken line, then by the broken red line, and divides and subdivides its edges, until at last it throws off this portion of itself, which has the same powers with its parent. (See plate I, fig. 3.) LIFE, OR MECHANISM WHICH? 131 We find under our astounded gaze nothing but color- less, glue-like, transparent matter; and yet we see it performing all these miracles of as many differ- ent sorts as there are different sorts of tissues to be woven. In a single nerve there is an unspeakable com- plexity; but come to something a little more complex. Let us stand with open eyes before this revelation of Almighty God. Here is a nerve wound spirally around another fibre. (See plate II, fig. 5.) How is it made to twine about its trellis-work ? Why, when that nerve begins to be formed in a living organism, these bioplasts in it are near each other. They begin to throw off formed material. The object is to weave so as to produce this delicate nerve that is coiled spirally around the other fibre. The bioplasts were shoulder to shoulder, and they begin to separate. They weave, and they carry a spiral nerve around that other fibre with perfect precision. Adhere to your clear ideas. Materialists say that all this is done by molecular machinery. Do they know what they are talking about when they use that phrase? They say that here are "infinitely complicated chemical properties." They say that all these things occur merely by " a transmutation of physical forces." Do they know what they are saying when they utter propositions of that sort? The tendency of the latest science begins to throw into derision all materialism of this kind. The Germans have a proverb which says, " The clear is the true ; " and ascertained truth can be made clear. Will you 132 BIOLOGY. make it clear that " molecular machinery," however complicated, can achieve these results? There a tendon, there a muscle, and there a nerve, are woven, and all by the same machinery ? The same causes ought to produce the same results. There is an al- most measureless difference in your results ; but in all ascertainable physical qualities this bioplasm is the same thing in every tissue. [Applause.] Marvels, however, have but just begun. We might pause long on these earlier stages in the formation of tissues ; but there is one word or fact we ought to bow down before, if we have eyes. (See plate III.) It is co-ordination, the adjustment of part to part in a living organism. A vast number of tissues are woven side by side ; and their co-ordination is the supreme miracle. It is more than much, my friends, to weave a nerve, a muscle, a vein. But here we have a mass of thin tissues from a tree-frog, and you have here muscles and veins and nerves interlacing with each other intricately. Not only do the mystic bioplasts know enough to coil one fibre around another fibre spirally, but they weave the whole complexity of the tissues together. How ? So that there is no clash- ing among the multitudinous wheels of the living organism. In the naked bioplast we see changes going on ; and the question is, What is an adequate cause of these changes? Life, or mechanism which ? In the different threads that are woven by the bioplasts we must ask : Life, or mechanism which ? But here, before this transfigured represen- tation of the co-ordination of tissue with tissue, the LIFE, OR MECHANISM WHICH? 133 question answers itself: Life, or mechanism which? [Applause.] Here is the last white and mottled bird that flew to us out of the tall Tribune tower ; and softly folded under its wing are these words concerning Darwin from Thomas Carlyle at his own fireside in London : " So-called literary and scientific classes in England now proudly give themselves to protoplasm, origin of species, and the like, to prove that God did not build the universe. I have known three genera- tions of the Darwins, grandfather, father, and son, atheists all." [I do not call Darwin an atheist; but this testimony is very significant.] " The brother of the present famous naturalist, a quiet man, who lives not far from here, told me that among his grandfather's effects he found a seal engraven with this legend, ' Omnia ex conchis ' ( 4 every thing from a clam-shell '). I saw the naturalist not many months ago ; told him that I had read his ' Origin of the Species,' and other books ; that he had by no means satisfied me that men were descended from monkeys, but had gone far toward persuading me that he and his so-called scientific brethren had brought the pres- ent generation of Englishmen very near to mon- keys. A good sort of man is this Darwin, and well meaning, but with very little intellect. Ah ! it is a sad and terrible thing to see nigh a whole generation of men and women professing to be cultivated, looking around in a purblind fashion, and finding no God in this universe. I suppose it is a re-action from the reign of cant and hollow pre- 134 BIOLOGY. tence, professing to believe what in fact they do not believe. And this is what we have got : all things from frog-spawn ; the gospel of dirt the order of the day. The older I grow, and I now stand upon the brink of eternity, the more comes back to me the sen- tence in the catechism, which I learned when a child, and the fuller and deeper its meaning becomes, - 4 What is the great end of man ? To glorify God, and enjoy him forever.' No gospel of dirt, teaching that men have descended from frogs through monkeys, can ever set that aside " (Daily Tribune, Nov. 4, 1876. Extract from a letter from Carlyle published in Scotland, and quoted in the London Times). Will haughty Boston, will the colleges of New England, will tender and thoughtful souls every- where, listen to Thomas Carlyle as he stands upcn the brink of eternity ? [Applause.] VII. DOES DEATH END ALL? INVOLUTION AND EVOLUTION. THE FIFTY-SECOND LECTURE IN THE BOSTON MONDAY LEC- TURESHIP, DELIVERED IN TREMONT TEMPLE NOV. 13. "DIE Nothwendigkeit fiir zrwei unvergleichbare Kreise von Erscheinungen zunachst zwei gesonderte Erklarungsgriinde zu verlangen, verbot uns jeden Versuch, aus "Wirkungen matericller Stoffe, so fern sie materiel sind, das innere Leben als einen selbst- verstandlichen Erfolg ableiten zuwollen." HERMANN LOTZE, Mi' krokosmus, I., 186. " ATTENTION to those philosophical questions which underlie all Science, is ag rare as it is needful." PROFESSOR T. H. HUXLEY, Contemporary Review, Nov., 1871, p. 443. VII. DOES DEATH END ALL? INVOLUTION AND EVOLUTION. IF the Greeks had possessed the microscope, they would in all probability never have been thrown into debate over the famous question of their philosophy, whether the relation of the soul to the body is that of harmony to a harp, or of a rower to a boat (PLATO, Phcedon). According to the former of these two theories, the music must cease when the harp is broken : according to the latter, the rower may sur- vive, although his boat is destroyed. He may be completely safe, even when his frail vessel, splintered by all the surges and lightnings, rots on the tusks of the reefs, or sinks in the fathomless waste, or dis- solves to be blown about the world by the howling seas. In the one case, death does, in the other it does not, end all. Dim as was to the Greeks of Pericles' day the whole field which science has entered with the microscope for the first time in the last fifty years, all their greatest poets and philosophers held that the relation of the soul to the body is that of the rower to a boat. This was the common metaphor as men conversed on this theme under the Acropolis two 137 138 BIOLOGY. thousand years ago. Without Christian prejudices, Greek tragedy is full of the dying faith of Socrates. JEschylus, with his eyes of dew and lightning fixed on the fact of immortality, strikes the central chord of his harp ; and one terrific thrum of it 1 often in still days hear across twenty centuries : "Blood for blood, .and blow for blow: Thou shalt reap as thou didst sow." What if Aristotle and Plato and ^Eschylus had had Beale's and Helmholtz's and Dana's eyes in the study of living tissues? When modern investigation asserts that life directs the movements of bioplasm, it does not deny at all that currents of physical and chemical forces are floating around the bioplast boat. It asserts simply that the oars are in the hands of life. You will not understand me to deny that the rower in the boat is aided by the currents beneath him, by the winds around him, and by his own weight and the inertia of his vessel. Nevertheless, between the rower and the boat on the one hand, and the inert log that may be floating beside him on the other, there is plainly all the difference that exists betwen the living and the not-living. Your rower takes advantage of all the forces around him ; he can give them new direc- tions ; he presides over them. He can sail against the wind ; he can row against the current ; he gov- erns the forces that wheel in mysterious complex cycles above and around and beneath him ; he makes them his own, and so is a living thing on the water. DOES DEATH END ALL? 189 Just so, life uses the physical and chemioal forces at work in living organisms. There ought to stand before every. discussion defi- nitions, just as before one of Shakspeare's dramas there stand the names of the dramatis persons. I know into what an intricate tropical forest of thought I am entering ; and I am fully aware that the chief personage here is one whose character never has been successfully described in a definition. What is life ? Thousands and thousands of definitions have been attempted of that term ; and we have as yet in words no satisfactory statement of what life means ; but we all understand very well what the thing is. Herbert Spencer defines life as " The definite com- bination of heterogeneous changes, both simultane- ous and successive, in correspondence with external co-existences and sequences." This definition has been very much admired; and I suppose you all understand what it means. The latest science finds this definition defective, because it does not limit the changes of which it speaks to one specifically consti- tuted substance now known as bioplasm (DiiYSDALE, Protoplasmic Theory of Life : London, 1874. P. 176). I know what I venture ; but, as my definition of life, I must give these words : The power which directs the movements of bioplasm. I beg you to notice that I do not say that life is the force which moves bioplasm, although, as a loose definition, the latter phrase would do. Bioplasm is moved in part by physical and chemi- cal forces, though not chiefly. Chemical and physi- cal forces, however, are not called living in the best 140 BIOLOGY. philosophy. To say that life is the force that moves bioplasm is to say that all the power there is in the river on which the boat and rower float originates in the rower. I say nothing of that sort. The force of the river belongs to the river ; that of the oars, to the rower. The power which causes your skiff to move against the current, or which catches the wind in the sail, is that of its living occupant, who directs other forces, and puts forth force of Ms own. Never- theless, in the motion of your little boat, there is a combination of the power of the rower and the power of the currents. So, in the motion of your bioplast, there is the agency of purely physical and chemical forces, together with the co-ordinating agency or directing power which weaves the tissues, and inter- weaves tissue with tissue into designs marvellous be- yond comment, and which cannot be accounted for at all by any thing simply chemical or physical. I affirm, therefore, that life may be denned provision- ally as the rower in the boat, or the power which directs the movements of germinal matter. To give a fuller definition, I may say that life is the invisible, individual, co-ordinating cause directing the forces in- volved in the production and activity of any organism possessing individuality. Of course the vitality of a cell differs from the life of the whole organism of which it forms a part ; for many cells may die and the life of the organism to which they belong not be affected. Important distinctions exist between vital- ity, life, and soul. A single cell may have vitality ; the individual organism to which the cell belongs DOES DEATH END ALL? 141 has life ; and that organism, if possessed of self-con- sciousness, and of the power of self-direction, has soul. To assert Lotze's doctrine of an immaterial principle as the cause of form in organisms is not to assert the theory of vital force. When I woke after my first night in Venice, which I had entered by the full moon, my earliest act was to ascend the tower of St. Mark's, and obtain a gen- eral view of the city by the rising sun. Before we discuss our central question, " Does death end all ? " let us take a large view of this theme, as if from St. Mark's tower. Our rising sun here is the refulgent certainty that every change must have an adequate cause. When our national historian wrote the first volume of his history of the United States, it was not known that the Mound-builders had left elaborate traces of themselves in the spacious West. George Bancroft, therefore, asserted that the Mississippi valley was without any remains of human works. But since he wrote that first volume of his, we have discovered the most intricate kinds of mounds in the prairies ; and it is now universally conceded that there was a race of Mound-builders, and that the Mississippi valley is full of their works. On the prairie near Adrian, Michigan, for example, there is a night-hawk traced by mounds on the earth ; and the spread of its wings is two or three hundred feet. Over against him on the ver.dant, ancient acres, the mounds present the figure of a warrior with a bal- anced spear. Bancroft knew something of these mounds at the time he wrote his book ; but he said 142 BIOLOGY. they were produced by geological action. In the Drift period these peculiar formations had been made by the complex swirls of the water and icebergs. If a man should undertake to hold to that theory now, and affirm that the Drift period formed these mounds, what would you say to him ? There is your night- hawk. Is it not possible for a complexity of geologi- cal forces gravitation, chemical action, and the turmoil of a cooling planet, of which Strauss, Vir- chow, Hackel, and Huxley make so much to trace on the prairie a night-hawk ?' Is it not, at least, pos- sible that your night-hawk might have been traced there by the movements of matter having in it the power and potency of all life ? May it not be that thus were produced your savage and his balanced spear ? You would say that a man holding such views ought to be sent to the lunatic wards. No may be is good for any thing in science, unless it may be an is. But how about your actually living night- hawk, flying there above the prairie in the edge of the evening ? How about your savage there miracu- lously alive, and poising his spear ? Although you believe this rude earthwork tracery of the night- hawk and the savage cannot possibly have originated in any complexity of merely physical forces in a cool- ing planet, you will allow a man, if he is full enough of scientific authority, to come before you, and seri- ously puzzle you, as Strauss, Huxley, Virchow, and Hackel attempt to do, with the assertion that the bioplast which stands at the head of the develop- ment of your living night-hawk, and which had in DOES DEATH END ALL? 143 it all that has followed of life on this globe came into existence in some Drift period by a fortuitous concourse of atoms. You ought for this to be sent to the lunatic wards. [Applause.] The reply to all reasoning of that sort is simply this, that merely physical forces do not act so. As Agassiz used to say, " The products of merely physical forces are the same in all quarters of the globe, and during all time known to man ; but the products of the forces that produce life are varied under the same circumstances. Between two such sets of forces there can be no causal or genetic connection " (AGASSiz, Essay on Classification). The results of the forces that pro- duce organisms differ in different periods, and there- fore we cannot account for them by these invisible, blind, mechanical laws. If, on the prairie, the figure of your night-hawk was not traced by a complication of these forces, assuredly, in the name of all clear ideas, the first bioplast that came into existence, and the bioplasts that weave the night-hawk and sav- age, were not constructed by any such complication of physical forces, acting without design or choice. [Applause.] Does death end all ? The answer to that question depends on the reply to another: Is life the cause of organization, or organization the cause of life ? Is the relation of the soul to the body that of harmony to the harp, or that of the harper to the harp ? What are the strategic points in the discussion of the origin of life ? 1. Tyndall, Huxley, Bain, Drysdale, and Spencer 144 BIOLOGY. himself, all admit that the actions of bioplasts cannot be explained by merely chemical properties or forces. If I succeed in showing you that this concession is made by the materialistic school, you will be relieved from much distress cast on you by popular irrespon- sible scribblers and declaimers. In November, 1875, Professor Tyndall quoted and adopted these words of DuBois Reymond, " It is absolutely and forever inconceivable that a number of carbon, hydrogen, nitrogen, and oxygen atoms should be otherwise than indifferent as to their own position and motion, past, present, or future." [Applause.] (See Preface to TYNDALL'S Fragments of Science. Also his article in The Fortnightly Review, November, 1875, p. 585. Also Dr. CHAKLES ELAM'S art. on " Automatism and Evolution," Contemporary Review^ September, 1876, p. 539.) Tyndall adds in his own words, that " the continuity between molecular processes and the phe- nomena of consciousness is the rock upon which ma- terialism must inevitably split whenever it pretends to be a complete philosophy of the human mind." That is Tyndall, if you please, in 1875, writing a preface to the Belfast address, which needed much explanation after its errors had been searchingly pointed out by general public discussion. There is inertia everywhere in all that we call matter. What is inertia ? The incapacity to origi- nate force or motion. Inertia is a property of the matter in bioplasm as surely as of that in any other part of the universe. This is the substance of Du- Bois Rcymond's famous concession, that it is forever DOES DEATH END ALL? 145 inconceivable that a mass of physical atoms past, present, or to come should be outside the range of the law of inertia. "There is," says Faraday (Cor- relation and Conservation of Forces, p. 24), " one wonderful condition of matter, perhaps its only true indication, namely, inertia." Even Herbert Spencer, who would be very glad to prove the opposite, says in his " Biology " (vol. i. p. 182), " The proximate chemical principles, or chemical units, albumen, fibrine, gelatine, or the hypothetical proteine substance, cannot possess the property of forming the endlessly varied structures of animal forms." This is Herbert Spencer in 1864. " Nor," continues he, " can any such power be given to the cell as a morphological unit, even if it had a right to that title." It is the bioplast that is the morphological unit, and not the cell. " Therefore," concludes Spencer, " there is no alternative but to suppose that the chemical units combine into units immensely more complex than themselves, 'and that, in each organism, the physiological units produced by this further compounding of highly compound atoms have a more or less distinctive character. We must conclude, that, in each case, some slight differ- ence of composition in these units, leading to some slight difference in their natural play of forces, pro- duces a difference in the form which the aggregate of them assumes." Spencer's " Biology " is now an out- grown book, so rapid has been the progress of bio- logical knowledge since its publication. But the reply to this precious theory is, that invo- 146 BIOLOGY. lution and evolution are a fixed equation. If these multiplex molecules and their merely mechanical actions, which Spencer says build the body, have no life behind them, you will get no life out of them. [Applause.] If the smaller units out of which he makes up his larger units have no life in them, you will obtain from the latter only what was in the former. Let us be forever sure that the law of the persistence of force requires that evolution and involution should be equal to each other. You will get out of your molecu- lar units what you put into them, and nothing more. But, according to Spencer himself, the chemi- cal and physical forces and properties of atoms can- not build an organism. Larger molecular masses made up of these units, he says, may do so. Not unless there can be more evolved from, than is in- volved in, these units. If involution and evolution are not an eternal equation, there may be an effect without a cause. You cannot evolve any thing which you have not first involved. Huxley, Spencer, Bain, and Drysdale, 'all admit, that, if you make up your compounds from all the ascertained molecular activi- ties, you involve nothing that will account for the weaving of these complex tissues. That adirission is fatal to their further pretence, that a combination can be made which will evolve what has not been involved. [Applause.] But Dr. Drysdale, who is a candid Scotch writer, makes a most distinct admission, that, even after we have built up these complicated molecular units, the DOES DEATH END ALL? 147 matter in them must be inert. Hear the authority of a man who opposes Beale's opinion, that the action of the bioplasts cannot be accounted for except by a higher than physical cause, and who seriously under- takes, while admitting Beale's facts, to persuade the world that this matter in the bioplasts is of an infi- nitely peculiar sort, and that all it needs is " stimu- lus " to set it at work in all this miraculous weaving and inweaving and co-ordination of tissues. Dr. Drysdale says in so many words (^Protoplasmic Theory of Life, p. 199), " No matter how complex the protoplasmic molecule may be, its atoms are still nothing but matter, and must share its properties for good or evil^ and among the rest inertia. Hence it can- not change its state of motion nor rest without the influ- ence of some force from without. True spontaneity of movement is, therefore, just as impossible to it as to what we call dead matter. ... So we are compelled to admit the existence of an exciting cause in the form of some force from without to give the initial impulse in all vital actions. This is the " What ? The soul ? We expect him to say that ; but what he says is, "This is the stimulus," whatever that may mean. [Laughter.] It is very surprising, in view of the school of thought to which Professor Alexander Bain of Aber- deen belongs, that, in his work on " The Senses and the Intellect " (p. 64), he should go so far as to up- hold the doctrine of the spontaneity of vital actions, and to maintain that a spontaneous energy resides in the nerve-centres which gives them the power of initi- 148 BIOLOGY. ating molecular movements without any antecedent sen- sation from without, or emotion from within, or any antecedent state of feeling whatever, or any stimulus extraneous to the moving apparatus itself. This fact of spontaneous energy he regards as the essential prelude to voluntary power. So much, gentlemen, for the latest concessions of materialists ; but I hold in my hand here the best, or certainly the freshest, book in the world on the " Cellular Theory ; " and what are its opening words ? All medical students in this audience will know that Professor Heinrich Frey of Zurich is a great authority on the cell-theory, and that this book of his has had an enormous sale between the Alps and the Baltic. Frey's work on " Microscopic Technology " is placed side by side with Strieker's " Histology " in the read- ing recommended to the two hundred young men in the Harvard Medical School yonder ; but fresher than either of these books is this new volume pub- lished by Frey in 1875. Rufus Choate, as you remember, used sometimes to lay out a course of study in the classics perfectly parallel with that of the young men in Harvard Uni- versity, and, in his breathless profession, would keep pace with them year after year. What if a student of religious science, who has no right to know any thing about physiology, should look at the text-books in use in Harvard Medical School on physiology and other topics, and by this means, and by considerable conversation with men of science, assuring himsel f that he is not reading rubbish, and with a profes- DOES DEATH END ALL? 149 sional medical library at his command, should follow side by side the investigations those highly privi- leged young men are pursuing yonder, and occasion- ally stand with them in their dissecting-rooms? I know at least one student of religious science who does precisely that, and is fascinated with his work. Biology is now quite as interesting as the' classics. In your Johns Hopkins University in Baltimoie, studies are elective ; and about ninety out of oie hundred of the students there elect biology as one of their subjects. Professor Frey of Zurich, in this work, which is hardly dry from the press, prints, face to face with the world, these as his very first sentences : " A deep abyss separates the inorganic from the organic, the inanimate from the animate. The rock-crystal on the one side, vegetable and animal on the other : how infi- nitely different the image ! Is it, then, possible to bridge Over this gulf? We answer, Not at the pres- ent time." [Applause.] We turn on in this volume, and find that reference is made to the theory that vital transformations are much like crystallization, and that then these remarks are made, with a very apparent and not undeserved sly smile : " Schwann, the founder of modern histology, taught, What the crystal is in regard to the inor- ganic, that the cell is in the sphere of life. As the former shoots from the mother lye, so, also, in a suit- able animal fluid, are developed the constituents cf the cell, nucleolus, nucleus, covering, and cell con- tents. This view was embraced during many yejr* 9 150 BIOLOGY. it explained every thing so conveniently. This uas, however, over-hasty. The cell arises from the cell. A spontaneous origin does not occur " (FEEY, PRO- FESSOR HEINRICH, Compendium of Histology, Twenty- four lectures. Translated by Dr. G. R. Cutter. New York: Putnam's Sons, 1876. Pp. 1, 14). All this is in accord with what Huxley says in his article in " The Encyclopedia Britannica," " There is no par- allel between the actions of matter in the mineral world and in living tissues." 2. After the unanimity of experts, there is no higher authority on any scientific doctrine than to find it taught in standard text-bo.oks in schools of the first rank ; but you may easily ascertain that the very latest standard text-books oppose the mechanical or materialistic theory of life. Dr. Tyson's book on " The Cell Doctrine " is in use side by side with Frey in your Harvard Medical School ; but Tyson opens with diagrams from Beale, and closes with Beale ; and where is there any thing in him that is regarded as invulnerable, that he did not obtain from Beale ? Over and over, in the lat- ter half of the book, as he closes the history of the thirty-nine years since the cell-theory was promul- gated, he cites Beale ; and, in spite of all the sneers from Huxley and others about " aquosity and horo- logity," he sums up established science thus, " We believe that the proper shaping, arrangement, and func- tion of these elementary parts, is not a process identical or analogous to crystallization, taking place through merely physical laws, but that there is a presiding DOES DEATH END ALL? 151 agency which controls such arrangement to a definite end." [Applause.] (TYSON, DR. JAMES, The Cell Doctrine, pp. 112 and- 113. Lindsay and Blakiston, 1870.) This is a statement out of a text-book men- tioned officially in the catalogue of Harvard Uni- versity as in use in the best medical school of your nation ; and here is the best German book ; and I have just read to you out of the best Scotch book ; and Beale's is the best English book ; and they are all explicitly agreed in the assertion, that it is life, not mechanism, which weaves us and all things that live. [Applause.] 3. I affirm that we have under the microscope ocu- lar demonstration that it is life which causes organi- zation, and not organization which causes life. What is the first thing that appears in the formation of an organization ? A mass of germinal matter that has life, but no organization. You know what a. naked bioplast is, a little speck of glue-like matter, trans- parent, colorless, and, under the highest powers of the microscope and every other test known to man, show- ing no organization, but yet capable of multiplex movements, all these in a minute [referring to colored diagrams on the platform]. " We fail," Huxley says, " to detect any organization in the bio- plasmic mass', " but there are movements in it and life. We see the movements: they must have a cause. The cause of the movements must exist before the movements. The life is there before organization. But, if life may exist before organization, it may do so after it, or outside it. 152 BIOLOGY. If, according to custom in some rude games oi sailors, we were to put a man in a canvas bag, and throw him in the bag upon this platform ; and if that bag were to begin to cast out a promontory here, and a promontory there, and assume scores of shapes, and move to and fro, and pick up, now this object, and now that, we should have no unfit representation of a portion of the movements of a naked bioplasmic mass. [Laughter.] Your astonishing bag here picks up this chair, which cannot move of itself; and, to make the parallel complete, it must have the power of absorbing this inanimate object, and of changing it into something just like itself, or alive. Suddenly this man in the bag may, if the parallel is to be made perfect, throw off a small sack from the bag, and that instantly begins to move on this platform : it forthwith commences to pick up lifeless matter, and to transform it into living matter like itself. It, too, throws off other little sacks, which go through the same motions again. We should say that sacks of that sort had very complicated machinery in them. [Laughter and applause.] But this is by no means the chief marvel. You know, gentlemen, that in India it is a play of the children and of grown men to make up the -form of an elephant by stacking themselves together,, two men making a leg of the elephant, six or eight his body, three or four his head, one or two his proboscis. You see in the pictures from India representations of elephants, made up, as you notice when you look at them sharply, wholly of human forms. Now, to DOES DEATH END ALL? 153 carry out this parallel, we must have our first canvas bag transform itself into many canvas bags, and then all of them build themselves up, after this Indian fashion, into the elephant, the lion, the giraffe, or the palm-tree, the date, or the pomegranate ; and these must live. They must grow. Some of the miracu- lous sacks will drop away from day to day; but n. : .w ones must take their places, and fill out the design had in view at the first. Of course, the part assigned to the man in the proboscis of an elephant thus built must be very different from that assigned to a man in the leg. If an elephant is to be made up in that way, the men who form his back must have a very different position from the men who form the tusks. There must be very peculiar activities put forth by each man in each part of your elephant. So, al- though our bioplasm is, to all appearance, the same thing when it weaves a tendon, and when it weaves a muscle, and when it weaves a nerve, its activities are very different. Surely the invisible molecular machinery must be very complicated indeed ; for it makes a tendon here, a muscle here, or a nerve here. According to Spencer and this astute materialistic school, the bioplasts are nothing but molecular ma- chinery, started off by " stimulus " into all this weaving, as the spark starts off the gunpowder into explosion. We say, that, if that is so, the molecular machinery must be more than exceedingly complex ; for not only must it really be very different when it weaves a nerve from what it is when it weaves a muscle; but, and this is the point on which to fas- 154 BIOLOGY. ten supreme attention, when we run back the examination of all our co-ordinated tissues, we find that assuredly all this molecular machinery must in some way have existed, or have been provided for, in the first little transparent, colorless, and apparently structureless bioplast which began to weave your ele- phant or your man, your pomegranate or your palm. [Applause.] A rather complicated kind of molecu- lar machinery to be crowded into a space so small ! [Laughter.] The acorn which hangs above the nest of your eagle has in it bioplasts that differ under the micro- scope in no particular from the little mass of bioplasm in the eagle's egg. Your bioplasm that weaves your oak is, to all human investigation, the same thing with the speck of bioplasm which weaves your eagle. Gentlemen, there is no inductive evidence of the ex- istence of this mechanism. We may say, therefore, that, in the present state of knowledge, we cannot prove that molecular mechanism, acted upon by phy- sical and chemical forces, is the sole source of organ- ization. 4. Matter in living tissues is directed, controlled, arranged, so as to subserve the most varied and com- plex purposes. Only matter and mind exist in the universe. Matter in living tissues must therefore be arranged either by matter or by mind. No material properties or forces are known to be capable of producing the arrangements which exist in living tissue. DOES DEATH END ALL? 155 In the present state of knowledge, these arrange- ments must be referred to mind or life as their source. 5. Bioplasm exhibits peculiar actions found no- where in not-living matter. It exhibits different actions in every different ani- mal and vegetable tissue. For each class of these peculiar actions, there must be a peculiar cause. That cause must be either matter or mind. But the cause has qualities which cannot, without self-contradiction, be attributed to inert matter. It must therefore exist in the life, or an immaterial element of the organization. 6. It is plain, that, before the matter which forms the tissues has entered the organization, the plan of the tissues is involved in the earliest bioplasts. There is forecast involved, therefore, in the action of the bioplasts. " Bioplasm prepares for far-off events," says Professor Lionel Beale over and over. Forecast is not an attribute of matter, but of mind. An immaterial element exists, therefore, in living organisms. 7. There is a great fact known to us more cer- tainly than the existence of matter : it is the unity of consciousness. I know that I exist, and that I am one. Hermann Lotze's supreme argument against materialism is the unity of consciousness. I know that I am J, and not you ; and I know this to my very finger-tips. That finger is a part of my organism, not of yours. To the last extremity of every nerve, I know that I am one. The unity of consciousness 156 BIOLOGY. is a fact known to us by much better evidence than the existence of matter. I am a natural realist in philosophy, if I may use a technical term : I believe in the existence of both matter and mind. There are two things in the universe ; but I know the exist- ence of mind better than I know the existence of matter. Sometimes in dreams we fall down preci- pices, and awake, and find that the gnarled savage rocks had no existence. But we touched them ; we felt them ; we were bruised by them. Who knows but that some day we may wake, and find that all matter is merely a dream ? Even if we do that, it will yet remain true that I am I. There is more sup- Dort for idealism than for materialism; but there is fro sufficient support for either. If we are to rever- ence all, and not merely a fraction, of the list of axiomatic or self-evident truths, if we are not to play fast and loose with the intuitions which are the eternal tests of verity, we shall believe in the exist- ence of both matter and mind. Hermann Lotze holds that the unity of consciousness is a fact absolutely incontrovertible and absolately inexplicable on the theory that our bodies are woven by a complex of physical arrangements and physical forces, having no co-ordinating presiding power over them all. 1 know that there is a co-ordinating presiding power somewhere in me. I am I. I am one. Whence the sense of a unity of consciousness, if we are made up, according to Spencer's idea, or Huxley's, of infinitely multiplex molecular mechanisms? We have the idea of a presiding power that makes each man one DOES DEATH END ALL. 157 individuality from top to toe. How do we get it? It must have a sufficient cause. To this hour, no man has explained the unity of consciousness in con- sistency with the mechanical theory of life. [Ap- plause.] (See LOTZE'S greatest work, Mikrokosmus, Leipzig, 1869. Vol. i. book 3, chap. 1.) There is not in Germany to-day, except Hacke 1 , a single professor of real eminence who teaches philo- sophical materialism. (See art. on " Philosophy and Science in Germany," Princeton Review, October, 1876, pp. 752-755.) The eloquent Michelet, the life-long friend and disciple of Hegel, lectured at Berlin Uni- versity in the spring of 1874 in defence of the Hege- lian philosophy as a system. Out of nearly three thousand students he obtained only nine hearers. Helmholtz, the renowned physicist of Berlin, has come out through physiology and mathematical physics into metaphysics ; and- his views in the latter science are pretty nearly those of Immanuel Kant. Wundt, the greatest of the physiologists of Heidel- berg University, which leads Germany in medical science, has made for years a profound study of the inter-relation of matter and mind; and he rejects materialism as in conflict with self-evident, axiomatic truth. Hermann Lotze, now commonly regarded as the greatest philosopher of the most intellectual of the nations, and who has left his mark on every scholar in Germany under forty years of age, is every- where renowned for his physiological as well as for his metaphysical knowledge, and as an opponent of the mechanical theory of life. 158 BIOLOGY. I look up to the highest summits of science, and I reverence properly, I hope, all that is established by the scientific method ; but when I lift my gaze to the very uppermost pinnacles of the mount of estab- lished truth, I find standing there, not Hackel nor Spencer, but Hemholtz of Berlin, and Wundt of Heidelberg, and Hermann Lotze of Gottingen, physi- ologists as well as metaphysicians all ; and they, as free investigators of the relations between matter and mind, are all on their knees before a living God. [Applause.] Am I to stand here in Boston, and be told that there is no authority in philosophy beyond the Thames? Is the outlook of this cultured au- dience, in heaven's name, to be limited by the North Sea ? The English we revere ; but Professor Gray says that there is something in their temperament that leads to materialism. England, green England ! Sour, sad, stout skies, with azure tender as heaven, omnipresent, but not often visible behind the clouds, sour, sad, stout people, with azure tender as heaven, and omnipresent, but not often visible behind the vapors. Such is England, such the English. We are to extend our field of vision to the Rhine, to the Elbe, to the Oder, to the Ural Mountains ; and, when we look around the whole horizon of culture, the truth is, that philosophical materialism to-day is a waning cause. It is a crescent of the old moon; and, in the same sky where it lingers as a ghost, the sun is rising, with God behind it. [Applause.] vm. DOES DEATH END ALL? THE NERVES AND THE SOUL. THE FIFTY-THIRD LECTURE IN THE BOSTON MONDAY LEC- TURESHIP, DELIVERED IN TREMONT TEMPLE NOV. 20. " IT needs not that I swear by the sunset redness, And by the night and its gatherings, And by the moon when at her full, That from state to state ye shall be surely carried onward." KORAN. " DIB Kraft, die in mir denkt und wirkt, ist ihrer Natur nach eine so ewige Kraft, als jene, die Sonnen und Sterne zuzammen- halt. Ihre Natur ist ewig, wie der Verstand Gottes, und die Stiit- zen meines Daseins nicht meiner korperlichen Ercheinung sind fest, als die Pfeiler des Weltalls." HERDER, Philosophy of History. VIII. DOES DEATH END ALL? THE NERVES AND THE SOUL. PRELUDE OF CURRENT EVENTS. SAFE popular freedom consists of four things, and cannot be compounded out of any three of the four the diffusion of liberty, the diffusion of intelli- gence, the diffusion of property, and the diffusion of conscientiousness. In the latter work, the Church is the chief agent ; and her most important instrumen- tality we call the Sabbath. Goldwin Smith very subtly says that it is free religion and hallowed Sun- days which explain the average moral prosperity of America. We have had in the last week, in Boston, a somewhat obscure and erratic convention, advising America to do better than she has thus far done in following the New-England ideas concerning Sunday. Give America, from sea to sea, the Parisian Sunday, and in two hundred years all our greatest cities will be politically under the heels of the featherheads, the roughs, the sneaks, and the money-gripes. [Ap- plause.] Abolish Sunday, and the social sanity it fosters, and, in less than a century, the conflict be- 161 162 BIOLOGY. tween labor and capital would issue here in petroleum fire-bottles. Capital in our great municipalities is fleeced now to the skin. Does it wish such social insanity to spring up as shall cut it through the cellular integument to the quick? If it does, let capital abolish Sunday. Working-men desire to build co-operation up into a palace for themselves and their little ones; and God speed their effort to protect their own ! But how can co-operation succeed without the large confidence of man in man? and how can that come without the moral culture given by the right use of Sundays ? Co- operation fails because men are not honest. How are men to be made honest without a time set apart for religious culture ? That population which habit- ually neglects the pulpit, or its equivalent, one day in seven, can ultimately be led by charlatans, and will be. [Applause.] I am no fanatic, I hope, as to Sunday ; but I look abroad over the map of popular freedom in the world, and it does not seem to me accidental that Switzer- land, Scotland, England, and the United States, the countries which best observe Sunday, constitute almost the entire map of safe popular government. Sabbath is a day of religious culture and cheerful rest. Its biblical warrant is found in the re-affirma- tion by the Sermon on the Mount of the whole moral spirit of the Decalogue. I affirm, without fear of successful contradiction by any cultured thought, that the Sermon on the Mount re-affirms the moral spirit of the Decalogue, and in that re-affirmation THE NERVES AND THE SOUL. 163 perpetuates the direction to hallow one-seventh portion of our time : it matters very little which seventh. " Forsake not the assembling of yourselves together," is apostolic precept, as it was apostolic example. No doubt small critics may show that the apostles and our Lord did works of necessity and mercy on the Sabbath ; and so do we, and so will we to the end of time. But the Sermon on the Mount re-affirms your first, your second, your third, your fifth, sixth, seventh, eighth, ninth, and tenth com- mandments. How are you to show that it does not re-affirm the fourth in spirit ? " Not one jot or tittle shall ever pass from the law till all be fulfilled." It is fifteen hundred years now since Constantine put into execution the law bringing one day in seven an unwonted hush on all industry in the Roman dominion. Here we are ten centuries off from the time when Christianity closed her chief political struggles. Here is a republic built chiefly by Chris- tianity, and perfectly free, and governing more square miles than ever Caesar ruled over. This nation calls peace to her industries one day in seven. She sends nine millions of her population, one in five, to a World's Fair, and shuts the door every Sunday. I know what report says about the evasions and hypocrisy of the Centennial Commission in admitting persons surrep- .titiously into the buildings on the Sabbath against the vote to close the grounds on that day. If the report is correct, the Centennial Commission ought to have public rebuke, unless it can make adequate explanation. 164 BIOLOGY. I am glad to see that even this erratic convention, dazzled out of sight by the sound ideas and majestic words of the Episcopal congress, was wise enough to proclaim that it did not wish to introduce into America the European Sunday. Hallam says that European despotic rulers have cultivated, as Charles II. did in the day of the " Book of Sports," a love of pastime on Sabbaths, in order that their people might be more quiet undei political distresses. " A holiday Sabbath is the ally of des- potism." Wherever the Romish or Parisian Sunday has prevailed for generations, it has made the whole lives of peasant populations a prolonged childhood. America, I venture to say, is satisfied with the rec- ord of the Sabbaths in her World's Exhibition. This convention seemed to think, however, that the bur- den of a great reform was laid upon its shoulders. It apparently thought its thin meetings the representa- tion of a large constituency. Men are strangely full of company sometimes, when before the mirrors of high self-appre'ciation. Sidney Smith, calling on a nobleman, passed through a room full of mirrors, which showed him several images of his own form approaching from many directions. He was wholly alone ; but he was overheard to say, " A meeting of the clergy, I see." [Laughter and applause.] THE LECTURE. Suppose that the musician at your organ yonder has on his finger Gyges' ring, which according to the Greek mythology, as you remember, made the THE NERVES AND THE SOUL. 165 wearer invisible. It is entirely clear, is it not, that if we were to approach and study that instrument while it is in action under the fingers of this invisible musician, we should find in it no authority for attrib- uting the anthem proceeding from the organ to the inert matter composing the organ ? We should have, on the contrary, incontrovertible evidence in the very structure of the instrument that it was made to be operated upon from without. If it is to give forth melody, it must be moved by something not itself. It is composed of wood and metal and ivory, all of which, with all their complicated mechanical arrange- ments, are inert, and, if taken alone, are wholly val- ueless in the production of music. In one portion of the organ we have a keyboard, and, in the case supposed, we look on the very intri- cate combinations and motions in the keys, and see no cause for the movements. But we know, if we are sane, that every change must have an adequate cause. We find a perfect correspondence between the mo- tions of the keys and the pulsations of the melody rising and falling in this temple. But this parallelism is not identity. The keys in motion are not the music. Motions and forces are not the same. Let, now, some inquirer of narrow mental horizon, and confusing as so much current discussion does motions with forces, assert that these intelligent movements of the keys which, of course, must have behind them forces containing intelligence are the sole cause of the anthem. Let him insist on a new definition of ivory. Let him affirm 'that the 166 BIOLOGY. matter composing these keys has in it the power and potency of all music, from the simplest air up to Bee thoven's Fifth Symphony. Let him go behind the organ, and elaborately study the very powerful and purely physical forces at work in the interior of the instrument. Let him show, learnedly and laborious- ly, that currents of air thrown into the pipes pro- duce, according to merely mechanical principles, the wholly physical concussions in the molecular parti- cles of the atmosphere which are concerned in the music. As no merely physical science, by any test known to man, can detect the presence of the musi- cian, let this observer assert that there is no musician independent of the instrument, and that the anthem proceeds wholly from the mechanism of the organ, acted upon by exclusively physical stimulation from without. Let him assert that the hypothesis of an invisible musician is as absurd as the attribution of aquosity to water, or of horologity to a clock. Ac- cording to this supposed materialistic observer of the organ, there is nothing in the anthem which is not wholly the result of the mechanism of the organ on the one hand, and of the merely physical forces sup- plied to it by the organ-bellows on the other. Let this naturalistic observer have a great name among men of his own opinions. Sho^d we be puzzled by these confident asser- tions ? Not if we held fast to the Ariadne clew of the self-evident, axiomatic truth, that every change must have an adequate cause. We should say that this instrument, being made wholly of matter, is THE NERVES AND THE SOUL. 167 inert. We should assert, in the name of established science, the incontrovertible inertness of all parts of the organ taken alone. We should say that the motion of rough currents of air through it does not and can not account for the intricate and ravishing melody which captivates our souls by its intelligence, and must have behind it a soul. Mere wood, metal, and ivory cannot utter Beethoven's spirit. Perhaps the air, by the slight pressure of intelligence on the keys, can be ruled into melody, and made to give all its majestic force to the intelligent weaving of the anthem. But in your organ, as elsewhere, involution and evolution are a fixed equation. You bring out of it only what you put in. Your musical instruments will throw no Beethoven into the air, unless there is a Beethoven at the keys. Such, my friends, is the stern outline of the inef- faceable contrast between the body and the soul. The distinction between matter and mind is a gulf as vast and impassable in physics as in metaphysics. The soul wears Gyges' ring. It is, indeed, invisible to the microscope, and intangible to the scalpel. But there are mysterious molecular motions in the ner- vous substance of the brain. Neural tremors fill the keyboard of the body. Undoubtedly there is a per- fect correspondence between these tremors arid the anthems of thought and emotion, in your Homer, your Demosthenes, your Caesar, your Milton, you* Shakspeare. But the parallelism is not identity. Motions and forces are not the same. The keys in motion are not the music. Physical forces play 168 BIOLOGY. through the brain ; but they do not sing, unless modu- lated by the ineffable touches of the keys. Just as surely as you, from the structure of an organ, may infer the necessity of a wholly exterior agent to move it, so, from the structure of the nervous system, we must infer the necessity of a wholly external agent to set it in action. [Applause.] In what I am about to put before you I have the authority of Frey, of Strieker, of Ranke, of Kolli ker, of Carpenter, of Beale, of Dalton, and of Draper. 1. In the nervous mechanism there are two kinds of fibres, called by physiologists the automatic arcs, and the influential arcs. We have here a representation of the simplest kind of nervous fibre [illustrating by a figure upon the blackboard], the pendent curve of a nervous thread, one end in contact with the external surface of the body, and the other connected with this mus- cular tissue. If you please, the bioplasts weave all that. 'Perfectly simple as the structure looks, it is a miracle. Can you make any thing like it? Here is your muscular fibre, which has the peculiar quality of contracting under nervous stimulus. Here is your nervous cord, which transmits strange influ- ences that cause contraction when they are received upon this muscular tissue. One test by which true is to be distinguished from false science is, that the former does, and that the latter does not, concern itself carefully with beginnings. Remember, that, even in this automatic nerve, motions and forces are THE NERVES AND THE SOUL. 169 not the same. Muscular contraction is an effect of physical forces only as these act on mechanism arranged before the forces themselves came into play. Your miraculous brain is first woven by your bio- plasts. You say mind is the result of the mechanism of the brain ; but the mechanism of the brain is the direct product of bioplasmic action. Of course, I am ready to admit, that, if you touch a portion of this automatic nervous arc with a galvanic current, you will produce contraction there in the attached muscle. Electrical stimulation of such a nerve may produce a contraction of the muscle even after the man is dead. But what wove that nerve ? What wove that contractile tissue ? Beyond this simplest structure, the next higher in the development of the nervous system is what is called the cellated nervous arc. We see it here, a pendent curve as before ; but now with a very large bead, or mass of nervous matter with bioplasts in the middle of it, is hanging at this point. It is yet true that irritation here produces contraction there. What influence, then, has this nervous centre upon the transmission of this nervous force? The books say that there is no proof that the nervous influence is changed in quality by its passage through one of these simplest ganglia. You may single out a nerve arc of that primitive style, and irritate it by an elec- tric current on one side of this large bead or ganglion, and you will produce contraction in the muscle just as before. You irritate this side beyond the great bead, and you produce contraction. 170 BIOLOGY. But a third step in the development of the nervous system does introduce a change. Many of these nerve-centres are tied up to other nerve-centres [illustrating by a figure in which the ganglion of the nerve-arc was connected with another ganglion] ; and in a nerve with its ganglion connected in that style with another ganglion, a portion of the influ- ence transmitted through this complex nervous mass is thrown off into this other complex nervous mass. Your physiological authorities call the latter a register- ing ganglion. This transmission of nervous influence into the registering complex of nervous matter may be very inadequately illustrated, Professor Draper says, by a faucet with three stops (DRAPER, PROFESSOR J. W., Human Physiology, p. 380), or by a mirror with a portion of the isinglass taken off the back. The light is in part reflected and in part transmitted. Thus this registering mass of nervous matter retains a portion of the force sent through this nervous arc ; and, in an animal possessing this nervous mechanism, there will be memory, or something equivalent to it. Thus far we have seen only what is called the automatic nervous mechanism. Please fix in your minds, gentlemen, the simplicity of this structure, and, when a more complicated mechanism is outlined in connection with this, keep vividly before your minds the contrast between the two. All established science is agreed that there are automatic and also influential arcs in the nervous system, and that the contrast between the two things is as marked as that between their accepted scientific names. THE NERVES AND THE SOUL. 171 In the higher animals there is added to the simpler automatic part of the nervous system a far more in- tricate structure, called the influential nervous mech- anism. Professor Draper represents the contrast between the automatic and the influential part of the nervous system by this ideal figure (DRAPER, Human Physiology, p. 282), which I here reproduce line for line. It is substantially a lower curve and an upper curve, the one automatic, the other influ- ential, and the two bound together by nervous threads. In all physiology, outside the supreme topic of bioplasm, I know nothing which is so sug- gestive as this contrast between the automatic and the influential nerve-arcs. Here, assuredly, is a majestic mount of vision upon which the philosophy of the relations between body and soul, matter and mind, must often pace to and fro. 2. Plants and many animals possess only the auto- matic arcs. 3. Such organizations as possess only the auto- matic arcs are automata ; and, although they have life, they cannot, in the strict sense of the word, be said to possess souls including free-will and con- science. The contrast between the influential and the au- tomatic is that between freedom and necessity. It is that between man, with the power of choice, and your poor honey-bee, who is supposed to work as an automaton. The bee has not the influential arc : it has only the automatic nerves. Accordingly, by in- stinct it has built its cell in the same way age after 172 BIOLOGY. age. Two bses under precisely the same circum- stances will do precisely the same things. But this upper arc, which is possessed by man, is called influential, and not automatic, because it is the seat of activities of a free sort. This is the key- board of your invisible musician : this is the white ivory shaped by no mortal fingers, and on which life plays. [Applause.] Gentlemen, I have been accused of being rhetori- cal ; but a man who wishes to dazzle by rhetoric does not talk in twenty-eighthlies and forty-ninthlies, as I have sometimes done. Any one, however, who wishes to convince by cool precision, very naturally employs numerals. You will allow me, therefore, to number the points of a discussion, which must be crowded, and which would nevertheless be clear. Just here expose themselves in more than glimpses the fascinating questions as to the difference between instinct and reason, and as to the immortality of instinct. Animals that possess only the automatic nerve-arcs have only instinct for their guidance : they have life, but not free-wills and consciences. Later in this course of lectures, I shall discuss the question, whether, after death, there is a survival of the immaterial principle in animals that are mere automata. Here and now I emphasize only this broad distinction between the influential and auto- matic nerve-arcs, a physical fact, without any haze either in' its margin or its contents. God material- izes. In the universe of forms, as well as in that of forces, the Divine language has no empty syllable. THE NERVES AND THE SOUL. 173 Perhaps this invisible musician, with Gyges' ring on his finger, has not been left without a witness of himself in the whitish-gray keyboard of the human organ. Perhaps the contrast between the automatic and" influential nerve-arcs is just as important a fact in the instrument God has made as the distinction between your musician and the man who moves the bellows behind the organ is in the instrument man has made. Among the automatic and influential nerve-arcs, all philosophy ought to stand listening with hushed breath. 4. Man possesses in abundance both the automatic and influential arcs. 5. Whatever animal possesses the influential arcs has a depository, magazine, or reservoir of force not dependent on external impressions. Aristotle noticed with great keenness of interest the fact that men awake before they open their eyes. Professor Bain regards that circumstance, with which we are all familiar, as one out of thousands of proofs that external irritation is not necessary always to internal activity. By the way, Aristotle was accustomed to assert that the most interesting portion of human knowl- edge is that which refers to what he called the ani- mating principle of physical organisms. We are beginning to think, I hope, that what is called bio- plasm is the most interesting by far of all the objects know to physical science. That, in substance, is an opinion two thousand years old. Aristotle defined the animating principle as the cause offoxmj/n organ- 174 BIOLOGY. isms (Ariutotle de Anima, passim'). This to him was the most alluring of all the topics open to Greek philosophy. He said often, that, if we ought to* be interested in a theme in proportion to its dignity, certainly nothing could be more entrancing than the study of the animating principle. 6. In man the influential arc is the seat of Intel- lect, free-will, and conscience. 7. But, as man possesses the automatic arc also, many of his actions are automatic. We must expect to find in some animals which have a much more perfect automatic nervous mecha- nism than man, instincts, and, apparently, sponta- neous movements, of the most marvellous kinds. I am not asserting that man is not in some respects an automaton ; but he is by no means as good a one as might be chosen if the power of automatic nervous action is to be shown. Professor Huxley went before a great audience at the Belfast meeting of the Brit- ish Association for the Advancement of Science, and took a headless frog, and put it on the back of his hand, and then turned his hand slowly over ; and the frog kept his place till the hand had been reversed, and the frog stood in the palm. (HUXLEY'S Ad- dress on the Question, Are Animals Automata . ? ) Now, said Professor Huxley, is there any will concerned in that ? Is not this the result of purely physical stim- ulation of the frog's nerves ? Have we not here an automaton?. He meant to puzzle the world about the freedom of the human soul. But the bioplasts wove that frog too. After the automatic mechanism THE NERVES AND THE SOUL. 175 is woven, such results are very well known to follow the action of the merely automatic part of the ner- vous system. A frog with his head cut off you may put on the back of your hand, and you may turn the hand over, and the frog will keep its place meanwhile without assistance, and stand on your palm. Of course, there is no action of the cerebral hemispheres there. The irritation of the feet has such an effect as to cause the muscles to enable them to cling to their support ; just as, while the perching bird sleeps^ the perch itself stimulates to action the muscles that cause it to be clasped by the bird's feet. Will you please notice that you have no right to be puzzled by any number of facts like these, and that all there is in Huxley's famous experiment is admitted truth concerning the automatic part of the nervous system, and that the puzzle consists in putting that fragment for the whole ? 8. As in man, the automatic and the influential nervous arcs are blended together by innumerable commissures, and are yet perfectly distinguishable by study, so the automatic and the free activities of man are, in experience, most intricately blended to- gether, and yet are perfectly distinguishable by care- ful attention. 9. Sometimes the former may become so powerful as to overcome the latter ; and sometimes the latter may overcome the former. 10. The power of habit, and, to a great extent, that of emotion, depends on the action of the auto- matic arcs. 176 BIOLOGY. Your classical orator of Boston stands upon some transfigured platform, and the warp and woof of his unpremeditated language fall from the loom of his mind, every figure perfect. You hold up in print the next morning his speech between your eyes and the merciless sunlight, and there is no flaw in the weaving. Your Phillips, your Everett, your Sum- ner, your Webster, have scarred into their nervous systems good literary habits. You know very well that a scar will not wash out, or grow out. Abso- lutely there is no doubt about this. But how vast and fathomlessly practical are the applications of the simple truth that scars are ineraseable ! A two-edged sword this, and of keener than Damascus steel. Your dull inebriate, who scars his brain by the habit of intemperance, thinks, that, after his reformation, his nervous system will slowly recover all the soundness it once had. But in your finger a scar will not grow out; and on your brain a scar will not grow out. Here are scars which were made when my fingers were too young to be trusted with edged tools ; but, although the particles of my body have been changed many times since then, the scars are here, reproduced with the reproduction of the particles of the body. Once in seven years we have a new body, the books used to say : once in twelve months, as they say now, the particles of our physical system are changed. Scars, however, are absolutely unchangeable in the changing flesh. We carry into our graves the marks of boyhood's sports ; and this is as true, if you please, of the sports that scar the brain as of those that gash THE NERVES AND THE SOUL. 177 the fingers. The most searching blessing on good habrts, the most penetrating curse on bad, is found in the one fact, that the automatic nervous mecha- nism is such, that when a habit, good or bad, is scarred into the nerves and brain, the soul pours forth the result of the habit almost spontaneously. The influential nerve-arcs can, indeed, hold back the activity of the automatic arcs. " The will counts for something as a cause," says Huxley himself. Dr. Carpenter explicitly teaches, that the influential nerve-arcs may resist, " keep in check and modify " the action of the automatic nervous mechanism. (CARPENTER, Physiology, eighth edition, 1875, p. 730. See, also, his Mental Physiology, passim.') The power of volition resides in the influential arcs. But even a man is so far an automaton, that, if he is an orator, he will scar himself with the com- plete oratorical habit, and may speak, as the bird sings, without effort. You wonder at the precision, fluency, and force of the language of your Burke or your Chatham. But the automatic nerve-scars rep- resenting good literary habits may have been in the mother, or in both parents, or in five generations. Certainly the habit of good extemporaneous speech has been cultivated through more than a quarter of a century by your Chatham and your Burke. It is now scarred deeply into the nerves ; and scars do not grow out. And when, before any audience, the warp and woof of eloquent speech are needed, the automatic action of good habit sets its power behind the will of the orator ; and nearly all that is required 178 BIOLOGY. is, that some great thought and passion should throw the shuttles once, and then the figured, firm web flows spontaneously from the perfect loom. [Applause.] But just so, my friends, your tendency or mine to slovenly speech, our fearfully unsesthetic ways, and even the inebriate's thirst, or the sensualist's leprous thoughts, scar the nervous system in its automatic arc. When you, thus scarred by habit, and it may be, alas ! by inheritance, pass the place of tempta- tion, you are seized, you know not with what power : you feel that there is necessity upon you ; and that mystery is simply the fact that scars are ineraseable. You have scarred your nervous system with an evil habit ; and now this terrific power of the automatic mechanism stands behind your will. Your musician yonder, under the same automatic law, derives power from the very source from which you derive weak- ness. He calls forth melodj^, spray after spray of the fountain of the anthem ascending and falling, with raptures all in rhythm ; and we are lifted by it to the azure ; we are ennobled by it mysteriously : but your musician is making no effort. So has habit ingrained his nervous mechanism, that he plays as the bird sings. Professor Huxley states, that once an old soldier, who had been accustomed all his life tc come to a perfectly erect attitude at the word " atten tion," was carrying home his dinner on a Londor street, when a comrade who desired sport called out to him from the other side of the way, " Attention ! " Instantly the inattentive soldier came into the up- right .attitude, and dropped his dinner in the street. THE NERVES AND THE SOUL. 179 Now, Professor Huxley says, that, although the de- tails of that anecdote may not be all correct, they might be, and that they might be because of the power of the automatic action of the nervous system. So you, holding }^our families' or your own pure char- acter in your arms ; you, citizens of Boston, holding your honor in this city in your bosoms, are some day tempted sorcerously by intemperance or passion, by the greed and fraud of crooked trade or politics, or by any of the bad impulses that habit or inherit- ance has woven into your nerves; and suddenly, under automatic trance, which might yet have been escaped by force of will, the things dearest to you are dropped by you in the draggled street of your private or public life at the sudden word " Atten- tion " from the black angel. [Applause.] 11. The action of the influential arcs is not to be regarded as a creation of force, but rather as the optional opening of a reservoir of force, given with the gift of life to each organization that possesses free-will. I touch here upon a great mystery, and am quite aware of the nature of the ground over which I pass ; but you will notice that this proposition does not go as far as Sir John Herschel does, when he asserts that the soul is, to a small extent, a real creative force. Let us call it, rather, a power- delegated for optional use. All the power we have is certainly delegated power. We have received it all from Almighty God. His force is all the force there is in the universe, intellectual or physical. [Applause.] 180 BIOLOGY. 12. This fast, that free-will is exercised through the influential arcs of the nervous system, does not, therefore, necessarily contradict the law of the per- sistence of force. 13. In both the automatic and the influential arc there is a perfect adaptation of the structure to the agent that is to set it in activity. Sometimes, at the end of the automatic arc, you have an eye, with its marvellous lenses, or an ear, which Professor Tyndall calls " a harp of three thou- sand strings." 14. The eye is the outer portion of the automatic arc concerned in vision ; and all parts of the eye are adapted in their structure to a wholly external agent, light. 15. The ear is the outer portion of the automatic arc concerned in hearing ; and it is adapted perfectly to an external agent, sound. 16. The nerves of smell are connected with a struc- ture adapted to a wholly external agent, odor. 17. The tongue is adapted in the same way to a wholly external agent, flavor. 18. Many problems in biology are susceptible of an inverse solution : as, for example, given the nature of light to determine, what must be the structure of the organ of vision ; or, given the structure of the eye to determine what is the nature of light. 19. So, in relation to the agent which moves the influential arcs, we have the problem : Given the structure of the brain to determine the nature of the agent which sets it in action. THE NERVES AND THE SOUL. 181 20. There is an absolute analogy in construction between the elementary arrangement of the fibres of the brain and those of any other nervous arc. 21. The influential, as well as the automatic part of the nervous system, has its centripetal and centri- fugal fibres, which converge to sensory ganglia, or nervous centres. 22. Just as the automatic arcs in man's nervous system have vesicular material at their external extremities in the organs of the senses, so the influ- ential have vesicular material at their external ex- tremities in the convolutions of the brain. 23. But we know beyond question that the auto- matic nerve-arcs can display no phenomena of them- selves : they all require an external agent to set them in motion. 24. The optical apparatus is inert without the influences of light ; the auditory inert without sound. The organs of taste and smell, and the nerves con- nected with them, are inert and without value, except under the influences of wholly external agents. 25. Established science asserts the absolute inert- ness of the cerebral structure in itself ; or the entire incapacity of the influential as well as of the auto- matic nerve-arcs to initiate their own activities. 26. As, therefore, from the structure of the eye, we may infer the existence of a wholly external agent, light, or from that of the ear, the existence of a wholly external agent, sound, so, because of the absolute inertness of the cerebral structure in itself, we must attribute its activities to an agent as external 182 BIOLOGY. to it as sound is to the ear, or light to the eye. [Applause.] 27. That agent is invisible to the external vision, and intangible to external touch. 28. It is positively known to consciousness, or the internal vision and touch. 29. That agent is the soul. 30. As the dissolution of the eye does not destroy the light, the external agent which acts upon it ; and as the dissolution of the ear does not destroy the pulsations of air, the external agent which acts upon it ; so the dissolution of the brain does not destroy the soul, the external agent which sets it in motion. [Applause.] Gentlemen, there is more than one soul here besides mine sad with unspeakable bereavement. There are eyes here besides mine which weary the heavens with beseeching glances for one vision of faces snatched from us in fiery chariots of pain. Is death the breaking of a flask in the sea ? Is there for me no more personal immortality than for a consumed candle ? Cool precision, gentlemen, not rhetoric; even at^the edge of the tomb, cool pre- cision ! I open Professor Draper, and read, " If the optical apparatus be inert, and without value save under the influence of light ; if the auditory apparatus yields no result save under the impressions of sound, since there is between these structures and the ele- mentary structure of the cerebrum a perfect analogy, we are entitled to come to the same conclusion in THE NERVES AND THE SOUL. 183 this instance as in those, and, asserting the absolute inertness of the cerebral structure in itself, to impute the phenomena it displays to an agent as perfectly external to the body, and as independent of it, as are light and sound ; and that agent is the soul." [Applause.] (DRAPER, Physiology, p. 285.) That is a very sacred kind of Scripture, for it is the record of God's work fairly interpreted. I might quote twenty other authorities ; but I cite this book because it has a great fame in Germany, and is accessible to all, and because Professor Draper, in a most painfully unfair volume on " The Conflict be- tween Science and Religion," has set himself some- what outside the pale of what I call just sympathies in this great discussion. He, at least, has proved his freedom from all traditional opinions. The objec- tion to the latter book is, that he confuses Romanism and Christianity, and shows that conflict has existed between some forms of the church and science, and then infers that Christianity itself is in conflict with clear ideas. This man, with more than one compeer of his in the latest physiological research seconding his words, affirms, in the' face of the world, that " It is for the physiologist to assert and uphold the doc- trine of the oneness, the accountability and the im- mortality of the soul, and the great truth, that, as there is but one God in the universe, so there is but one spirit in man " (DRAPER, Physiology, p. 24). " We have established the existence of the intellectual principle as external to the body " (Ibid., p. 286). That is Beale, and that is Hermann Lotze, too. 184 BIOLOGY. There is a school of rather small philosophy in Cambridge yonder, among a few young men, who, very unjustly to Harvard, are supposed by large portions of the public to represent the University. I happen to be a Harvard man, if you please, and ought to know something of my Alma Mater. There is not a paving-stone or an elm-tree in Cambridge that is not a treasure to me. Who does represent Harvard ? Hermann Lotze and Frey and Beale, rather than Herbert Spencer and Hiickel, are the authorities which the strongest men at Cambridge revere. [Applause.] The North American Review, the Harvard chair of metaphysics, the Harvard pul- pit, the Cambridge poets and men of letters, who are tall enough to be seen across the Atlantic and half a score of centuries, are not converts to mate- rialism. Must I infer that the New- York Nation is pos- sessed of a philosophy of materialistic tendency ? I have not criticised, I have even defended, the theistic doctrine of evolution. I have endeavored only to show that the atheistic and agnostic forms of that doc- trine are violently unscientific. There is a use and an abuse of the theory ; and Dana 'represents the one, and Hackel the other. I have treated atheism and materialism without much reverence ; for I revere the scientific method. But three weeks in succession I am assailed with ridicule without argument in a crit- ical journal that claims to be courteous and fair. As this cultured, and, I may say, distinguished Boston audience knows, the New-York journal has stated THE NERVES AND THE SOUL. 185 my positions with the most broad and painful inaccu- racy. Am I to stand here before an audience that has as much culture in it as any weekly gathering in the United States, and be lashed before the world b}^ this New- York weekly, which is, indeed, well informed in politics, but in philosophy is so far be- hind our times as to be now predominantly Spence- rian ? Its editor, as you know, resides in Cambridge ; and the small, disowned school in philosophy there seems to have taken possession of this periodical of very unequal merit. In philosophy, the Nation has no outlook beyond the Straits of Dover. I do not remember that I ever saw in it a single reference to Hermann Lotze, or any proof of large knowledge of so much as the outlines of the freshest German thought of the first rank on the physiological side of metaphysical research. As to present culture in the wide and rich theological field, I may say, that, so far as a specialist's judgment is worth any thing, mine is, that the Nation cannot be trusted on this theme, it is so benighted by its insular philosophy, and by a very frequent arrogance toward all theology not Spencerian. This paper needs a rival. I dislike to criticise it; for, after all, it is our poor best in the way of a critical weekly. At a hotel table in Munich once, a haughty English lord asked me what was the best paper in America of the order of the Saturday Review of London. " The Nation," I said. " Yes," he replied ; " but you have forty millions of people, and Great Britain has only forty millions, and you have but one paper of this class." 186 BIOLOGY. There used to be a proverb, that, when Philadelphia wanted to know what to think, she looked to New York ; and, when New York wanted to know what to think, she looked to Boston ; and, when Boston wanted to know what to think, she looked to Con- cord. No doubt this proverb originated in Concord. [Laughter.] But I walked the other day with a Concord author whose words have been read with delight by two generations, and will be remembered, I hope, by twenty ; and he said to me under those histoiic elms on your Boston mall, after having been twice in the audience of this Lectureship, " You may tell Boston that I, for one, regard Lionel Beale and Hermann Lotze as the rising men in philosophy." That is Bronson Alcott, who lives not far from the spot where Nathaniel Hawthorne lies at rest till the heavens be no more. If you listen to the inner voice of Emerson's latest publications, and to that of Caiiyle's, you will find that these men whom you have called pantheists, are no deniers of the per- sonal immortality of the soul. Am I out of my field in endeavoring to prove that man has a soul ? Ne sutor ultra crepidam. Let no shoemaker go beyond his last, Horace said ages ago. But what if, in the progress of the ages, there be made a new last? Significant signs of the times are the professorships and lectureships starting up in re- nowned theological schools on the relations between the religious and other sciences. In New- York City, in Union Seminary, there is a lectureship, with ten thousand dollars endowment on "The Relations of THE NERVES AND THE SOUL. 187 the Bible to the Sciences." It is called the Morse Lectureship, because founded by Samuel F. B. Morse, in memory of his father, who was only a doctor of divinity. In the same school there is a lectureship on " Hygiene," founded by Willard Barker. We have the Vedder Lectureship at the New Brunswick School of the Reformed Church in America. Prince- ton has a chair, established in 1871, designed to dis- cuss elaborately "The Relation of Christianity to Natural and Speculative Science." Andover has a lectureship, and I hope may soon have a professor- ship, on this theme. Out of place ! I maintain that all these foundations are timely, and deserve the cordial support of all scholars. They are a new last, indeed ; but the occupants of these chairs will make specialists of themselves in their new fields, which will by no means be outside the range of theological research. All these facts were overlooked by the Nation when it made its astute examination of cata- logues to see whether ministers know any thing of the latest philosophy. Catalogues are a sufficiently sorry authority ; but their less slovenly perusal might have taught this journal that a new last has been created by a new time, and that, in the name of Horace's maxim, no student of religious science can be warned off the field which Hermann Lotze and Beale have entered. No student of religious* science is ade- quately equipped for his work, unless, with open eyes, he has worshipped in that temple of physiologi- cal research where Lotze and Helmholtz and Frey and Wundt and Beale and Carpenter and Dana, and 188 BIOLOGY. all men of science who think not to twenty only, but to thirty-two points of the compass, now kneel, hushed, dead, in the presence of a Living God, but ready to rise up alive, and fill civilization with their own enthusiasm. [Applause.] IX. DOES DEATH END ALL? IS INSTINCT IMMORTAL? THE FIFTY-FOURTH LECTURE IN THE BOSTON MONDAY LECTURESHIP, DELIVERED IN TREMONT TEMPLE NOV. 27. " DES Todes rhiircndes Biltl steht, Nicht als Scnrccten dem "Wciscn, und niclit als Ende dem From- men." GOETHE: Hermann iind Dorothea. "Dm Schopf ung himgt als Schleier, der aus Sonnen und Geistern gewebt 1st, iiber dem Unendlichen, und die Ewigkeiten gcheu vor dem Sclileier vorbei, und ziehen ilm nicht weg von dem Glanze, den er verhiillet. . . . Ich und du, und alle Menschen und alle Engel und alle Wiirmclien ruhen an seiner Brust, und das brausende, schlagende Welten- und Sonnenmeer ist eiu einzages Kind in seinem Arm." JEAN PAUL KJCHTER, Hesperus. IX. DOES DE4TH END ALL? IS INSTINCT IMMORTAL ? PRELUDE ON CURRENT EVENTS. ON the morning of Saturday, Oct. 23, 1852, Dan- iel Webster, whose statue was unveiled last Saturday in Central Park, said to his physician, " I shall die to-night." Dr. Jeffries, much moved, replied, after a pause, "You are right, sir." The gorgeous and jewelled October day rolled on at the edge of the sea ; and, when evening came, the last will and tes- tament of your greatest statesman and orator was brought to him for his signature, which he affixed, and then said, " Thank God for strength to do a sensible act ! O God, I thank thee for all thy mer- cies." His family was brought to his bedside ; and his biographer, Curtis, noticing that Mr. Webster was about to say something which should be re- corded, took his seat at a table, and caught these last words. Curtis says they were uttered slowly in a tone which might have been heard through half the house : " My general wish on earth has been to do my Master's will. That there is a God, all must acknowledge. I see him in all these wondrous works. 191 192 BIOLOGY. Himself how wondrous ! What would be the con- dition of any of us, if we had not the hope of immor- tality ? What ground is there to rest upon but the gospel ? There were scattered hopes of the immor tality of the soul, especially among the Jews. The Jews believed in a spiritual origin of creation. The Romans never reached it ; the Greeks never reached it. It is a tradition that communication was made to the Jews by God himself through Moses. There were intimations, crepuscular, twilight. But, but, but, thank God ! the gospel of Jesus Christ brought life and immortality to light, rescued it, brought it to light." Then the greatest reasoner this country has produced caused a sacred hush to fall upon his dying-chamber; and in a loud, firm voice he re- peated the whole of the Lord's Prayer, closing with these words, " Peace on earth, and good- will to men: that is the happiness, the essence, good- will to men." Another authority, that of his own secretary, says, that, in the last week of his life, this man, whose career you know, often repeated the whole hymn, of which the first stanza is, Show pity, Lord; O Lord, forgive! Let a repeating rebel live. Are not thy mercies large and free ? May not a sinner trust in thee ? Webster knew his own need of these petitions. I am not here to say that he lived a Christian life. I raise this morning, when Webster is before the nation, the question, whether there is any evidence that he IS INSTINCT IMMORTAL? 193 died repentant. I hope there is. Not many years ago I sat, on a howling winter-night, at the fireside of John Taylor in gnarled New Hampshire ; and he said to me, " Webster always attended the commu- nion-service when he was at Elms Farm. Till his death he was a member in good standing with the Salisbury church, with which he united when a young man." "But," said I, "was that church strong enough to discipline a statesman?" "If Webster had shown," John Taylor replied, " any thing of intemperance, or other evil ways, in New Hampshire, he would have been disciplined by that church. What he did in Washington, I know not. Here, among those who knew him best, he was always ready to kneel at the family altar. There was one hymn that we always used to like to sing together," said John Taylor, with his immense bass voice, and wholly unconscious of the expression he was making of his own massiveness. " We liked to sing together 4 Old Hundred: ' it seemed to fit us." The venerable Judge Nesmith, whose guest I have sometimes been at Franklin, has told me things almost too sacred to be repeated here, concerning Webster's religious thoughtfulness in his last years. " Were they the last words I have to utter," said John Taylor to me, " I should say Webster died a Christian ; " and just this testimony has been given me by the profound judge, Nesmith, who stands highest among all au- thorities concerning Webster's life in his native haunts. Your Robert C. Winthrop, at New York on Saturday, said he had knelt with Webster at the 194 BIOLOGY. table of our Lord, and witnessed the fervor and tenderness of his devotions. But, gentlemen, a death-bed repentance is never to be encouraged before the time, or discouraged at the time. What I wish to insist upon, face to face with all the small philosophies of our time on both sides of the Atlantic, is the record of Webster's last speech, revised by himself. These sentences which Curtis caught are the last unrevised speech. But on Sabbath evening, Oct. 10, the last formal speech was written, and on Oct. 15, was revised and signed by Webster's own hand. These, his last revised words, stand upon the marble of the tombstone at Marsh- field. Plymouth Rock looks on them ; and they look on Plymouth Rock. This is the record Webster left as his last word to men in all ages ; and ought it not to be copied in marble in some spot more conspicuous than that brown Marshfield shore ? "Philosophical argument, especially that drawn from the vastness of the universe as compared with the apparent insignificance of this globe, has often shaken my reason for the faith that is in me ; but my heart has assured and re-assured me that the gospel of Jesus Christ must be a divine reality. The Ser- mon on the Mount cannot be a merely human pro- duction. This belief enters into the very depth of my conscience. The whole history of man proves it" (CuKTis's Life of Webster, vol. ii. p. 684). At twenty-three minutes of three o'clock on the Sunday morning following that Saturday which was illumined by the serious words on immortality, Web- IS INSTINCT IMMORTAL? 195 ster passed into the Unseen Holy into which all men haste. Boston, since 1852, has been wringing her hands in secret, and saying not infrequently, as the plain man said at the tomb ir Marshfield, " Daniel Webster, without you the world seems lonesome." Are we sure that we are without him ? When Rufus Choate took ship for that port 'vvhere he died, some friend said, " You will be he~e a year hence." " Sir," said your great lawyer. " I shall be here a hundred years hence, and a thousand years hence." [Applause.] THE LECTURE. If death does not end all, what does or can? If we can demonstrate by a purely physiological argu- ment, as Draper, Lionel Beale, and Hermann Lotze, say we can, that the soul is an agent as external to the cerebral mechanism as light is to the eye, or sound to the ear, we have taken the Malakoff and Redan of materialism ; and then the question is, whether we can get on in Russia. [Laughter.] A small critic may ask how the immortality of the soul is proved by showing its externality and its independence in its relations to the physical organism. The immortality is not directly proved by the proof of the externality and the independence ; but it is indirectly made prob- able. If you take Island No. 10 and New Orleans, you can sail from St. Louis tc die Gulf, and thence to any coast you please. If, as the highest philosophy of Germany, Scotland, England, and America, asserts, our nervous mechanism is wholly inert in itself, and as plainly requires an external agent to set it in mo- 196 BIOLOGY. tion as any musical instrument does, then the dissolu- tion of the brain is no more proof of the dissolution of the soul than the dissolution of your organ is proof of the dissolution of the musician who plays it, but who has Gyges' ring on his finger, and is invisi- ble. It has, in all ages, been the pretence of materi- alists, that the relation of the soul to the body is that of harmony to the harp, and not of the harper to the harp, or of the rower to a boat. But show me by physiological argument that the soul is an agent ex- ternal to the nervous mechanism, and you have proved that the relation of the soul to the body is that of a harper to a harp, or of a rower to a boat ; and, in showing that, you have removed, I affirm, not only a great, but the greatest obstacle to the belief in im- mortality. Unless there is evidence to the contrary, as there is not, we must believe in the persistency of that spiritual force which we call the soul ; and this we must do in the name of the scientific principle of the persistence of force, itself the most vaunted of all modern points in science. [Applause^] Allow me, gentlemen, to untwist a little the famous Ariadne clew, which we follow here in all our inves- tigation ; namely, that every change must have an adequate cause. In that one principle lie capsulate a great number of axioms which are at the base of all kinds of research, theological, physiological, political, or historical. Lest you should suspect me of theological bias in untwisting the strands of this clew, take that inter- pretation of it which the great physiologist, Wundt, IS INSTINCT IMMORTAL? 197 whom I have often quoted, adopts in his work on " The Physical Axioms in Relation to the Principle of Caus-alit}^," a book published at Erlangen in 1866. Professor Wundt says that the principle that every change must have an adequate cause, contains in it these six axioms : 1. All causes in Nature are causes of motion. 2. Every cause of motion is external to the object moved. 3. All causes of motion work in the direction of the straight line uniting the point from which the force departs with the point upon which its operation is directed. 4. The effect of every cause persists. 5. Every effect is accompanied by an equal coun- ter-effect. 6. Every effect is equivalent to its cause. [WUNDT, PROFESSOR WILHELM, On the. Physical Axioms in Relation to the principle of Causality. See, also, UBERWEG'S History of Philosophy, passages on Wundt.] Will you remember, my friends, that the definition of force is this, That which is expended in producing or resisting motion? That is Meyer's definition ; and Meyer, if he had never given any other proof of genius than this one phrase, would deserve to be called a man of great powers. But go behind even this defini- tion, and, for the sake of clear ideas, ask- what is expended in producing or resisting motion. Surely the only thing we can think of as being expended thus is pressure. What produces pressure ? Your 198 BIOLOGY. Carpenters, your Agassizes, and your Herschels, yotii Newtons, your Sir William Hamiltons, your Danas, as well as your Richters and Carlyles and Lotzes, all hold that behind the pressures which produce the motions of the universe is WILL! MOTIONS, PRESSURES, WILL is the universe transfigured? [Applause.] This is not declamation, however, but established philosophy of the latest date. Whoever will look into the last chapters of Dr. Carpenter's "Mental Physiology/' or at the last sentence of Mr. Grove's famous " Essay on Correlation of Forces," or into Professor Agaesiz' " Essay on Classification," or into Sir John Herschel's "Astronomy," or Dana's " Geology," or Professor Pierce's great work on " The Mathematics of Astronomy," will find the doctrine unhesitatingly maintained, that force is always and everywhere of spiritual origin. [Applause.] When I was in. Harvard University, I went one day into a bookstore, and turned over a great quarto on "The Mathematics of Astronomy" by Professor Pierce; and I came upon a chapter entitled " The Spiritual Origin of Force." I looked into it ; and, welling up out of that stern granite of mathematics, I found the Castalian spring of crystalline water, where the Goethes, and Herschels, and Carpenters, and Agassizes, and Lotzes, and Danas, and Richters, and Carlyles have drunk so long. In the transfigur- ing scientific certainty that all force originates in Will, I found that better than Delphic spring, one deep draught of which gives a new vision to the eyes, and makes the whole universe a burning bush, of IS INSTINCT IMMOKTAL? 199 which Orion and the Seven Stars are only a lower- most leaf, but every fibre of which, near and far, burns with a fire that cannot be touched, and every dustiest path before which is ground so holy, that on it we must take off our shoes, however proud of in- tellect we may be. [Applause.] Take now, the doc- trine, that wherever we find heat, light, electricity, we infer motions of the ultimate particles of matter as the cause ; and that, wherever we find motions, we infer pressures as the cause ; and that, wherever we find pressures, we infer WILL as the cause, and you have the point of view of these six axioms, which, by the way, are not the words of any small philosopher, nor of a theologian, nor even of an ethical teacher, but of a man simply of the microscope and scalpel, adher- ing in all the labyrinth of modern physiological in- vestigation, only to the idea of sanity, that every change must have an adequate cause. [Applause.] You say that this is poetry, and so it is ; but it is also cold, exact science. You say this is not Har- vard University. Are you sure ? Yonder on the banks of the Charles sits the most philosophical poet of our generation, yes, tne most philosophical on either side of the Atlantic ; and, in the name of Harvard University, James Russell Lowell might rise and sing what he sang in his own name only yesterday : " God of our fathers, thou who wast, Art, and shalt be, when the eye-wise who flout Thy secret presence shall be lost In the great light that dazzles them to doubt, 200 BIOLOGY. We who believe Life's bases rest Beyond the probe ofchemic test, Still, like our fathers, feel thee near." * LOWELL, Atlantic Monthly, D