THE REIGN OF LAW, Let knetFm e growfromn mGore fon jttr But more of reverence in uzs dwell; That mind and soul, according well, Mrar 7make one mus.ic as before, Czar v'vzaa o a # 6,;9N za~~ii~rto, BY THE DUKE OF ARGYLL. F3OURTH AME RICAN EDITION. NEW YORK: GEORGE ROUTLEDGE & SONS, 4I6 BROOME STREET. I873. PREFACE TO THE FIFTH EDITION. I N preparing a Fifth Edition of this work, I have to acknowledge the favour-far greater than I expected-with which it has been received. The argument which it maintains is at variance with the philosophy of some of the most active and popular thinkers of the time; and on a few important points it deviates from the view commonly adopted by men with whom I am more generally agreed. Some adverse comment was therefore not only to be expected but desired. Most sincerely do I thank those who, in numerous Journals and Reviews, have undertaken this duty, for the uniformly courteous and even kindly spirit in which their criticisms have been expressed. vi PREFACE TO THE FIFTHI EI)ITIOL-T. In this Edition no alteration has been made involving any change of principle or opinion. Here and there words have been added or removed according as individual passages appear to have been misunderstood. Throughout sonime of the chapters substantial additions have been made in reply, direct or indirect, to my principal opponents, whilst discussions, more detailed than were suitable for the text, have been committed to Notes at the end of the volume. These additions and Notes have reference chiefly to the following< articles which appeared in review of the " Reign of Law: "Ist. An Article, by Mr. Alfred R. Wallace, in the Qzlua'iery Y ournzal of Scienzce, for October i867. This article is in defence and illustration of Mr. Darwin's " Theory on the Origin of Species." The eminence of Mr. Wallace as a Naturalist, the extent of his researches in some of the most reimarlkable Faunas of the world, and the fact that, PREFACE TO THE FIFTH EDITION. Vii before the publication of Mr. Darwin's book, he had come to kindred, if not identical conclusions,all render him peculiarly competent to defend the "Theory," and to present it in the strongest light. I have therefore added to the text several passages suggested by the challenge he makes, and by the reasoning he employs. A further discussion of his paper will be found in Note A. 2d. An Article, by Mr. George H. Lewes, in the Forltnigklzy Xeview, for July, I867, dealing with the main argument and conclusion of this work from the well-known point of view of the " Positive Philosophy." Wherever in the text there seemed a fitting place for doing so, I have inserted passages which deal with the reasoning of his paper, or with the same reasoning as it appears in a more systematic form in the Prolegomenla to Mr. Lewes's "History of Philosophy." 3d. An Article in the Dublin Review, for April i867, which I am permitted to attribute to the Viii PREFACE TO THE FIFTH EDITION. learned editor of that periodical, Dr. Ward. The more special object of his adverse comment is the view I have taken of the doctrine of Free Will — a doctrine which Dr. Ward, with some warmth, accuses me of having virtually abandoned whilst professing to defend it. A slight alteration in the text may perhaps help to remove some objections, which rest entirely upon a misunderstanding of the sense in which particular words are used. But behind and beyond any misunderstanding of this kind, there lies apparently a substantial difference in respect to which my view remains unaltered. This difference will be found discussed in Note F, at the end of the volume. 4th. An Article in the Conltemporary Review, for May I867, by Mr. J. P. Mahaffy. With reference to his observations, as well as to those of some other critics, I have somewhat expanded several passages which deal with the Supernatural, and with the various relations in which miracles PREFACE TO THE FIFTH EDITION. ix have been conceived to stand towards the "Reign of Law." I have also, in a special Note (G), replied to a criticism in this paper, referring to the subject of Necessity and Free Will. Other Notes have been added in illustration or support of various passages in the text. As regards the intention I had at one time entertained of adding a chapter on "Law in Christian Theology," further reflection has only confirmed me in the feeling that this is a subject which cannot be adequately dealt with in such a form. I can only again ask my readers to remember that although some ideas which belong to this subject, or touch it at various points, cannot be, and have not been, avoided, yet the desire and intention to postpone it, in so far as it was possible to do so, has left blanks which every careful eye must see. IWVERPARAY, atn. i868. PREFACE TO TTHE FIRST EDITION. OME portions of this work have already appeared at various times in the EdlizbzUtrg Revizo,-, in Good [W~ords, and in Addresses to the Royal Society of Edinburgh during the years in which I had the honour of being President of that Body. The deep interest of the mnatter dealt with in those Papers has induced me to expand them, to add new chapters on other aspects of the same subject, and to publish the whole in a connected form. Among many other deficiencies which may be observed in this Volume, there is one which demands' explanation, lest a serious misunder. standing should arise. I had intended to con. X11 PREFACE TO THE FIRST EDITION. clude with a chapter on " Law in Christian Theology." It was natural to reserve for that chapter all direct reference to some of the most fundamental facts of Human nature. Yet without such reference the Reign of Law, especially in the "Realm of Mind," cannot even be approached in some of its very highest and most important aspects. For the present, however, I have shrunk from entering upon questions so profound, of such critical inmport, and so inseparably connected with religious controversy. In the absence of any attempt to deal with this great branch of the inquiry, as well as in many other ways, I am painfully conscious of the narrow range of this work. I can only offer it as a very small contribution to the discussion of a boundless subject. INVERARAY October, I866, CONTE N TS. CHAPTER I, THE SUPERNATURAL, Paga The term Supernatural employed in different and contralictory senses... i The Natural casting out the Supernatural... 3 Nature, in its widest sense, to be understood as including all causal agencies, especially Man's Mind and Will... 5, 6 Man's agency the most Natural of all agencies... 7 Mal's Mind and Will regarded as belonging to the Supernatural......., 8 Relation of Man's agency to the physical laws of Nature. I I "Supernatural " power-Is it Power independent of the use of means?............. Relation of God to the rules of His Government called " Laws ".............. I5 Mansel's position, that a Miracle is a Superhuman work.. I8 Gibbon's attempt to account for the spread of Christianity by Natural causes......... 20 Preservation of the Jews by means employed to effect a Divine Purpose.............. ib. Nothing in Religion incompatible with the belief that all exercises of God's power, ordinary and extraordinary, are effected through the instrumentality of means. 22 Principal Tulloch's view of Miracles.....,.. 23 Locke's idea of Miracles....... 24 The great truth he misses. o.. o... 25 xiv CONTENTS. Page Truths and Difficulties of Religion - their type in the course and constitution of Nature.. o 26 Guizot's argument, that Manl is the result either of Material forces or Supernatural power........ 27 The Development hypotheses........... 29 No distinction in Scripture between Natural and Supernatural 30 " Silent Members " in animal frames........ 32 Perception of Correspondences as much a fact as the sight or touch of the things in which they appear.... 33 Fertilisation of Orchids... c.. 37 Intention the one thing which Darwin sees..... 38, 39 Orchids in all their marvellous forms developed out of the archetypal arrangements of Threes within Threes -. - 44 Ideas of Order based on Numerical Relations nleet us at every turn in Nature........ 49 The distinction drawn between the Natural and the Supernatural a distinction artificial, arbitrary, and unreal.. 5o Belief in the existence of a Personal God essential to all Religion........... 51 Decay of many Creeds and Confessions through dissociating tie doctrines of Christianity from the analogy of Nature. 52 CHAPTER IL LAW: ITS DEFINITIONS. Reign of Law in the world around us and within us o 55 Importance of looking sharply on Forms of Words professing to represent scientific truths-........ 56 Religion and Science closely connected.... 57 The Instinct which seeks for harmony in the truths of Science and the truths of Religion a higher Instinct than the disposition which pretends there is no relation between them. 58 The idea that Prayer to God is only a good way of preaching to ourselves....... e CONTENTS. XV Page Essence of the belief in Prayer, that the Divine Mind is accessible to supplication, and the Divine Will capable of being moved thereby.......... 6I Law, human and Divine, the authoritative expression of Will enforced by Power........ 64 The FIVE different Senses in. which Law is habitually used:First, as applied to an observed Order of Facts... 65 Secondziv, to that Order, as involving the action of some Force, or Forces, of which nothing more may be known. ib. 7Tiir'ly, as applied to individual Forces, the measure of whose operation has been more or less defined.. ib. FozrtZly, as applied to those Combinations of Force which have reference to the fulfilment of Purpose, or the discharge of Function...ib. Fzyti/y, as applied to Abstract Conceptions of the Mind. /b. These great leading significations circle round the Three great questions Science asks of Nature-the What, the How, and the Why........ b. The Three Lawrs of Kepler the simplest illustration of Law applied in the First Sense....... 66 An observed Order of Facts can only arise out of the action of some compelling Force..... 68 Law of Gravitation the great example of Law in the Third Sense.,.....,,,., 69 The "Verifiable Element" l. ~..,... 0 70 Laws in the first three senses explain nothing, save that the order of subordinate phenomena is due to Force.... 72 Law of Gravitation the best example of what Law is, and what it is not........ e.... ib. Languages grow according to rules of which the men who speak them are unconscious..76 WVhat happens around us in Nature the result of different and opposing Forces nicely balanced..... i& Principle of Adjustment as the instrument and result of Purpose always reached at last in the course of every physical inqu irY............ e 0... Xvi CONTENTS. Page Law in the highest Sense - Combination for the accomplishment of Purpose.... 79 Some Philosophers say the question " Why?" should never be asked... ib. The facts of Adjustment and of Function constitute not Filal but Immediate Purpose........ e. 8 The Function of an organ is its Purpose....e.. 82 Doctrine of Contrivance and Adjustment not so metaphysical as the doctrine of Homologies....... 83 Impossible in describing physical phenomena to avoid phraseology moulded on our own conscious Personality and Will. go Ultimate fact of Astronomical Science not the Law of Gravitation, but the Adjustment between that Law and others less known....... 92 Revolution of the Seasons depend on a multitude of Laws, Astronomical, Chemical, Electrical, Geological, &c..... 93 Chemical Science rich in illustration of Forces in mutual Adjustssent.............. 9'6 Theine " and " Strchnline" differ from each other only in the proportions in which they are combined... 95 How our Wills exercise a large and increasing power over the Material World......... 97 Laws of Nature immutable only in one Sense... ib. Laws of Nature employed in the System of Nature in a manner precisely analogous to that in which -we employ them —E-xamples furnished in the Shells of 13arnacles and in the Menai Bridge........99 Purpose never attained in Nature save by the enlistment of Laws as instruments....... Battery of the Torpedo compared with Man's Electric Battery Ior The Puzqose what we know in the Battery of the Electric Fish 104 We forget that Man's workls, no less than Nature's, are done through the means of Law...... I 07 FIpktM meaning of Law-the designation of some purely Abstract Idea, as, for instance, the First Law of Motion in Mechanics... e. e.. a a o IV8 CONTENTS. Xvii Page This Law never operates in itself, but is complicated with other Laws, producing a corresponding complication in result............ o. 9 Suggestions of Materialism lie thickest to the eye on the surface of things rather than below it...... II3 Physical Science cannot do more than widen the foundation of intelligent Spiritual beliefs........ 14 The modern idea of Law known instinctively to Man since first he made a Tool and used it as the Instrument of Purpose................ Two great enemies to Materialism; one rooted in the Affectons, the other in the Intellect......... 115 Transcendental character of the results of Physical research. I6 All Nature's realities are in the region of the Invisible... Ig8 Life, according to Huxley and Carpenter, the Cause of Organization.......... ib. Material Force, a force which acts on Matter.... r 9 Our Conceptions of Force traced to their fountain-head. I2o Force of Gravitation regarded by Herschel as " the direct, or indirect, result of a Consciousness, or a Will, existing somewhere ".. o......... 122 The idea of a Personal Will apart from the Forces which work in Nature, is said by some men to be a mere Projection of our own Personality into the world beyond. e 123 A Watch the abode of a " Watch-force..... I24 The greatest mystery of all-the analogy between Man's works and the Creator's... a 1.. e25 CHAPTER IIIL CONTRIVANCE A NECESSITY ARISING OUT OF THE REIGN OF LAVW. Necessity of Contrivance for the accomplishment of Purpose. 126 Contrivance in the Navigation of the Air.... a a a 129 "'The Way of an EagleintheAir".... eo /b. b Xvi.1 CONTZEN'TS. Page Force of Gravitation the principal Force in flight.... 13o Resisting Force of the Atmosphere the next Law appealed to I3I Elasticity and reacting Force of the Air another Law.. I 32 Great Force of a downward Blow from a Bird's Wing. o. 134 Convex and Concave Surfaces required in Wings... 136 The Feathers must underlap each other...... ib. HIow the power of forward Motion is given to B irds e. 138 This theory of Flight may he tested by the eye... 139 Experiment with a I-eron's stretched Wing..... 140 Why no Bird can fly backwards....... ib. The heavier a Bird the greater its possible velocity.... I44 Erroneous notion of Birds having Air-cells for the inhalation and stowage of heated Air........... I45 What Forces the movements of flying animals are governed by I46 Birds whose Wing is adapted for diving and flight.... e 48 Wings rather long than broad in Birds of great powers of flight.............. I 5C A long Wing nothing but a long Lever....... 151 I Description of the Albatross sailing or wheeling round a sllip............ I 54 Sharp-pointed Wings also possessed by such Birds. ib. WVhat sharpness, or roundness, of Wing depends on 56 On what the propelling power ofa Bird's Wing depends. I57 How B3irds can remain stationary in the Air..... I59 Use of the Tail in Birds..... i62 How Birds turn in flight........ I63 HIumming Birds the most remarkable examples of the machinery of flight........... i66 Adjustments to Purpose in a Wing-feather.... e5 3 Why Man has failed in Air Navigation... e 170 CHAPTER IV. APPARENT EXCEPTIONS TO THE SUPREMACY OF PURPOSE. Structures of which we cannot see the use.1.. I72 Mr. Darwin's cu'ious mistake about Green Woodpeckers. 1 76 CONTENTS. X[X Page Adapted colouring in Nature for purposes of Concealment 1 I77 Only employed under certain conditions...... 178 The Green Woodpecker does not come under these conditions I79 Strongly contrasted colouring in Woodpeclkers... ib. Birds amongst whom the assimilated colouring prevails.. I81 Purpose of Concealment in the Woodcock's plumage.. I82 In the Snipe 1........'1... 84 Insects in which imitation, with a view to Concealment, extends to Colour, Form, and Structure....ib. Beauty in Nature a Purpose, an Object, and an End... I88 Ornament as much an End in the Workshop of Nature as in the Jeweller's Workshop.......... I9 Instance in Nature where Ornament takes the form of Pictorial Representation............ 92 In many Animal structures, perh-llaps in all save one, there are parts the presence of which cannot be explained... I94, I95 Those aborted limbs parts of a universal Plan.... I96 A Plan of this kind itself a Purpose......... 197 African Notion that the Ostrich's toes correspond to Man's thumb and forefinger............. I98 Aborted Wings of the Ostrich really correspond to the Fi'/ngvs in Man........ I99 Homology in Structure and Analogy in Use...... ib. Original conception of the framework of Organic Life has its last development in Man.......... 201 In Nature, Use must be interpreted as including Actual Use, Potential Use, and Ornament...... 202 CH.APTER V. CREAT'rION BY LAW.o Law, according to Physiology, is never absent as a Servant o 2o8 A like Order in the existing World, and in the past Histoly of C reation.. A " 2 clg XX CONTENTS. Page Gradual Modification of Type in Animals....... 21r No knowledge of the Forces to which the phenomena of Life can be traced.......... 213 Development Theory in its earlier forms...... 214 Consequences of hiding our Ignorance of the causes of Phenomena by declaring them the result of Law..... 2I7 Darwin does not profess to trace the Origin of New Forms to any definite Law....... ib. Darwin's Theory not a Theory on " The Origin of Species" 2I9 His Theory incurs the risk of being self-condemned. 220 Humming~ Birds as exhibiting Mysteries of Creation.. 221 Absolute Distinctiveness from all other Families of Birds. 222 Bond that unites all the forms of this Family...... 223 "Centres of Creation" as regards Humming Birds... 225 Differences generic and specific between Humming Birds. 226 Plan in which mere Variety has been an aim...... 228 No connexion between the tHumming Bird's splendour and any Function essential to life..... 229 "Coquette" Humming Birds..........233 Curious example in I-lumming Birds of Variety for Ornament's sake...... ib. Mere Beauty and mere Variety for their own sake.... 235 "Natural Selection" does not account for the origin and spread of Humming Birds.......... 236 Each new Variety must be born Male and Female... 237 Possibility of new Births being the means of introducing new Species................ 239 Principle of "'Natural Selection" has no bearing on the "Origin of Species"....0 e e.. o. a. 240 "Correlation of Growth"'.. o, 241 Correlation of Growth in the Inorganic world.. a 242 Correlation of Growth having reference to Mental Purposes. 245 Mr. Darwin has not pointed out clearly the distinction between these two kinds of Correlation....... 246 Wonders of Correlation revealed by Disease and Malformatiolnt &C. a o e 0 e e e 0 a o.o e a a a 247 CONTENTS. XXi Pago Correlation between the internal Structure of the Teeth in Animals and the Structure of distant portions of their frame................. 248 One Force directs the Form and Structure of every Organism 249 No conception of any Force emanating from external things, and moulding the Structure of an Organism in harmony with themselves............ 251 Forces of Organic Growth worked under rules of close Adjustment to external conditions. - Examples of this in Ducks, Gulls, and Divers.......... 252 More correlated Correlations.-Wing-feathers and Auricularfeathers in Birds............. 254 New Species can be created only by a Creative Will giving to Organic Forces a foreseen direction...... 256 Scientific men, in seeking expression for ultimate ideas arrived at by physical research, are forced to borrow the language of mechanical invention......... ib. Mr. Darwin presenting under one phase two Ideas radically distinct................. 258 "Adherence to Type " and " Correlation of Growth" not in the nature of Physical Causes but of Mental Purposes.. 259 Correlation of Growth, in the sense of external adaptations, the most general of Nature's Laws...... 260 The only Senses in which we get a glimpse of Creation by Law..... 26I No reason why Inheritance should produce Organisms unlike, or only very partially like, each other.... 264 Affinities and Differences between Man and the Lower Animals....... ib. Theory of Creation by Birth clashes with the Theory ot' 4Natural Selection"........ 267 No fictions in Nature, and no bad jokes... 26S Some essential Resemblances between all forms of Life, e ib. The two Theories of Man's Origin..... 269 We see the Purpose, not the Method..... 271 All ultimate Truth beyond the reach of Science. o o. 272 S:XH1 CONTENTS. Page The Reign of Law-the reign of Creative Force, directed by Creative Knowledge, worked under'the control of Creative Power, and in fulfilment of Creative Purpose..... 273 CHAPTER VI. THE REIGN OF LAW IN THE REALM OF MIND. Phenomena of Mind under the Reign of Law.... 274 One Force in Nature the Source and Centre of all the rest, and all governed by Principles of Arrangement purely Mental; we know nothing directly of the ultimate Seat of Force in any form; the nearest conception we can have of it is derived from our consciousness of Vital Power... 275 If these conclusions be true, it need not surpris'e us to see that Law, in the same Sense, prevails in the phenomena both of the Material world and of the world of Mind... ib. The Mind not conscious of its dependence on Material Organs........ 277 6'No Series of Facts more complete and conclusive than the chain connecting the functions of the Brain with the phenomena of Mindl.....0 0 r. 279 Thought not to be confounded with Brain...... ib. Phrenology mere Confusion of Thought.. o 280 Physiology can never be the basis of Psychology. 282 Connexion between Mind and Brain a Law only in the Senise of Law as applied to " an Observed Order of Facts".. 283 Severe Thinking attended with expenditure of Force... 284 Difficulties from misconception of what Matter is and the Forces we call Material.......... 285 Large class of phenomena connected with Mind, of which Consciousness does not inform us..... 286 Men often impelled by MIotives they are unconscious of. 287 H.-Iow we can detect the action of Forces which have told upon our Minds............. 289 Origin of Ideas; how far due to Experience or to Intuition it. CONT'ENTS. Xxiii Page tMuscular Contractions of two dinds......... 292 Almost certain that the Mind has automatic faculties and others which work independently by Experience.... 293 Intuitive Power of mumerical Computation...... ib. In discussing the Origin of Ideas, there is great want of Definition in the use of terms......... 295 An Idea is as it were an organic Growth: —its Materi-lls from the external world, its Structure from within... 296 Intuition in the Young of the Lower Animals, whlen removed from their Parents.......... 297 In Birds, which have comparatively no Infancy. o o ib. Inheritance bf Physical and Mental qualities.... 300 Orderly progress of Events in the history of Nations... 3oi The aggregate of Motives, or Forces, which move the Mind, may be called the Laws which determine Human Action andl Opinions........ 303 The Lower Animals moved by fewer Motives than Men, and Savages by fewer Motives than civilized Men..... 304 Difficulty of predicting Conduct proportional to the number and kind of Motives............. 305 Secret of the boundless Difference between hMan and the highest Animals below him........... 306 Man never free from relations pre-established between the Structure of his Mind and the System of Things in which it is formed to move....... 307 Real Progress on the question of Necessity and Free WVill. 308 Still clearer Definitions needed.......... 309 Perfect Knowledge must be perfect Fore-knowledge.. 312 Spiritual Antecedents"............ 313 Reconcilement of Freedom of Will with the idea of Causation........... 314 Mr. Mill's contradictory positions as to the Interference of Will.................. 315 Comte on " Changeable Will"........ 319 Stability of Character inseparably connected with a,variable Will....... *.. 0 0 320 XX1V CONTENTS. Page An "' Arbitrary" or a " Capricious" Will....... 320 To operate on Human Character we must place it under favourable outward Conditions..... 322 CHAPTER VII. LAW IN POLITICS. Direct appeals to the Reason, or the Feelings, of men, useless when those faculties have not been placed under favourable Conditions............... 324 How tfr these Conditions are subject to the Control of Will through the Use of Means.......... 325 The Collective Will of Society operates on the Conduct of its members in two Ways-by Authority, and by altering Conditions............... 326 True Conception of Natural Law founded on the Progress of Physical Investigation.......... i. Plato's odious Conception of Human Society...... 327 Aristotle occasionally and almost unconsciously resorts to true methods of Scientific Reasoning......... 328 Why he missed the great Secret of modern Political Science. 330 Necessity of groping among little and common things a hard lesson for the Intellect......... 33 Forces in Human Nature so constant that they affect the great majority of men.............. 332 IHow these are to be controlled.. a. ib. The word "Natural". Q...... 333 Laws founded on a right exercise of Reason are Natural Laws in the best and highest sense.......... ib. The most difficult Problem in the Science of Government.. 334 Two great recent Discoveries in this country in the Science of Government................ ib The one great Error of Ancient Systems of Political Philosophy 335 Hfow opposite the doctrine of modern Politicians.... ib. Law of Spain, prohibiting Gold from leaving the country.. 336 CONT'ENTS. XXV Page Essential idea of the Old Commercial Policy...... 337 Of the New......... ib. Adam Smith's Denunciation of Laws restricting free Interchange in the Products of Labour and in the free Employment of Labour itself...;...0 338 Connexion of the work of James Watt and Adam Smith. 339 Watt's reduction to obedience of one of the most tremendous Forces of Nature............... 340 How Adam Smith's work was harder than James Watt's. 34 Watt's history a signal illustration of the Follies of Restriction............. 342 Order of Progress in Mankind-Long Ages of comparative Silence and Inaction brought to an end by shorter Periods of almost preternatural Activity. —Illustrations 3.. 343 Statute of Apprenticeship in the time of Adam Smith.. 344 Spinning and Weaving in I 76o..... 345 How the Survivance of the Ancient domestic Industries became no longer possible....... 346 Beginning of the Factory System....... 347 System of Apprenticeship in the earlier Mills... 348 Physical Degeneracy, Mental Ignorance, and Moral Corruption in the Factories........ b. The first Factory Act, introduced by the elder Sir Robert Peel................ 349 Abandonment of the Apprenticeship System..... 350 Exhausting and demoralising Labour in Factories by Children 351 The great Parliamentary Debate: How far it is wise or legitimate to interfere for Moral ends with the Freedom of the Individual Will............ 352 In what Sense the Children's Labour was "free" and was c "ot free"........ o...... 353 Arguments, founded on the Constancy of Natural Laws, against Legislative Interference with the "freedom" of Individual Will.......... 354 The supporters of Restriction themselves ignorant of the fundamental Principles at issue...... 355 XXV1 CONTENTS. Page The true doctrine of Necessity exemplified in the conduct of Emprnloyers and Employed........ 356 Antagonism between Natural Law and Human Law. o. ib. Results to be attained only by the higher Faculties of our Nature imposing their W~ill in authoritative Expressions of Human Law.5............... 358 The Factory Acts the first Legislative Recognition of a great Natural Law.............. 36o Double Movement in Legislation since the First FactoryAct. 361 Principle on which the great counter-movement depends.. 363 Progress in Political Science nowhere happier than in Factory Legislation................ 364 Example how External Conditions and Mental Character can be affected powerfully by positive Institution..... 366 Adjustment in the Realm of Mind by setting one Motive to counieract another........ 36 How new Motives may be evoked....... 369 The Spirit of Association-a Force in the Realm of Mind. 370 The Law of Competition......... 372 Good effected by Combination a higher Good than that resulting from Factory Legislation......... i. Combination, an Appeal to the Law of Contrivance; —the Power of Adjustment.......... 373 Sources of irror which pervert the Aims of voluntary Associationll........... 374 lHistory of Combination among the Working Classes untillately a sad history of Misdirected Effort...... ib. Difficulties of our time to be met by unshaken Faith in great Natural Laws and in the free Agency of Man to secure by appropriate means the working of those Laws for good. 376 The Law of Inequality not to be violated with impunity.. 377 Substantial economic Advantage secured wherever the Hours of Labour are reduced without a corresponding Reduction in Waes.......... 378 The very attempt of the Working Classes to govern through Combination their own Affairs is an Education in itself. 38o CONTENTS. XXVii Page Nature a great Armoury of Weapons and Implements for the service and use of Will......, r 382 As regards the great Science of Politics, men still, as it were, only at the break of day........ 383 We look on the Facts of Nature and Human Life through the dulled eyes of Custom and Traditional Opinion.... 384 Natural Openness and Simplicity of Mind characteristics of the individual men who have exerted the most powerful Influence for good on Society...... i. Power of the Agencies which the whole Constitution and Course of things offers to Knowledge and Contrivance.. 385 Instinct on her own narrow path a surer Guide than Reason 386 Some Causes no longer in existence which produced the Overthrow of the great historical Nations of Antiquity.... 387 Memorable Examples, in the last and present generations, of the Reign of Law over the Course of Political Events.. Modern Civilization presents the phenomena of Development and Growth........ 388 The most certain of all the Laws of Man's Nature O. ib. This the Law to which Christianity appeals..... 389 An immense satisfaction to know that the Result of Logical Analysis but confirms the Testimony of Consciousness, and runs parallel with the Primoeval Traditions of Belief. 39o Our Freedom a Reality-not a Name........ ib. Laws of Nature come visibly from One pervading Mind. 391 Their Purposes best fulfilled when made the Instruments of intelligent Will and the Servants of enlightened Conscience ib. LIST OF ILLUSTRATIONS. The Swift.....,....... facz.g 1x47 Wing of Gannet... a......... 54 Wing of Golden Plover....... 56 Sparrow-Hawk-Merlin-Kestrel Hovering.e O o 6l THE REIGN OF LAW. CHAPTER I. THE SUPERNATURAL. T HE Supernatural-what is it? What do we mean by it? How do we define it? M. Guizot 1 tells us that belief in it is the special difficulty of our tilethat denial of it is the form taken by all modern assaults on Christian faith; and again, that acceptance of it lies at the root, not only of Christianity, but of all positive religion whatever. These questions, then, concerning the Supernatural, are questions of first importance. Yet we find them seldom distinctly put, and still more seldom distinctly answered. This is a capital error in dealing with any question of philosophy. HIalf the perplexities of men are traceable to obscurity of thought hiding and breeding under obscurity of language. "The Super66L'Egtlise et la Societe Chretienne ell IG5I," ch. iv. p. 19. B 2 TH-'E REIGN OF LAW. natural" is a term employed often in different, andt sometimes in contradictory, senses. It is difficult to make out whether MI. Guizot himself means to identify belief in the Supernatural with belief in the existence of a God, or with belief in a particular mode of Divine action. But these are ideas quite separable and distinct. There may be some men who disbelieve in the Supernatural only because they are absolute atheists; but it is certain that there are others who have great difficulty in believing in the Supernatural, who are not atheists. What they doubt or deny is, not that God exists, but that He ever acts, or perhaps can act, unless in and through what they call the "Laws of Nature." M. Guizot, indeed, tells us that "God is the Supernatural in a Person." But this is a rhetorical figure rather than a definition. He may, indeed, contend that it is inconsistent to believe in a God, and yet to disbelieve in the Supernatural; but he must admit, and indeed does admit, that such inconsistency is found in fact. Theological and philosophical writers frequently use the Supernatural as synonymous with the Superhuman. But of course this is not the sense in which any one can have any difficulty in believing in it. The powers and works of Nature are all superhuman-more than Man can account for in their origin —more than he can resist in their energy-more than he can unlderstand in the0i ' HE SUPERINATURAL~ 3 effects. This, then, cannot be the sense in which so many minds find it hard to accept the Supernatural; nor can it be the sense in which others cling to it as of the very essence of their religious faith. What, then, is that other sense in which the difficulty arises? Perhaps we shall best find it by seeking the idea which is competing with it, and by which it has been displaced. It is the Natural which has been casting out the Supernatural — the idea of Natural Law, —the universal reign of a fixed Order of things. This idea is a product of that immense development of the physical sciences which is characteristic of our time. We cannot read a periodical, or go into a lecture-room, without hearing it expressed.,netimes, but rarely, it is stated with accuracy, and with due recognition of the limits within which Law can be said to comprehend the phenomena of the world. But generally it is expressed in language vague and hollow, covering inaccurate conceptions, and confbunding under common forms of expression ideas which are essentially distinct. The mere ticketing and orderly assortment of external facts is constantly spoken of as if it were in the nature of Explanation, and as if no higher truth in respect to natural phenomena were to be attained or desired.l And herein we see both the result for which 1 Those who have followed the course of recent speculation will recognise this sentence as intended to describe the characteristic l1 2 4 THE REIGN OF LAW. Bacon laboured, and the danger against which Bacon prayed. It has been a glorious result of a right method in the study of Nature, that with the increase of knowledge the "human family has been endowed with new mercies." But every now and then, for a time at least, from "the unlocking of the gates of sense, and the kindling of a greater natural light, incredulity and intellectual night hzave arisen in our minds."l But let us observe exactly where and how the difficulty arises. The Reign of Law in Nature is, indeed, so far as we can observe it, universal. But the common idea of the Supernatural is that which is at variance with Natural Law, above it, or in violation of it. Nothing, however wonderfutl, which happens according to Natural Law, would be considered by any one as Supernatural. The law in obedience to which a wonderful thing happens may not be known; but this would not give it a supernatural character, so long as we assuredly believe principle of the Positive Philosophy. I am glad to observe that so competent a judge as Mr. George H. Lewes says of it:-" Although not, perhaps, the most dignified or explicit statement of the Positive point of view, this may be accepted as essentially correct."-Forta ig-tly Review, July I867. 1 " This also we hunil)ly beg, that human things may not prejudice such as are Divine, neither that from the unlocking of the gates of sense, an.d the kindling of a greater natural light, anything of incredulity or intellectual night may arise in our minds towards Divine mysteries."-I" The Student's Prayer." SBceon's Works. THE SUPERNATURAL. that it did happen according to soue law. Hence, it would appear to follow that a man thoroughly possessed of the idea of Natural Law as universal, never could admit anything to be supernatural; because on seeing any fact, however new, marvellous, or incomprehensible, he would escape into the conclusion that it was the result of some natural Law of which he had before been ignorant. No one will deny that, in respect to the vast majority of all new and marvellous phenomena, this would be the true and reasonable conclusion. It is not the conclusion of pride, but of humility of mind. Seeing the boundless extent of our ignorance of the natural laws which regulate so many of the phenomena around us, and still more of so many of the phenomena within us, nothing can be more reasonable than to conclude, when we see something which is to us a wonder, that somehow, if we only knew how, it is " all right "all according to the constitution and course of Nature. But then, to justify this conclusion, we must understand Nature in the largest sense, —as including all that is 6' In the round ocean, and the living air And the blue sky, anbd in the mind of mranz." 1 We must understand it as including every agency which we see entering, or can conceive from analogy as capabie T "Tintern Abbey. "-Wordsworth. 6 TI-TE REIGN OF LAW. of entering, into the causation of the wo-rld. First and foremost among these is the agency of our own Mind and Will. Yet, strange to say, all reference to this agency is often tacitly excluded when Awe speak of the laws of Nature. One of our most disting fisbed living teachers of physical science' began, not long ago, a course of lectures on the phenomena of Heat by a rapid statement of the modern doctrine of the Correlation of Forces —how the one was convertible into the otherhow one arose out of the other-how none could be evolved except from some other as a pre-existing source.'"Thus," said the lectuier, "we see there is no such thing as spcntaneousness in Nature." What!-not in the lecturer himself? Was there no "spontaneousness " in his choice of words-in his selection of materials —in his orderly arrangement of experiments with a view to the exhibition of particular results? It is not probable that the lecturer was intending to deny this; it simply was that he did not think of it as within his field of view. His own Mind and Will were then dealing with the "laws of Nature," but they did not occur to him as forming part of those laws, or, in the same sense, as subject to them. Does Man, then, not belong to Nature? Is he above X Professor Tyndall THE SUPERNATURAL. it-or merely separate from it, or a violation of it? Is he supernatural? If so, has he any difficulty in believing in himself? Of course not. Seif-consciousness is the one truth, in the light of which all other truths are known. Cogito, ergo sunm, or volo, ergo sumz —this is the one conclusion which we cannot doubt, unless Reason disbelieves herself. Why, then, are the faculties of the human mind and body not habitually included among tile "laws of Nature? " Because a fallacy is getting hold upon us from a want of definition in the use of terms. "' Nature " is being used in the narrow sense of physical nature. It is conceived as containing nothing beyond the properties of Matter. Thus the whole mental world in which we ourselves live, and move, and have our being, is excluded from it. But these selves of ours do belong to Nature. At all events if we are ever to understand the difficulties in the way of believing in the Supernatural, we must first keep clearly in view what we intend to understand as included in the Natu-al. Let Is never forget, then, that the agency of Ma-n is of all others the most natural-the one with which we are most familiar-the only one, in fact, which we can be said, even in any measure, to understand. When any wonderful event can be referred to the contrivance or ingenuity of Man, it is thereby at once removed from the sphere of 11Ae Supernatural, as ordinarily understood. 8 THE REIGN OF LAW. It must be remembered, however, that we are now only seeking a clear definition of terms; and-that provided this other meaning be clearly agreed upon, the Mind and Will of Man may be considered as separate from "nature," and belonging to the Supernatural. This view is taken in an able treatise on " Nature and the.Supernatural," by Dr. Bushnell, an American clergyman.) Dr. Bushnell says:-" That is supernatural, whatever it be, that is either not in the chain of natural cause and effect, or which acts on the chain of cause and effect in nature, from without the chain." Again: —" If the processes, combinations, and results of our system of nature are interrupted or varied by the action, whether of God, or angels, or men, so as to bring to pass what would not come to pass in it by its own internal action, under the laws of mnore cause and effect, such variations are in like manner supernatural." There is no other objection to this definition of the Supernatural, than that it rests upon a limitation of the terms " Nature " and " natural," which is very much at variance with the sense in which they are commonly understood. There is, indeed, a distinc. tion which finds its expression in common language between the works of Man and the works of Nature. A honeycomb, for example, would be called a work of 1 Nature and the Supernatural, as together constituting the one System of God." By Horace Bushnell, D.DI. Edinburgh, I86o. THE SUPERNATURAL. 9 Nature, but a steam-engine would not. This distinction is founded on a true perception of the fact that the Mind and Will of Mar belong to an order of existence very different from physical laws, and very different also from the fixed and narrow instincts of the lower animals. It is a distinction bearing witness to the universal consciousness that the Mind of Man has within it something of a truly creative energy and force —that we are in a sense " fellow-workers with God," and have been in a measure'"made partakers of the Divine nature." Nevertheless, it would be using the word in a sense very different from that in which it is generally accepted, were we to call the steam-engine a supernatural work. Yet it does answer strictly to the definition of Dr. Bushnell in being "the result of natural Law varied by the action of men." It is made by "acting on the chain of cause and effect in nature from without the chain." But then, be it observed, that under the same definition all the contrivances of Nature become Supernatural the moment they are conceived as the work of a Mind using what we call the elements of nature for the accomplishment of its designs. If, for example, it is open to us to conceive that such a creature as a Bee cannot have been made out of those elements " by their own internal action," then we must regard both this creature and the wonderful products of its instinct as 10 THE REIGN OF LAW. belonging to the Supernatural. The honeycomb and the steam-engine would thus come under the same category — with this only difference, that the mind which made the steam-engine, being connected with a Body, is visibly known to us, whereas the 1Minid which made the Bee is withdrawn from sight. But both can be equally regarded as the result of Mind "C acting on the chain of cause and effect fiom without the chain." Nor can we stop here. The same process of analysis will carry us farther in the same direction. We often speak, as Dr. Bushnell does here, of the elementary forces of Nature as "' acting" by themselves. But there is no other meaning in these words than an expression of the fact that we neither see nor understand the connexion of those elementary forces and lMind. But this ignorance of ours affords no manner of presumption that such connexion does not exist. On the contrary, though the manner of that connexion be unknown, it is much more conceivable to us that some connexion does exist than that it does not. If therefore the distinction between the Natural and the Supernatural be the distinction between that which is and that which is not the work of Mlind, then it becomes a purely arbitrary distinction. It assumes that we can distinguish between cases in which the properties of matter work under the direction of Mind, and other cases in which they work "of themselves." But this is a line which we THE SUPERNATURAL. I draw for ourselves. There is no reason to suppose that it has any reality in the constitution of things. It is not in those things, but in the point of view from which we regard them, that the distinction lies. We have only to change that point of view, and the distinction vanishes. All Nature becomes Supernatural, because all her elements, both in themselves and in their combinations, are only conceivable as first established, and then employed by the powers of Mind. But if this definition of the Supernatinal displeases us, as tending to confound distinctions which we had thought were clear, let us take another definition. Let us take the Natural in that larger and wider sense, in which it contains within it the whole phenomena of Man's intellectual and spiritual nature, as part, and the most familiar of all parts, of the visible system of things. This is a definition more consonant with common language. In all ordinary senses of the term, Man and his doings belong to the Natural, as distinguished from the Supernatural. We are now from another point of view coming nearer to some precise understanding of what the Supernatural may be supposed to mean, But before we proceed, there is another question which must be answered-What is the relation in which the agency of Man stands to the physical laws of Nature? The I 2 THE REIGN OF LAW. answer, in part at least, is plain. His power in respect to those laws extends only, first to their discovery and ascertainment, and then to their use. He can establish none: he can suspend none. All he can do is to guide, in a limited degree, the mutual action and reaction of the laws amongst each other. They are the tools with which he works-they are the instruments of his Will. 11n all he does or can do he must employ them. His ability to use them is limited both by his want of knowledge and by his want of power. The more he knows of them, the more largely he can employ them, and make them ministers of his purposes. This, as a general rule, is true; but it is subject to the' second limitation just pointed out. Our power over Nature does not necessarily keep pace with our knowledge of her Laws.. Man already knows far more than he has power to convert to use. It is a true observation of Sir George Lewis,' that Astronomy, for example, in its higher branches, has an interest almost purely scientific. It reveals to our knowledge perhaps the grandest and most sublime of the physical laws of Nature. But a much smaller amount of knowledge would suffice for the only practical apples cations which we have yet been able to make of these laws to our own use. Still, that knowledge has a refiex "' Astronomy of the Ancients," p. 254. THIE SUPERNATURAL. 13 influence on our knowledge of ourselves, of our powers, and of the relations which subsist between the constitution of our own minds and the constitution of toe universe. And in other spheres of inquiry, advancing knowledge of physical laws has been constantly accompanied with advancing power over the physical world. It has enabled us to do a thousand things, any one of which, a few generations ago, would have been considered supernatural. Nor can it be said that this judgment of their character would have been erroneous. These things would have been superhuman then, though they are not superhuman now. The same lecturer who told his audience that there was nothing spontaneous in Nature proceeded, by virtue of his own knowledge of natural laws, and by his selecting and combining power, to present a whole series of phenomena —such as ice frozen in contact with red-hot crucibles-which certainly did not belong to the "ordinary course of Nature." Such an exhibition a few centuries ago would, beyond all doubt, have subjected the lecturer on Heat to painful experience of that condition of matter. Nevertheless the phenomena so exhibited were natural phenomena-in this sense, that they were the product of natural laws. Only these laws were combined in action under extraordinary conditions, and these conditions were governed by the purpose and design of the lecturer, which design 14 TH_1TE REIGN OF LAW. was "spontaneous," if there is any meaning in the word. In like manner, if the progress of discovery is as rapid during the next four hundred years as it has been during the last period of the same extent, men will be able to do many things which would now appear to be " supernatural." There is no difficulty in conceiving how a complete knowledge of all natural laws would give, if not complete power, at least degrees of power, immensely greater than those which we now possess. Power of this kind, then, however great in degree, clearly does not answer that idea of the Supernatural which so.many reject as inconceivable. What, then, is that idea? Have we not traced it to its den at last? By "supernatural" power, ldo we not mean power independent of the use of means, as distinguished from power depending on knowledge —even infinite knowledge-of the means proper to be employed? This is the sense-probably the only sense-in which the Supernatural is, to many minds, so difficult of belief. No man can have any difficulty in believing that there are natural laws of which he is ignorant; nor in conceiving that there may be Beings who do know them, and can use them, even as he himself now uses the few laws with which he is acquainted. The real difficulty lies in the idea of Will exercised without the use of means-not in the idea of Will THE SUPERNATURAL. x5 exercised through means which are beyond our know. ledge, or beyond our reach. Now, have we any right to say that belief in /zis is essential to all Religion? If we have not, then, it is only putting, as so many other hasty sayings do put, additional difficulties in the way of Religion. The rela. tion in which God stands to those rules of His government which are called " laws," is, of course, an inscrutable mystery to us. But the very idea of a Creator involves the idea not merely of a Being by whom the properties of Matter are employed, but of a Being from whose WMill the properties of Matter are derived. This, indeed, is the proper work of Creation, as nearly as we can form a conception of it. It is true that in forming this conception we pass beyond the bounds of our own experience, because "we pass from that in God of which there is an image in Man, to that which is distinctive of God as God." But this we muLst do in forming any idea of a God at all. We must conceive the Creator as first giving existence to the means, and theIn using them for the accomplishment of ends. "We cannot conceive of the original relation of this Universe to God as that of an infinite multitude of laws to an infinite Mind, having (only) perfect knowledge of them, and using this knowledge in turning them to account, in accomplishing designs of infinite wisdom. IY 6 THE REIGN OF LAW. TAe cannot conceive of infinite wisdom thus, as it were, finding infinite resources already existing." All this is true. But those who believe that God's Will does govern the world, must believe that ordinarily, at least, He does govern it by the choice and use of means,-which means were a.gain pre-established by Himself. Nor have we any certain reason to believe that He ever acts otherwise. Extraordinary manifestations of His Will-signs and wonders-may be wrought, for aught we know, by similar instrumentality-only by the selection and use of laws of which Man knows and can know nothing, and which, if he did know, he could not employ.2 1 I am glad to be able to quote these passages from one of my earliest and most valued friends, the Rev. J. McLeod Campbell. They occur in an Introduction to a new edition of his work on the "Nattre of the Atonement" (Macmillan and Co. I867)-an Tntroduction marked by characteristic depth of thought and feeling. 2 This chapter, originally published as an article in the Edinbzuirgh Review for Oct. I862, has been referred to in the remarkable work of Mr. Lecky on "The Rise and Influence of Rationalism in Europe," (vol. i. ch. ii. p. I95 note,) as conveying " a notion of a miracle which would not differ gezes''icazZy from a human act, though it would still be strictly available for evidential purposes." I am quite satisfied with this definition of the result. Beyond the immediate purposes of benevolence, which were served by almost all the miracles of the New Testament, the only other purpose which is ever assigned to them is an " evidential purpose "- that is, a purpose that they might serve as signs of the presence of superhuman knowledge, and of the working of superhuman power. They were performed-in short-to assist faith, and not to confound reason. THE SUPERNATURAL. 1 7 Here, then, we come upon the question of miracleshow we understand them? what we would define them to be? The common idea of a miracle is, a suspension or violation of the laws of Nature. This is a definition which places the essence of a miracle in a particular method of operation. But there is another definition which passes over the question of method altogether, and dwells only on the agency by which, and the purpose for which, a wonderful work is wrought. ~" WVe would confine the word miracle," says Dr. M'Cosh,l "to those events which were wrought in our world as a sign or proof of God making a supernatural interposition, or a revelation to AMan." The two most essential conditions in this view of a miracle, are that it is a work wrought by a Divine power for a Divine purpose, and is of a nature such as could not be wrought by merely human contrivance. This definition of a miracle does not necessarily exclude the idea of God working by the use of means, provided they are such means as are out of human reach. Indeed,- in an important note (p. 149), Dr. MICosh explains that miracles are not to be considered "as against Nature" in any other sense than that in which " one natural agent may be against another -as water may counteract fire." This eminent writer I " The Supernatural in relation to the Natural." By the Rev. James M'Cosh, LL.D. Macmillan, Cambridge, I86z. C IS TTHE REICN OF LAW. has approached the subject by the right method, because he has addressed himself first to the solution of the one question which is an essential preliminary to all subsequent discussion: —': low much is contained in the Natural? " Not until this question is answered, can the Supernatural be defined. Yet the answer given by Dr. M'Cosh shows the inherent and the insuperable difficulty which attends the giving of any answer at all. "In this world," he says, "there is a set of objects and agencies which constitute a system or Cosmos which may have relations to regions beyond, but is all the uwhile a sezfconcz zLed sphere, -wilh a spazce around it-an i slland so /far se5taraled from other lanzds. This system we call Nature" (p. oxi). This definition of the Natural is perhaps as accurate and as full as any that can be given. It assumes, however, that the boundaries of the Natural are known. Put the essential difficulty of separating between the Natural and the Supernatural is thisthat the boundaries of the Natural are nzot knownthat we cannot trace the shores of this "island"- that evenr if we could see any distinct separation between them and the space around them, we have not explored the "island" itself completely, and therefore we cannot say of any agency working therein, that it comes from beyond the Sea.. Mr. Mansel, in his "Essay on Miracles," adopts the word "superhuman" as the most THE SUPERNATURAL. 19 accurate expression of his meaning. Hie says, ("A super. human authority needs to be substantiated by superhuman evidence; and whiat is szperhmcUan is miraczllous." It is important to observe that this definition does not necessarily involve the idea of a " violation of the laws of Nature." It does not involve the idea of the exercise of Will apart from the use of means. It does not imply any exception to the great law of causation. It does not involve, therefore, that idea which appears to many so difficult of conception. It simply supposes, without any attempt to fathom the relation in wbhich God stands to His own "laws," that out of His infinite knowledge of these laws, or of His infinite power of making them the instruments of His Will, He may and He does use them for extraordinary indications of His presence.2 The reluctance to admit, as belonging to the domain of Nature, any special exertion of Divine power for 1 "Aids to Faith," p. 35. In another passage (p. 2I), Mr. Mansel says, that in respect to the great majority of the miracles recorded in Scripture, "the supernatural element appears... in the exercise of a personal power transcending the limits of man's will. They are not so much szpermZterial as sui-zhuman." 2 I agree with Mr. J. TM. Campbell when he says, in the Intro. duction already quoted, "It appears to me that we do not know enough to say, as regards anything transcending our knowledge of Law, in which way we should view it —wihether as belonging to the system of Law, but to a region of it out of our sight, or as outside of that system, and as having the same immediate relation to God which the system of Law ultimately has." —P xxxv. C 2 20 THE REIGN OF LAW. special purposes, stands really in very close relationl ship to the converse notioi, that where the operation of natural causes can be clearly traced, there the exertion of Divine power and Wiill is rendered less certain and less convincing. This is the idea which lies at the root of Gibbon's famous chapters on the spread of Christianity. He labours to prove that it was due to natural causes. In proving this, he evidently thinks he is disposing of the notion that Christianity spread by Divine power; whereas he only succeeds in pointing out some of the means which were employed to effect a Divine purpose. In like manner, the preservation of the Jews as a distinct People during so many centuries of complete dispersion, is a fact standing nearly, if not absolutely, alone in the history of the world. It is at variance with all other experience of the laws which govern the amalgamation with each other of different families of the human race. The case of the Gipsies has been referred to as somewhat parallel. But the facts of this case are doubtful and obscure, and such of them as we know involve conditions altogether dissimilar in kind. It is not surprising, therefore, that the preservation of the Jews, partly from the relation in which it stands to the apparent fulfilment of Prophecy, and partly from the extraordinary nature of the fact itself, is tacitly assumed by many persons to come THE SUPERNATURAL. 21 strictly within the category of miraculous events. Yet in itself it is nothing more than a striking illustration how a departure from the " ordinary course of nature" may be effected through the instrumentality of means which are natural and comprehensible. An extraordinary resisting power has -been given to the Jewish People against those dissolving and disintegrating forces which have caused the disappearance of every other race placed under similar conditions. They have been torn from home and country, and removed, not in a body, but in scattered fragments, over the world. Yet they are as distinct from every other people now as they were in the days of Solomon. Nevertheless this resisting power, wonderful though it be, is the result of special laws, overruling those in ordinary operation. It has been effected by the use of means. Those means have been superhuman-they have been beyond human contrivance and arrangement. l'nut they belong to the region of the Natural. They belong to it not the less, but all the more, because in their concatenation and arrangement they seem to indicate the purpose of a living Will seeking and effecting the fulfilment of its designs. This is the manner after which our own living wills in their little sphere effect their little objects. Is it difficult to believe that after the same manner also the Divine Will, of which ours is the image only, works and effects its purposes? 22 THE REITGN OF LAW. Our own experience shows that the universal Reign of Law is perfectly consistent with a power of making those laws subservient to design-even when the knowledge of them is but slight, and the power over them slighter still. How much more easy, how much more natural, to conceive that the same universality is compatible with the exercise of that Supreme Will before mwhich all are known, and to which all are servants! What difficulty in this view remains in the idea of the Supernatural? Is it any other than the difficulty in believilng in the existence of a Supreme Will-in a living God? if this be the belief of which M. Guizot speaks when he says that it is essential to religion, then his proposition is unquestionably true. In this sense the difficulty of believing in the Supernatural, and the difficulty of believing in pure Theism, is one and the same. But if he means that it is necessary to religion to believe in even the occasional' violation of law,"-if he means that without such belief, signs and wonders cease to be evidences of Divine power,-tlhen he announces a proposition which cannot be sustained. There is nothing in. Religion incompatible with the belief that all exercises of God's power, whether ordinary or extraordinary, are effected through the instrumentality of means -that is to say, by the instrumentality of natural laws brought out, as it were, and used for a Divine purpose. To believe in 1!Ic' existence of miracles, we must indeed THE SUPERNATURAL, 23 believe in the Superhuman and in the Supermaterial. But both these are familiar facts in Nature. We must believe also in a Supreme Will and a Supreme Intelligence; but this our own Wills and our own Intelligence not only enable us to conceive of, but compel us to recognise in the whole laws and economy of Nature. Her whole aspect "answers intelligently to our intelligence-mind responding to mind as in a glass."' Once admit that there is a Being who-irrespective of any theory as to the relation in which the laws of Nature stand to His Will-has at least an infinite knowledge of those laws, and an infinite power of putting them to usethen miracles lose every element of inconceivability. In respect to the greatest and highest of all-that restoration of the breath of life which is not more mysterious than its original gift-there is no answer to the question which Paul asks, "Why should it be thought a thing incredibie by you that God should raise the dead?" This view of miracles is well expressed by Principal Tulioch: "The stoutest advocate of interference can mean nothing more than that the Supreme Will has so moved the hidden springs of nature that a new issue arises 1 "Beginning Life: Chapters for Young Men on Religion, Study, and Business. Chap. iii., Tlue Supernatural." By John Tullocbh D.D. Principal of St. Mary's College, St. Andrew's. Edinburgh, I86o. P. 29. 24 THE REIGN OF LAW. on given circumstances. The ordinary issue is supplanted by a higher issue. The essential facts before us are a certain set of phenomena, and a Higher Will moving them. How moving them? is a question for human definition; but the answer to which does not and cannot affect the Divine meaning of the change. Yet when we reflect that this Higher Will is everywhere reason and wisdom, it seems a juster as well as a more comprehensive view to regard it as operating by subordination and evolution rather than by'interference' or'violation.' According to this view, the idea of Law is so far from being contravened by the Christian miracles, that it is taken up by them and made their very basis. They are the expression of a Higher Law, working out its wise ends among the lower and ordinary sequences of life and history. These ordinary sequences represent nature-nature, however, not as an immutable fate, but a plastic medium through which a Higher Voice and Will are ever addressing us, and which, therefore, may be wrought into new issues when the Voice has a new message, and the Will a special purpose for us." 1 It is well worthy of remark, that Locke, who laid great stress on the Christian miracles, as attesting the authority of those who wrought them, declines, nevertheless, to adopt the common definition of that ill "BegiDning Life," &c. pp. 85, 86. By John Tulloclh, D.D, THE SUPERNATURAL. 25 which miraculous agency consists. A miracle then," he says,1 "I take to be a sensible operation, which, being above the comprehension of the spectator and, in his oipinion, contrary to the established course of nature, is taken by him to be Divine.'" And in reply to the objection, that this makes a miracle depend on the opinions or knowledge of the spectator, he points out that this objection cannot be avoided by any of the definitions commonly adopted; because "G it being agreed that a miracle must be that which surpasses the force of nature in the established steady laws of cause and effect, nothing can be taken to be a miracle but zehat is jzudged to exceed those laws. Now every one being able to judge of those laws only by his own acquaintance with nature, and his own notions of its force, which are different in different men, it is unavoidable that that should be a miracle to one man which is not so to another." In this passage Locke recognises the great truth, that we can never know what is above Nature unless we know all that is within Nature. But he misses another truth, quite as important,-that a miracle would still be a miracle even though we did know the laws through which it was accomplished, provided those laws, though not beyond human knowledge, were beyond human control. We might know the conditions necessary to the performance L C "A Discourse on Miracles." 26 THE REIGN OF LAW~ of a miracle, although utterly unable to bring those conditions about. Yet a work performed by the bringing about of conditions which are out of human reach, would certainly be a work attesting superhuman power. Nevertheless so deeply ingrained in popular theology is the idea that miracles, to be miracles at all, must be performed by some violation or suspension of the laws of Nature, that the opposite idea of miracles being performed by the use of means is regarded by many with jealousy and suspicion. Strange that it should be thought the safest course to separate as sharply and as widely as we can between what we are called upon to believe in Religion, and what we are able to trace or understand in Nature! With what heart can those who cherish this frame of mind follow the great argument of Butler? All the steps of that argument-the greatest in the whole range of Christian philosophy-are founded on the opposite belief, that all the truths, and not less all the difficulties of Religion, have their type and likeness in the "constitution and course of Nature." As we follow that reasoning, so simple and so profound, we find our eyes ever opening to some new interpretation of familiar facts, and recognising among the curious things of earth, one after another of the laws which, when told us of the spiritual world, seem so perplexing and so hard to accept or understand. To ask how much further this argu-ment of the " Analogy " is capable of illustration and THE SUPERNATURAL. 27 development, is to ask how much more we shall know of Nature. Like all central truths, its ramifications are infinite-as infinite as the appearance of variety, and as pervading as the sense of oneness in the universe of God. But what of Revelation? Are its history and doctrines incompatible with the belief that God uniformly acts through the use of means? The narrative of Creation is given to us in abstract only, and is told in two different forms, both having apparently for their main, perhaps their exclusive object, the presenting to our conception the personal agency of a living God. Yet this narrative indicates, however slightly, that room is left for the idea of a material process. " Out of the dust of the ground;" that is, out of the ordinary elements of Nature, was that Body formed which is still upheld and perpetuated by organic forces acting under the rules of Law. Nothing which Science has discovered, or can discover, is capable of traversing that simple narrative. On this subject M. Guizot lays great stress, as many others do, on what he calls the Supernatural in Creation, as distinguished from the operations now visible in Nature. "De quelle fagon et par quelle puissance le genre humain a-t-il commence sur la terre?" In reply to this question, he proceeds to argue that Man must have been the result either of mere material forces, or of a supernatural power exterior to, and superior to Matter. Spontaneous generation, he argues, supposing it to exist 2 8 STHE REIGN OF LAW.o at all, can give birth only to infant beings —to the first hours, and feeblest forms of nascent life, But Man-the human pair-must evidently have been complete from the first; created in the full possession of their powers and faculties. "C'est a cette condition seulement qu'en apparaissant pour la premiere fois sur la terre l'homme aurait pu y vivre-s'y perpetuer, et y fonder le genre humain. Evidemment l'autre origine du genre humain est seul admissible, seul possible. Le fait surnaturel de la creation explique seul la premiere apparition de l'homme ici-bas.' This is a common but not a very safe argument. If the Supernatural-that is to say, the Superhuman and the Supermaterial-cannot be found nearer to us than this, it will not be securely found at all. It is very difficult to free ourselves from this notion that by going far enough back, we can "find out God" in some sense in which we cannot find Him now. The certainty not merely of one, but of many successive Creations in the history of our Planet, and especially of a time comparatively recent, when Man did not exist, is indeed an effectual answer to the notion, if it be now ever entertained, of " all things having continued as they are since the Beginning." But those who believe that the existing processes of Nature can be accounted for by "Law," may believe that those processes were also commenced by the same vague and mysterious agency. To accept the primeval narrative of the Jewish Scrip. THE SUPERNATURAL. 2 9 tures as coming from authority, and as bringing before us the personal agency of the Creator, but without purporting to reveal the method of His work,-this is one thing. To argue that no other origin for the first parents of the human race is conceivable than that they were moulded perfect, without the instrumentality of any means,-this is quite another thing. The various hypotheses of Development, of which Darwin's theory is only a new and special version, whether they are probable or not, are at least advanced as affording a possible escape from the puzzle which M. Guizot puts. These hypotheses are indeed destitute of proof; and in the form which they hlave as yet assumed, it may justly be said that they involve such violations of, or departures from, all that we know of the existing order of things, as to deprive them of all scientific basis. But the close and mysterious relations between the mere animal frame of Man, and that of the lower animals, does render the idea of a common relationship by descent at least conceivable. Indeed, in proportion as it seems to approach nearer to processes of which we have some knowledge, it is, in a degree, more conceivable than Creation without any process,-of which we have no knowledge and can have no conception. But whatever may have been the method or process of Creation, it is Creation still. If it were proved to-morrow that the first man was "born" from some 30 THE REIGN OF LAW. pre-existing Form of Life, it would still be true that such a birth must have been, in every sense of the word, a new Creation. It would still be as true that God formed him C" out of the dust of the earth," as it is true that Tle has so formed every child who is now called to answer the first question of all theologies. And we must remember that the language of Scripture nowhere draws, or seems even conscious of, the distinction which modern philosophy draws so sharply between the Natural and the Supernatural. All the operations of Nature are spoken of as operations of the Divine Mind. Creation is the outward embodiment of a Divine idea. It is in this sense, apparently, that the narrative of Genesis speaks of every plant being formed "before it grew." But the same language is held, not less decidedly, of every ordinary birth. "Thine eyes did see my substance, yet being imperfect. In Thy book all my members were written, which in continuance were fashioned, when as yet there were none of them." And these words, spoken of the individual birth, have been applied not less truly to the modern idea of the Genesis of all Organic Life. Whatever mav have been the physical or material relation between its successive forms, the ideal relation has been now clearly recognised, and reduced to scientific definition. All the members of that frame which has received its highest interpretation in Marn, had existed, with lower offices assigned to them, in the animals THE SUPERNATURAL. 3I which flourished before Man was born. All theories of Development have been simply attempts to suggest the manner in which, or the physical process by means of which, this ideal continuity of type and pattern has been preserved. But whilst all these suggestions hlave been in the highest degree uncertain, some of them violently absurd, the one thing which is certain is the fact for which they endeavour to account. And what is that fact? It is one which belongs to the world of Mind, not to the world of Matter. When Professor Owen tells us, for example, that certain jointed bones in the Whale's paddle are the same bones which in the Mole enable it to burrow, which in the Bat enable it to fly, and in Man constitute his hand with all its wealth of functions, he does not mean that physically and actually they are the same bones, nor that they have the same uses, nor that. they ever have been, or ever can be, transferable from one kind of animal to another. He means that in a purely ideal or mental conception of the plan of all Vertebrate skeletons, these bones occupy the same relative place-relative, that is, not to origin or use, but to the Plan or conception of that skeleton as a whole. Here the Supermaterial, and in this sense the Super. natural, element, —that is to say, the ideal conformity and unity of conception, is the one unquestionable fact, in which we recognise directly the working of a Mind with which our own has very near relatiois. Here, as else. 32 THE REIGN OF LAW. where, we see the Natural, in the largest sense, including and embodying the Supernatural; the Material, including the Supermaterial. No possible theory, whether true or false, in respect to the physical means employed to preserve the correspondence of parts which runs through all Creation, can affect the certainty of that mental plan and purpose which alone makes such correspondence intelligible to us, and in which alone it may be said to exist. It must always be remembered that the two ideas, — that of a Physical Cause and that of a Mental Purpose,are not antagonistic; only the one is larger and more comprehensive than the other. Let us take a case. In many animal frames there are what have been called "silent members "'-members which have no reference to the life or use of the animal, but only to the general pattern on which all vertebrate skeletons have been formed. Mr. Darwin, when he sees such a member in any animal, concludes with certainty that this animal is the lineal descendant by ordinary generation of some other animal in which that member was not silent but turned to use. Professor Owen, taking a larger and wider view, would say, without pretending to explain /,ow its presence is to be accounted for physically, that the silent member has relation to a general purpose or plan which can be traced from the dawn of Life, but which did not receive its full accomplishment until Man was horn. This is certain: the other is a theory. The THE SUPERNATURAL. 33 assumed physical cause may be true or false. But in any case the mental purpose and design —the conformity to an abstract idea-this is certain. The relation in which created Forms stand to our own mind and to our understanding of their Purpose, is the one thing which we can surely know, because it belongs to our own consciousness. It is entirely independent of any belief we may entertain, or any knowledge we may acquire, of the processes employed for the fulfilment of that Purpose. And yet scientific men sometimes tell us that "we must be very cautious how we ascribe intention to Nature. Things do fit into each other, no doubt, as if they were designed; but all we know about them is that these correspondences exist, and that they seem to be the result of physical laws of development and growth." Very likely; but how these correspondences have arisen, and are daily arising, is not the question, and it is immaterial how that question may be answered. Do those correspondences exist, or do they not? The perception of them by our mind is as much a fact as the sight or touch of the things in which they appear. They may have been produced by growth-they may have been the result of a process of development,-but it is not the less the development of a mental purpose. It is the end subserved that we absolutely know. What alone is 34 THE REIGN OF LAW, doubtful and obscure is precisely that which we are told is the only legitimate object of our research,-viz., the means by which that end has been attained. Take one instance out of millions. The poison of a deadly snake — let us for a moment consider what this is. It is a secretion of definite chemical properties which have reference, not only-not even mainly-to the organism of the animal in which it is developed, but specially to the organism of another animal which it is intended to destroy. Some naturalists have a vague sort of notion that, as regards merely mechanical weapons, or organs of attack, they may be developed by use,-that legs may become longer by fast running, teeth sharper and longer by much biting. Be it so: this law of growth, if it exist, is but itself an instrument whereby purpose is fulfilled. But how will this law of growth adjust a poison in one animal with such subtle knowledge of the organisation of another that the deadly virus shall in a few minutes curdle the blood, benumb the nerves, and rush in upon the citadel of life? There is but one explanation —a Mind, having minute and perfect knowledge of the structure of both, has designed the one to be capable of inflicting death upon the other. This mental purpose and resolve is the one thing which our intelligence perceives with direct and intuitive recognition. The method of creation, by means of which TIHE SUPIERNATURAL. 35 this purpose has been carried into effect, is utterly unknown. It is no answer or objection to this view that poisons exist also in plants and minerals where no similar adjustment to function is perceived.' Even in these cases there are wonderful relations between our own human frame and many poisons of the mineral and vegetable world which render them invaluable agents in the mitigation of suffering and the prevention or removal of disease. It is impossible to believe that these complicated relations of action and reaction between things separated apparently from each other by the whole width of being, have been the result of forces with which Mind and Prevision have had no concern. But even if the use of such poisons were absolutely unknown-even if that use lay, which it does not, beyond thle possibility of our conception,-this would not deduct by the value of a fraction from the certainty of a conclusion which is founded on different conditions. The relations of adjustment between a given number of elements are none the less a certain fact because similar elements may be found elsewhere without any such adjustment being visible to us. It is the very fact of their not being, "To what intention are we to ascribe the poisons liberally distriluted through plants and minerals?" asks Mr. G. II. Lewes in his review of this work.-_ii-;g1Z "ly R'evicw, Jully i867, p. 1oo. D2 36 THE REIGN OF LAW. separate but combined in the one case which justifies and compels a conclusion different from that which arises in the other case. This is the law of evidence on which we act and judge in other matters with conviction which is both intuitive, and capable of being confirmed by the rules of reason. And this reply is applicable to all objections of the same kind. Those portions of the system of Nature which are wholly dark to us do not necessarily cast any shadow on those other portions of that system which are luminous with inherent light. Rather the other way. The shining tracts which thus reflect the light of Reason and of Mind send abundant rays into all the dark places round them. The new discoveries which Science is ever making of adjustments and combinations, of which we had no previous conception, impress us with an irresistible conviction that the same relations to Mind prevail throughout. It matters not in what department of investigation inquiry is conducted, it matters not what may be the Philosophy or Theology of the inquirer. Every step he takes he finds himself face to face with facts which he cannot describe intelligibly either to him. self or others, except by referring themn to that function and power of Mind which we know as Purpose and Design. Perhaps no illustration more striking of this principle TIHE SUPERNATURAL, 37 was ever presented than in the curious volume published by Mr. Darwin on the "' Fertilisation of Orchids."l It appears that the fertilisation of almost all Orchids is dependent on the transport of the pollen from one flower to another by means of insects. It appears, further, that the structure of these flowers is elaborately contrived, so as to secure the certainty and effectiveness of this operation. Mr. Darwin's work is devoted to tracing in detail what these contrivances are. To a large extent they are purely mechanical, and can be traced with as much clearness and certainty as the different parts of which a steam-engine is composed. The complication and ingenuity of these contrivances almost exceed belief. 6 "Moth-traps and spring-guns set on these grounds," might be the motto of the Orchids. There are baits to tempt the nectar-loving Lepidoptera, with rich odours exhaled at night, and lustrous colours to shine by day; there are channels of approach along which they are surely guided, so as to compel them to pass by certain spots; there are adhesive plasters nicely adjusted to fit their probosces, or to catch their brows; there are hair triggers carefully set in their necessary path, communicating with explosive shells, which project the pollen1 "On the various Contrivances by which British and Foreign Orchids are fertilised by Insects." By Charles Darwin, F.R S. London, I862. 33 TIIE REIGN OF LAW. stalks with unerring aim upon their bodies. There are, in short, an infinitude of adjustments, for an idea of which I must refer my readers to Mr. Darwin's inimitable powers of observation and description-adjustments all contrived so as to secure the accurate conveyance of the pollen of the one flower to its precise destination in the structure of another. Now there are two questions which present themselves when we examine such a mechanism as this. The first is, What is the use of the various parts, or their relation to each other with reference to the purpose of the whole? The second question is, How were those parts made, and out of what materials? It is the first of these questions-that is to say, the use, object, intention, or purpose of the different parts of the plantwhich Darwin sets himself instinctively to answer first; and it is this which he does answer with precision and success. The second question,-that is to say, how those parts came to be developed, and out of what 6" primordial elements" they have been derived in their present shapes, and converted to their present usesthis is a question which Darwin does also attempt to solve, but the solution of which is in the highest degree difficult and uncertain. It is curious to observe the language which this most advanced disciple of pure naturalism instinctively uses when he has to describe the THE SUPERNATURAL. 39 complicated structure of this curious order of plants. " Caution in ascribing intentions to nature," does not seem to occur to him as possible. Intention is the one thing which he does see, and which, when he does not see, he seeks for diligently until he finds it. He exhausts every form of words and of illustration by which intention or mental purpose can be described. "s Contrivance "" curious contrivance "-" beautiful contrivance,"-these are expressions which recur over and over again. Here is one sentence describing the parts of a particular species: ", the Labellum is developed into a long nectary, in order to attract Lepidoptera, and we shall presently give reasons for suspecting that the nectar is pzrposeZy so lodged that it can be sucked only slowly, in order to give time for the curious chemical quality of the viscid matter setting hard and dry." Nor are these words used in any sense different from that in which they are applicable to the works of Man's contrivance — to the instruments we use or invent for carrying into effect our own preconceived designs. On the contrary, human instruments are often selected as the aptest illustrations both of the object in view, and of the means taken to effect it. Of one particular structure, Mr. Darwin says: "This contrivance of the guiding ridges may be compared to the little instrument sometimes 1 p. 29. 410 TI-IE REIGN OF LAWIV used for guiding a thread into the eye of a needle." Again, referring to the precautions taken to compel the insects to come to the proper spot, in order to have the "pollinia" attached to their bodies, Mr. Darwin says: "Thus we have the rostellum partially closing the mouth of the nectary, iZe a trap _p/aced in a run for ganme,-and the trap so complex and perfect e" 1 But this is not all The idea of special use, as the controlling principle of construction, is so impressed on Mr. Darwin's mind, that, in every detail of structure, however singular or obscure, he has absolute faith that in this lies the ultimate explanation. If an organ is largely developed, it is because some special purpose is to be fulfilled. If it is aborted or rudimentary, it is because that purpose is no longer to be subserved. In the case of another species whose structure is very singular, Mr. Darwin had great difficulty in discovering how the mechanism was meant to work, so as to effect the purpose. At last he made it out, and of the clue which led to the discovery he says: "The strange position of the Labellum perched on the summit of the column, ought to have shown me that here was the place for experiment. I ought to have scorned the notion that the Labellum was thus placed for no good pur~pose. I neglected this plain guide, and for a long time completely failed to understand the flower." 2 ra, 30. 2 P. 253. THE SUPERNATURAL, 4I An attempt has, indeed, been made to explain away Mr. Darwin's language in such cases as " metaphorical." But this explanation is powerless to expel from that language the inference it involves. Indeed, it is an explanation which only repeats the same idea in another form. The very essence of a metaphor is that it expresses the resemblances of things. But it is in seeing the resemblances, and in seeing the correlative differences of things, that all knowledge consists. This perception is the raw material of Thought — it is the foundation of all intellectual apprehension. In proportion as resemblances are complete, the language which expresses those resemblances is the language of truth. Such language very often carries within it the most certain conclusions which are accessible to reason. One mind looking at the workings of another mind can see likeness of agency only by recognising likeness in the processes of thought. That likeness can only be expressed in words which convey the idea of it to other minds. But in this sense all language is metaphorical. The commonest words we use to indicate ideas are essentially metaphorical, bringing home into the world of Mind images 1 Quarlterly YozurnaZ of Science, Oct. I867. "' Creation by Law," by Alfred Wallace. " Mr. Darwin has laid himself open to much misconception, and has given to his opponents a powerful. weapon by his continual use of metaphor in describing the wonderful co. adaptations of organic beings."-P. 473. a4 THIE REIGN OF LAW. derived from material force, and carrying forth again into the outward world conceptions born of that mental power which alone is capable of conceiving. In one aspect, all human speech is what the Poet calls it, "s Matter-moulded forms of speech." 1 In another aspect it is all spirit-mouldled, since we can only think of 1Matter in the light of those impressions which it has power to make on Mind. All language is thus but a system of signs whereby we express the analogies-the differences and resemblances perceived by us in those two great departments of Nature of which the union and the separation are both imaged in ourselves-that is, in the union and in the difference of the Body and the MIind. The most absolute certainties we can ever know are only known by the translation of ideas or conceptions from one of these departments to the other, and the language in which these certainties are expressed carries, and must carry, signs of this origin in itself. The question, therefore, in respect to Mr. Darwin's language, is not whether it is'l"metaphorical "-that is, whether it applies to material phenomena conceptions derived from the world of Mind. This, of course, it does, and in the nature of the case it must do. But the question is, whether the correspondence it expresses between the order of thcse material phenomena and a known order d'In Memnoriaml) xciv, THE SUPERNATURAL. 43 of Thought is or is not a real correspondence, and one, therefore, indicating the known effects of a known originating cause. And here it is well worthy of observation, that although Purpose and Intention are, of course, involved in all mental operations, yet the conception of contrivance is not the only mental conception which, in like manner, is recognised as constituting the order of natural phenomena. Other conceptions equally familiar to the mind of Man are instinctively recognised by all Naturalists who bring high intellectual powers into that contact with Nature which consists in close and thoughtful observation of her facts. Other mental conceptions, such as those of Number and Proportion, are then found to emerge, and make an ineffaceable impression on the mind which sees them. Thus, when we come to the second part of Mr. Darwin's work, viz. the Homology of the Orchids, we find that the inquiry divides itself into two separate questions,-first, the question what all these complicated organs are in their primitive relation to each other; and, secondly, how these successive modifications have arisen, so as to fit them for new and changing uses. Now, it is very remarkable that of these two questions, that which may be called the most abstract and transcendental-the most nearly related to the Supernatural and the SupeFr 44 THE REIGN OF LAW. material-is again precisely the one which Darwin is able to solve most clearly. We have already seen how well he solves the first question-What is the use and intention of these various parts? The next question is, What are these parts in their primal order and conception? The answer is, that they are members of a numerical group, having a definite and still traceable order of symmetrical arrangement. They are expressions of a numnerical idea, as so many other things — perhaps as all things-of beauty are. Mr. Darwin gives a diagram, showing the primordial or archetypal arrangement of Threes within Threes, out of which all the strange and marvellous forms of the Orchids have been developed, and to which, by careful counting and dissection, they can still be ideally reduced. But when we come to the last question-By what process of natural consequence have these elementary organs of Three within Three been developed into so many various forms of beauty, and made to subserve so many curious and ingenious designs?-we find nothing but the vaguest and most unsatisfactory conjectures. Let us take one in. stance as an example. There is a Madagascar Orchis — the " Angrecumn sesquipedale " —with an immensely long and deep nectary. How did such an extraordinary organ come to be developed? Mr. Darwin's explanation is this The pollen of thllis floer can only be removed by TiIE SUPERNATURAL. 45 the proboscis of some very large Moth trying to get at the nectar at the bottom of the vessel. The Moths with the longest probosces would do this most effectually; they would be rewarded for their long noses by getting the most nectar; whilst, on the other hand, the flowers with the deepest nectaries would be the best fertilised by the largest Moths preferring them. Consequently, the deepest-nectaried Orchids, and the longest-nosed Moths, would each confer on the other a great advantage in the " battle of life." This would tend to their respective perpetuation, and to the constant lengthening of nectaries and of noses. But the passage is so curious and characteristic, that it is well to give Mr. Darwin's own words:As certain Moths of Madagascar became larger, through natural selection in relation to their general conditions of life, either in the larval or mature state, or as the proboscis alone was lengthened to obtain honey from the Angrncum, those individual plants of the Angrmecum which had the longest nectaries, (and the nectary varies much in length in some Orchids,) and which, consequently, compelled the Moths to insert their probosces up to the very base, would be the best fertilised. These plants would yield most seed, and the seedlings would generally inherit longer nectaries; and so it would be in successive generations of the plant and 46 THE REIGN OF LAW. Moth. Thus it would appear that there has been a race in gaining length between the nectary of the Angrmcur and the proboscis of certain Moths; but the Angraecum has triumphed, for it flourishes and abounds in the forests of Madagascar, and still troubles each ijoth to insert its proboscis as far as possible in order to drain the last drop of nectar...... We can thus," says Mr. Darwin, "par/ially understand how the astonishing length of the nectary may have been acquired by successive modifications." It is indeed but a "partial" understanding.' How came this Orchis to require any exact adjustment between the length of its nectary and the proboscis of an insect? This is not a general necessity even among the Orchids. "In the British species, such as Orchis Pyramidalis, it is not necessary that any such adjustment should exist, and thus a number of insects of various sizes are found to carry away the pollinia, and aid in the fertilisation." 2 This would obviously be the most favourable condition for all Orchids in the battle of life. Does not the hypothesis, then, begin by assuming the very i The passage which follows I have added to meet the objection taken by Mr. Wallace, that I have "not shown what point the explanation fails to meet." A sample only of such points can be given here. See also Note A. 2' Creation by Law." G. A. R. Wallace. auranal of Sciene, October r367, p. 475. THE SUPERNATURAL. 47 condition of things for which it professes to account? We must start with this Madagascar Orchis already in possession of a larger nectary than other species, and with a structure already depending on particular Moths also already existing, and already provided with probosces of nicely adjusted length. If the nectaries began first to lengthen, how came the 3Moths not to leave them for other flowers? And if, on the contrary, they began to shorten, how came they not to be favoured and resorted to by other Moths of a smaller size? Can we assume that somehow there were always ready some Moths still larger to favour the longer variety, and that somehow also there were no smaller Moths to favour the shorter? Why should the race in tihis pvarlicular spccies be always in the direction of nectaries getting longer, and not rather in the direction of nectaries getting shorter? Obviously the same hypothesis might be so turned as to account for either result with equal ease, and therefore it does not account at all for one of those results as against the other. And then there is 1 Mr. Wallace sees no difficulty whatever in making any supposi. tion of-this kind which the Theory may require. "Now let us start," he says, " from the time when the nectary was only half its present length, or about six inches, and was chiefly fertilized by a pspecies of Moth which aApeared at the time of the fanlats flozcer'iuff and cl.'eaxto tQis-ads was sl nt mme &nhh"-t4 i-bid, p. 4 75. 43 THEI-I REIGN OF LAW0 a larger question than any of these which remains behind. How came Orchids to be dependent at all upon insects for fertilisation? It cannot be argued that this is a necessity arising mechanically from the nature of things, because, as we are truly told by an eminent naturalist who warmly supports the Darwinian hypothesis, "exactly the same end is attained in ten thousand other flowers" which do not possess the same structure.1 But what is the bearing of this fact upon the theory? Is it not this-that the origin of such curious structures, and complicated relations, cannot be accounted for on any principle of mere mechanical necessity? Elementary forces may indeed always be detected, for they are always present. But the manner in which they are worked irresistibly suggests some directing power, having as one of its aims mere increase and variety in that ocean of enjoyment which constitutes the sum of Organic Life. Some idea of this kind, however unconsciously, however reluctantly conceded, lurks in every form of words in which the facts of science can be generalised to the mind. Thus we find Mr. Wallace himself saying, in the same paper in which he regrets the language of Mr. Darwin, that the conception he prefers is, that the " contrivances" referred to "are some of the results of those general laws which I II Creation by Law," p. 474. TIlE SUPERNATURAL. 49 were so co-ordintated at the first introduction of Life upon the earth, as to result necessarily in the utmost possible development of varied forms." Eliminating the word "necessarily," which, if it has any meaning, does not apply, as we have seen, to the case of the Orchids, this language presents an intelligible idea. It satisfies the mind precisely in proportion as it brings into view, however distant, the attributes of Mind, and gives us a glimpse of " the reason why." The pIroduction of variety in beauty and in enjoyment is the pur'pose which those words suggest. In like proportion is Mr. Darwin's language the truest and the best. His explanations of the mechanical methods by which a wonderful Orchis has come to be are indeed, as he himself says, with great candour, "partial" and partial only. How different from the clearness and the certainty with which Mr. Darwin is able to explain to us the use and intention of the various organs! or the primal idea of numerical order and arrangement which governs the whole structure of the flower! It is the same through all Nature. Purpose and intention, or ideas of order based on numerical relations, are what meet us at every turn, and are more or less readily recognised by our own intelligence as corresponding to conceptions familiar to our own minds. We know, too, that these purposes and ideas are not our own, but the ideas and purposes of Another —of lne whole manifestations are indeed Ers 53 TTIE REIGN OF I,AVu., superhuman and supermnaterial, but are not'supernatural," in the sense of being strange to Nature, or in violation of it. The truth is, that there is no such distinction between what we find in Nature, and what we are called upon to believe in Religion, as that which men pretend to draw between the Natural and the Supernatural. It is a distinction purely artificial, arbitrary, unreal. Nature presents to our intelligence, the more clearly the more we search her, the designs, ideas, and intentions of some 66 Living Will that shall endure. When all that seems shall suffer shock." Religion presents to us that same Will, not only working equally through the use of means, but using means which are strictly analogous —referable to the same general principles-and which are constantly appealed to as of a sort which we ought to be able to appreciate, because wve ourselves are already familiar with the like. Religion makes no call on us to reject that idea, which is the only idea some men can see in Nature-the idea of the universal Reign of Law- the necessity of conforming to it-the limitations which in one aspect it seems to place on the exercise of Will,-the essential basis, in another aspect, which it supplies for all the functions of Volition. On the contrary, the high regions into which this idea is found extending, and the mattera THUE SUPlERNATURAL. 51 over which it is found prevailing, is one of the deepest mysteries both of Religion and of Nature. We feel sometimes as if we should like to get afove this rule-into some secret Presence where its bonds are broken. But no glimpse is ever given us of anything, but " Freedom within the bounds of Law." The Will revealed to us in Religion is not-any more than the Will revealed to us in Nature-a capricious Will, but one with which, in this respect, " there is no variableness, neither shadow of turning." We return, then, to the point fromn which we started. M. Guizot's affirmation that belief in the Supernatural is essential to all Religion is true only when it is understood in a special sense. Belief in the existence of a Living Will-of a Personal God-is indeed a requisite condition. Conviction " that He is " must precede the conviction that " He is the rewarder of those that diligently seek Him." But the intellectual yoke involved in the common idea of the Supernatural is a yoke which. men impose upon themselves. Obscure thought and confused language are the main source of difficulty. Assuredly, whatever may be the difficulties of Christianity, tzis is not one of them, —that it calls on us to believe in any exception to the universal prevalence and power of Law. Its leading facts and doctrines are directly connected with this belief, and directly suggestive of it. The Divine mission of Christ on earth-e 52 THE REIGN OF LAW. does not this imply not only the use of means to an end, but some inscrutable necessity that certain means, and these only, should be employed in resisting and overcoming evil? What else is the import of so many passages of Scripture implying that certain conditions were required to bring the Saviour of Man into a given relation with the race He was sent to save? "It behoved Him... to make the Captain of our Salvation perfect thlrough suffering." "It behoved Him in all things to be made like unto His brethren, taict He might be," &c. —with the reason added: "for in ta/zt He Himself hath suffered being tempted, He is able to succour them that are tempted." Whatever mnore there may be in such passages, they all imply the universal reign of Law in the moral and spiritual, as well as in the material w-orld: that those laws had to be-behoved to beobeyed; and that the results to be obtained are brought about by the adaptation of means to an end, or, as it were, by way of natural consequence from the instrumentality employed. This, however, is an idea which systematic theology generally regards with intense suspicion, though, in fact, all theologies involve it, and build upon it. But then they are very apt to give explanations of that instrumentality which have no counterpart in the material or in the moral world. Perhaps it is not too much to say that the manifest decay which so many creeds and confessions are now suffering, arises THE SUPIRNATURAL. 53 mainly from the degree in which at least the popular expositions of them dissociate the doctrines of Christianity from the analogy and course of Nature. There is no such severance in Scripture-no shyness of illustrating Divine things by reference to the Natural. On the contrary, we are perpetually reminded that the laws of the spiritual world are in the highest sense laws of Nature, whose obligation, operation, and effect are all in the constitution and course of things. Hence it is that so much was capable of being conveyed in the fcrm of parable —the common actions and occurrences of daily life being often chosen as the best vehicle and illustration of the highest spiritual truths. It is not merely, as Jeremy Taylor says, that "all things are full of such resemblances," —it is more than this —more than resemblance. It is the perpetual recurrence, under infinite varieties of application, of the same rules and principles of Divine government,-of the same Divine thoughts, Divine purposes, Divine affections. Hence it is that no verbal definitions or logical forms can convey religious truth with the fulness or accuracy which belongs to narratives taken from Nature-Man's nature and life being, of course, included in the term: 64 And so, the Word had hreath, and wrought With human hands the Creed of creeds." 1 1 Tennyson's "In Memoriam." TIlE REIGN OF LAW. The same idea is expressed in thle passionate exclamation of Edward Irving:-" We must speak in parables, or we must present a wry and deceptive form of truth; of whlich. choice the first is to be preferred, and our Lord adopted it. Because parable is truth veiled, not truth dismermbered; and as the eye of the understanding grows more piercing, the veil is seen through, and the truth stands revealed." Nature is the great Parable; and the truths which she holds within her are veiled, but not dismembered. The pretendcd separation between. that which lies within Nature and that which lies beyond Nature is a dismemberment of the truth. Let both those who find it difficult to believe in anythilng which is " above" the Natural, and those who insist on that belief, first determine how far the Natural extends. Perhlaps in going round these marches they will find themselves meeting upon common ground. For, indeed, long before we have searchled out all that the Natural includes, there will remain little in the so-called Supernatural which can seem hard of acceptance or beliefnothing which is not rather essential to our understand. ing of this otherwise "unintelligible world'3 CHAPTER IL LAW — ITS DEFINITIONS. T'HE Reign of Law-is this, then, the reign under w- Which we live? Yes, iin a sense it is. There is no denying it. The whole world around us, and the whole world within us, are rI'lted by Law. Our very spirits are subject to it-those spirits which yet seem so spiritual, so subtle, so free. H-low often in the darkness do they feel the restraining walls —bou1-x(s within which they move-conditions out of Mwhich they cannot think! The perception of th-is is gr-owing in the consciousness of men. It grows with the growth of knowledge; it is the delight, the reward, tie goal of Science. From Science it passes into every domain of thought, and invades, amongst others, the Theclogy of the Church. And so we see the men of Theology coming out to parley with the men of Science,-a white flag in their hands, and saying, "6 If you will let us alone we will do the same by you. Keep to your own province, do not enter ours. The Reign of Law which 5 6 THE REIGN OF LAW. you proclaim, we admit —outside these walls, but not within them:-let there be peace between us." But this will never do. There can be no such treaty dividing the domain of Truth. Every one Truth is connected with every other Truth in this great Universe of God. The connexion may be one of infinite subtlety, and apparent distance-running, as it were, underground for a long way, but always asserting itself at last, somewhere, and at some time. No bargaining, no fencing off the ground-no form of process, will avail to bar this right of way. Blessed right, enforced by blessed power! Every truth, which is truth indeed, is charged with its own consequences, its own analogies, its own suggestions. These will not be kept outside any artificial boundary; they will range over the whole Field of Thought, nor is there any corner of it from which they can be warned away. And therefore we must cast a sharp eye indeed on every form of words which professes to represent a scientific truth. If it be really true in one department of thought, the chances are that it will have its bearing on every other. And if it be not true, but erroneous, its effect will be of a corresponding character; for there is a brotherhood of Error as close as the brotherhood of Truth. Therefore, to accept as a truth that which is not a truth, or to fail in distinguishing the sense in LAW;-ITS DEFINITIONS. 5 7 which a proposition may be true, from other senses in vwhich it is not true, is an evil having consequences which are indeed incalculable. There are subjects on which one mistake of this kind will poison all the wells of truth, and affect with fatal error the whole circle of our thoughts. It is against this danger that some men would erect a feeble barrier by defending the position, that Science and Religion may be, and ought to be, kept entirely separate;-that they belong to wholly different spheres of thought, and that the ideas which prevail in the one province have no relation to those which prevail in the other. This is a doctrine offering many temptations to many minds. It is grateful to scientific men who are afraid of being thought hostile to Religion.: It is grateful to religious men who are afraid of being thought to be afraid of Science. To these, and to all who are troubled to reconcile what they have been taught to believe with what they have come to know, this doctrine affords a natural and convenient escape. There is but one objection to it-but that is the fatal objection-that it is not true. The spiritual world and the intellectual world are not separated after this fashion: and the notion that they are so separated does but encourage men to accept in each, ideas which will at last be found to be false in both. The truth is, that 53' THE REIGN OF LAWE there is no branch of human inquiry, however purely physical, which is more than the word " branch" implies; —none which is not connected through endless ramifications with every other, —and especially that which is the root and centre of them all. If lIe who formed the mind be one with Him who is the Orderer of all things concerning which that mind is occupied, there can be no end to the points of contact between our different conceptions of them, of Him, and of ourselves. The instinct which impels us to seek for harmony in the truths of Science and the truths of Religion, is a higher instinct and a truer one than the disposition which leads us to evade the difficulty by pretending that there is no relation between them. For, after all, it is a pretence and nothing more. No man who thoroughly accepts a principle in the philosophy of Nature which lhe feels to be inconsistent with a doctrine of Religion, can help having his belief in that doctrine shaken and undermined. We may believe, and we must believe, both in Nature and Religion, many things which we cannot understarnd; but we cannot really believe two propositions which are felt to be contradictory, It helps us nothing in such a difficulty, to say that the one proposition belongs to Reason and the other proposition belongs to Faith, The endeavour LAW;-ITS DEFINITIONS. 5$9 to reconcile them is a necessity of the mind. We are right in thinking that, if they are both indeed true, they can be reconciled, and if they really are fundamentally opposed, they cannot both be true. That is to say, there must be some error in our manner of conception in one or in the other, or in both. At the very best, each can represent only some partial and imperfect aspect of the truth. The error may lie in our Theology, or it may lie in what we are pleased to call our Science. It may be that some dogma, derived by tradition from our fathers, is having it; hollowness betrayed by that light which sometimes shines upon the ways of God out of a better knowledge of His works. It may be that some proud and rash generalisation ol the schools is having its falsehood proved by the vioience it does to the deepest instincts of our spiritual nature,-to'Truths which wale to perish never! Which neither man nor boy, Nor all that is at enmity with joy, Can utterly abolish or destroy." 1 Such, for example, is the conclusion to which the language of some scientific men is evidently pointing, that great general Laws inexorable in their operation, I " Ode to Immortality, from the Recollections of early Child, hood. "-Wordsworth. 60 THE REIGN OF LAW. and Causes in endless chain of invariable sequence, are the governing powers in Nature, and that they leave no room for any special direction or providential ordering of events. If this be true, it is vain to deny its bearing on Religion. What then can be the use of prayer? Can Laws hear us? Can they change, or can they suspend themselves? These questions cannot but arise, and they require an answer. It is said of a late eminent Professor and clergyman of the English Church, who was deeply imbued with these opinions on the place occupied by Law in the economy of Nature, that he went on, nevertheless, preaching high doctrinal sermons from the pulpit until his death. He did so on the ground that propositions which were contrary to his reason were not necessarily beyond his faith. The inconsistencies of the human mind are indeed unfathomable; and there are men so constituted as honestly to suppose that they can divide themselves into two spiritual beings, one of whom is sceptical, and the other is believing. But such men are rare-happily for Religion, and not less happily for Science. No healthy intellect, no earnest spirit, can rest in such selfbetrayal. Accordingly we find many men now facing the consequences to which they have given their intellectual assent, and taking their stand upon the ground that prayer to God has no other value or effect than so far LAW — ITS DEFINITIONS. 6I as it may be a good way of preaching to ourselves. It is a useful and helpful exercise for our own spirits, but it is nothing more. But how, can they pray who have come to this? Can it ever be useful or helpful to be. lieve a lie? That which has been threatened as the worst of all spiritual evils, would then become the conscious attitude of our "religion," the habitual condition of our worship. This must be as bad science, as it is bad religion. It is in violation of a Law the highest known to Man-the Law which inseparably connects earnest conviction of the truth in what we do or say, with the very fountains of all intellectual and moral strength. No accession of force can come to us from doing anything in which we disbelieve. Such a doctrine will be indeed " The little rift within the lute That by and by will make the music mute, And ever widening slowly silence all." 1 if there is any helpfulness in Prayer even to the Mind itself. that helpfulness can only be preserved by showing that the belief on which this virtue depends is a rational belief. The very essence of that belief is this —that the Divine Mind is accessible to supplication, and that the Divine Will is capable of being moved I "Idylls of the King —Vivien."-Tennyson. 0(;2 THE REIGN OF LAW. thereby. No question is, or indeecd can be, raised as to the powerful effect exerted by this belief on Ailan's nature. That effect is recognised as a fact. Its value is admitted; and in order that it may not be lost, the compromise now offered by some philosophers is thisthat although the course of external nature is unalterable, yet possibly the phenomena of Mind and character may be changed by the Divine Agency. But will this reasoning bear analysis? Can the distinction it assumes be maintained? Whatever difficulties there may be in reconciling the ideas of Law and of Volition, they are difficulties which apply equally to the Worlds of Matter and of Mind. The Mind is as much subject to Law as the Body is, The Reign of Law is over all; and if its dominion be really incompatible with the agency of Volition, Human or Divine, then the Mind is as inaccessible to that agency as material things. It would indeed be absurd to affirm that all Prayers are equally rational or equally legitimate. Most true it is that'"we know not what we should pray for as we ought." Prayer does not require us to believe that anything can be dloi-ne witihout the use of means; neither does it require us to believe that anything will be done in violation of thle Universal Order. " If it be possible," was the qualification used in the most solemn Prayer ever uttered ulpon Earth. What are and what are not legin LAW;-ITS DEFINITIONS. 63 timate objects of supplication, is a question which may well be open. But the question now raised is a wider one than this-even the question whether the very idea of Prayer be not in itself absurd-whether the Reign of Law does not preclude the possibility of AWill affecting the successive phenomena either of Matter or of Mind. This is a question lying at the root of our whole conceptions of the Universe, and of all our own powers, both of thinking and of acting. The freedom which is denied to God is not likely to be left to Man. We shall see, accordingly, that precisely the same denials are applied to both. The conception of Natural Laws-of their place, of their nature, and of their office-which involves us in such questions, and which points to such conclusions, demands surely a very careful examination at our hands. What, then, is this Reign of Law? What is Law, and in what sense can it be said to reign? Words, which should be the servants of Thought, are too often its masters; and there are very few words which are used more ambiguously, and therefore more injuriously, than the word "Law." It may indeed be legitimately used in several different senses, because in all cases as applied in Science it is a metaphor, and one which has relation to many different kinds and degrees 64 TIHE REIGN OF LAW. of likeness in the ideas which are compared. It matters little in which of these senses it is used, provided the distinctions between them are kept clearly in view, and provided we watch against the fallacies which must arise when we pass insensibly from one meaning to another. And here it may be observed, in passing, that the metaphors which are employed in Language are generally founded on analogies instinctively, and often unconsciously, perceived, and which would not be so perceived if they were not both deep and true. In this case the idea which lies at the root of Law in all its applications is evident enough. In its primary signification, a " law" is the authoritative expression of human Will enforced by Power. The instincts of mankind finding utterance in their language, have not failed to see that the phenomena of Nature are only really conceivable to us as in like manner the expressions of a Will enforcing itself with Power. But, as in many other cases, the secondary or derivative senses of the word have supplanted the primary signification; and Law is now habitually used by men who deny the analogy on which that use is founded, and to the truth of which it is an abiding witness. It becomes therefore all the more necessary to define the secondary senses with precision. There are at least Five different senses in which Law is habitually used, and these must be carefully distinguished: LAW;-ITS DEFINITIONS. 6 5 First, We have Law as applied simply to an observed Order of facts. Secondly, To that Order as involving the action of some Force or Forces of which nothing more may be known. Thirdly, As applied to individual Forces the measure of whose operation has been more or less defined or ascertained. Fourthly, As applied to those combinations of Force which have reference to the fulfilment of Purpose, or the discharge of Function. Fifthly, As applied to Abstract Conceptions of the mind —not corresponding with any actual phenomena, but deduced therefrom as axioms of thought necessary to our understanding of them. Law, in this sense, is a reduction of the phenomena, not merely to an Order of facts, but to an Order of Thought. These great leading significations of the word Law all circle round the three great questions which Science asks of Nature, the What, the How, and the Why:(I) What are the facts in their established Order? (2) How-that is, from what physical causes,-does that Order come to be? (3) Why have these causes been so combined? What relation do they bear to Purpose, to the fulfilment of iltention, to the discharge of Function? 6 6 THE REIGN OF LAW. It is so important that these different senses of the word Law should be clearly distinguished, that each of them must be more fully considered by itself. The First and, so to speak, the lowest sense in which Law is applied to natural phenomena is that in which it is used to express simply " an observed Order of facts "that is to say, facts which under the same conditions always follow each other in the same order. In this sense the laws of Nature are simply those facts of Nature which recur according to a rule. It is not necessary to the legitimate application of Law in this sense, that the cause of any observed Order of facts should be at all known, or even guessed at. The Force or Forces to which that Order is due may be hid in total darkness. It is sufficient that the Order or sequence of phenomena be uniform and constant. The neatest and simplest illustration of this, as well as of the other senses in which Law is used, is to be found in the exact sciences, and especially in the history of Astronomy. It is nearly 25qo years since Kepler discovered, in respect to the distances, velocities, and orbits of the Planets, three facts, or rather three series of facts, which, during many yearsi of intense application to physical inquiry, remained the highest truths known to Man on the phenoI The II Third Law" of Kepler was made known to the world in I619. Newton's'r!Principlia" appeared in I687. LAW; —ITS DEFINITIONS 67 meona of the Solar System. They were known as the Three Laws of Kepler. It is not necessary to describe in detail here what these laws were. Suffice it to say, that the most remarkable among them were facts of constant numerical relation between the distances of the different Planets from the Sun, and the length of their periodic times; and again, between the velocity of their motion and the space enclosed within certain corresponding sections of their orbit. These Laws were simply and purely an "Order of facts" established by observation, and not connected with any known cause. The Force of which that Order is a necessary result had not then been ascertained. A very large proportion of the laws of every science are laws of this kind and in this sense. For example, in Chemistry the behaviour of different substances towards each othier, in respect to combination and affinity, is reduced to syste-m under laws of this kind, and of this kind only. Because, although there is a probability that Electric or Galvanic Force is the cause, or one of the causes, of the series of facts exhibited in chemical phenomena, this is as yet no better than a probability, and the laws of Chemistry stand no higher than facts rwhlich by observation and experiment are found to follow certain rules. But the ascertainment of a law in this Fiist and lower sense leads immediately and instinctively tbo llLh F 2 63 THE REIGN OF LAW. search after Law in another sense which is higher. An observed Order of facts, to be entitled to the rank of a Law, must be an Order so constant and uniform as to indicate necessity, and necessity can only arise out of the action of some compelling Force. Law, therefore, comes to indicate not merely an observed Order of facts, but that Order as involving the action of some Force or Forces, of which nothing more may be known than these visible effects. Every observed Order in physical phenomena suggests irresistibly to the mind the operation of some physical cause. We say of an observed Order of facts that it must be due to some "5 law," meaning simply that all Order involves t'-e idea of some arranging cause, the working of some Force or Forces (whether they be such as we can further trace and define or not) of which that Order is the index and the result. This is the Second of the five senses speci.fled above. And so we pass on, by an easy and natural transition, to the Third sense in which the word Law is used. This is the most exact and definite of all. The mere general idea that some Force is at the bottom of all phenomena, which are invariably consecutive, is a very different thing from knowing what that Force is in respect to the rule or measure of its operation. Of Law in this sense the one great example, before and above all LAW;-ITS DEFINITIONS. 69 others, is the Law of Gravitation, for this is a Law in the sense not mierely of a rule, but of a cause —that is, of a Force accurately defined and ascertained according to the measure of its operation, from vwhich Force other phenomena arise by way of necessary consequence. Force is the root-idea of Law in its scientific sense. And so the Law of Gravitation is not merely the "observed order" in which the heavenly bodies move; neither is it only the abstract idea of some Force to which such movements must be due, but it is that Force the exact measure of whose operation was numerically ascertained or defined by Newton - the Force which compels those movements and (in a sense) explains them. Now the difference between Law in the narrower and Law in the larger sense cannot be better illustrated than in the difference between the Three special Laws discovered by Kepler, and the One universal Law discovered by Newton. The Three Laws of Kepler were, as we have seen, simply and purely an observed Order of facts. They stood by themselves — disconnected,-their cause unknown. The higher Law, discovered by Newton, revealed their connexion and their cause. The " observed Order" which Kepler had discovered, was simply a necessary consequence of the Force of Gravitation. In the light of this great Law the " Three Laws of Kepler" have been merged and lost, 70 THE REIGN OF LAW. When the operations of any material Force can be reduced to rules so definite as those which have been discovered in respect to the Force of Gravitation, and when these rules are capable of mathematical expression and of mathematical proof, they are, so far as they go, in the nature of pure truth. Mr. Lewes, in his very curious and interesting work on the'" Philosophy of Aristotle," has maintained that the knowledge of Measure -or what he calls the "verifiable element" in our knowledge-is the element which determines whether any theory belongs to Science, strictly so called, or to Metaphysics; and that any theory may be transferred from Metaphysics to Science, or from Science to Metaphysics, simply by the addition or withdrawal of its "verifiable element." In illustration of this, he says that if we withdraw, from the Law of Universal Attraction, the formula, "inversely as the square of the distance, and directly as the mass," it becomes pure Metaphysics. If this means that, apart from ascertained numerical relations, our conception of Law, or our knowledge of natural phenomena, loses;all reality and distinctness, I do not agree in the position. The idea of natural Forces is quite separate from any ascertained measure of their energy. The knowledge, for example, that all the particles of matter exert an attractive force upon each other, is, so far as it goes, true physical LAW; —ITS DEFINITIONS. 71 knowledge, even though we did not know the further truth, that this force acts according to the numerical rule ascertained by Newton. To banish from physical Science, properly so called, and to relegate to Metaphysics, all knowledge which cannot be reduced to numerical expression, is a dangerous abuse of language. Force, ascertained according to some measure of its operation —this is indeed one of the definitions, but only one, of a scientific Law. The discovery of laws in this sense is the great quest of Science, and the finlding of them is one of her great rewards. Such laws yield to the human mind a peculiar delight, from tile satisfaction they afford to those special faculties whose function it is to recognise the beauty of numerical relations. This satisfaction is so great, and in its own measure is so complete, that the mind reposes on an ascertained law of this bind as on an ultimate truth. And ultimate it is as regards the particular faculties which are.concerned in this kind of search. When we have observed our facts, and when we have summed up our figures, when we have recognised the constant numbers,-then our eyes, our ears, and our calculating faculties have done their work. iBut other faculties are called into simultaneous operation, and these have other work to do. For let it be observed that laws, in the 72 THE REIGN OF I.AW. first three senses we have now examined, cannot be said to explain anything except the Order of subordinate phenomena. They set forth that order as due to Force. They do nothing more. Least of all do laws, in any of these three senses, explain themselves. They suggest a thousand questions much more curious than the questions which they solve. The very beauty and simplicity of some laws is their deepest mystery. What can their source be? How is their uniformity maintained? Every law implies a Force, and all that we ever know is some numerical rule or measure accord. ing to which some unknown Forces operate. But whence come those measures-those exact relations to number, which never vary? Or, if there are variations, how comes it that these are always found to follow some other rules as exact and as invariable as the first? And as there can be no better example of what Law is, so also there can be no better example of what it is not-than the Law of Gravitation. The discovery of it was probably the highest exercise of pure intellect through which the human mind has found its way. It is the most universal physical law which is known to us, for it prevails, apparently, through all Space. Yet of the Force of Gravitation all we know is, that it is a force of attraction operating between all the particles of matter in the exact measure which was ascertained by LAW;-ITS DEFINITIONS. 73 Newton, —that is_-" directly as the mass, and inversely as the square of the distance." This is the Law. But it affords no sort of explanation of itself. What is the cause of this Force —what is its source-what are the media of its operation-how is the exact uniformity of its proportions maintained?-these are questions which it is impossible not to ask, but which it is quite as impossible to answer. Sir John Herschel, in speaking of this Force, has indicated in a passing sentence a few questions out of the many which arise:-" No matter," he says, "from what ultimate causes the power called gravitation originates —be it a virtue lodged in the sun as its receptacle, or be it pressure from without, or the resultant of many pressures, or solicitations of unknown kinds, magnetic or electric, ethers or impulses," I &c. &c. HLow little we have ascertained in this Law, after all! Yet there is an immense and an instinctive pleasure in the contemplation of it. To analyse this pleasure is as difficult as to analyse the pleasure which the eye takes in beauty of form, or the pleasure which the ear takes in the harmonies of sound. And this pleasure is inexhaustible, for these laws of number and proportion J)ervade all Nature, and the intellectual organs which hlave been fitted to the knowledge of them have eyes A Herschel's " Outlines of Astronomy, " fifth edition, po 323. 74 TXIE REIGN OF LAW. which are never satisfied with seeing, and ears which are never full of hearing. The agitation which overpowered Sir Isaac Newton as the Law of Gravitation was rising to his view in the light of rigorous demonstration, was the homage rendered by the great faculties of his nature to a harmony which was as new as it was immense and wonderful. The same pleasure in its own degree is felt by every man of science who, in any branch of physical inquiry, traces and detects any lesser law. And it is perfectly true that such laws are being detected everywhere. Forces which are in their essence and their source utterly mysterious, are always being found to operate under rules which have strict reference to measures of number,-to relations of Space and Time. The Forces which determine chemical combination all work under rules as sharp and definite as the Force of Gravitation. So do the Forces which operate in Light, and Heat, and Sound. So do those which exert their energies in Magnetism and Electricity. All the operatibnS of Nature-the smallest and the greatest-are performed under similar measures and restraints. Not even a drop of water can be formed except under rules which determine its weight, its volume, and its sla.pe, with exact re-ference to the density of the fluidl, o the structure of the surface on which it may be formed, and to lh1e pressure of the surrounding atmosphci'e. Then that LAW;-ITS DEFINITIONS. 75 pressure is itself exercised under rigorous rules again. Not one of the countless varieties of form which prevail in clouds, and which give to the face of heaven such infinite expression, not one of them but is ruled by Law,-woven, or braided, or torn, or scattered, or gathered up again and folded,-by Forces which are free only "within the bounds of Law." And equally in those subjects of inquiry in which rules of number and of proportion are not applicable, rules are discernible which belong to another class, but which are as certain and as prevailing. All events, however casual or disconnected they may at first appear to be, are found in the course of time to arrange themselves in some certain Order, the index and exponent of Forces, of which we know nothing except their existence as evidenced in these effects. It is indeed wonderful to find that in such a matter, for example, as the development of our Human Speech, the unconscious changes which arise from time to time among the rudest utterances of the rudest tribes and races of Mankind, are all found to follow rules of progress as regular as those which preside over any of the material growths of Nature. Yet so it is; and it is upon this fact alone that the science of Language rests-a science in which all the facts are not yet observed, and many of those which have been observed are not yet reduced to order; but 76 THE REIGN OF LAW. in which enough has been ascertained to show thal languages grow, and change from generation to gene, ration, according to rules of which the men who speak them are wholly unconscious. It is the same with all other things. And as it is now, so apparently has it been in all past time of which we have any record. Even the work of Creation has been and is being carried on under rules of adherence to Typical Forms, and under limits of variation from them, which can be dimly seen and traced, although they cannot be defined or understood. The universal prevalence of laws of this kind cannot therefore be denied. The discovery of them is one of the first results of all physical inquiry. In this sense it is true that we, and the world around us, are under the Reign of Law. It is true, but. only a bit and fragment of the truth. For there is another fact quite as prominent as the universal presence and prevalence of laws-and that is, the number of them which are concerned in each single operation in Nature. No one Law-that is to say, no one Force —determines anything that we see happening or done around us. It is always the result of different and opposing Forces nicely balanced against each other. The least disturbance of the proportion in which any one of them is allowed to tell, produces a total change in the effect. The mlore we know of Nature, the inore LAW;-ITS DEFINITIONS. 77 intricate do such combinations appear to be. They can be traced very near to the fountains of Life itself, even close up to the confines of the last secret of all-how the Will acts upon its organs in the Body. Recent investigations in Physiology seem to favour the hypothesis that our muscles are the seat of two opposing Forces, each so adjusted as to counteract the other; and that this antagonism is itself so arranged as to enable us by acting on one of these Forces, to regulate the action of the other. One Force —an elastic or contractile Force-is supposed to be inherent in the muscular fibre: another Force-that of Animal Electricity in statical condition-holds the contractile Force in check; and the relaxed, or rather the restful, condition of the muscle when not in use, is due to the balance so maintained. When, through the motor nerves the Will orders the muscles into action, that order is enforced by a discharge of the Electrical Force, and upon this discharge the contractile Force is set free to act, and does accordingly produce the contraction which is desired.l Such is, at least, one suggestion as to the means employed to place human action under the control of 1 This theory of muscular and nervous action is set forth with much ingenuity and force of illustration in "Lectures on Epilepsy,'" &c., by Challes Bland Radcliffe, M.D. 7 8 THE REIGN OF LAW. huimnan Wiil, in that material frame which is so wonderfully and fearfully made. And whether this hypotihesis be accurate or not, it is certain that some such adjustment of Force to Mechanism is involved in every bodily movement which is subject to the Will. Even in this high region, theiefore, we see that the existence of individual laws is not the end of our physical knowledge. What we always reach at last in the course of every physical inquiry, is the recognition, not of individual laws, but of some definite relation to each other, in which different laws are placed, so as to bring about a particular result. But this is, in other words, the principle of Adjustment, and adjustment has no meaning except as the instrument and the result of Purpose. Force so combined with Force as to produce certain definite and orderly results,-this is the ultimate fict of all discovery. And so we come upon another sense-the Fourth sense, in which Law is habitually used in Science, and this is perhaps the commonest and most important of all. It is used to designate not merely an observed Order of facts-not merely the bare abstract idea of Force-not merely individual Forces according to ascertained measures of operation-but a number of Forces in the condition of mutual adjustment, that is to say, as combined with each other, and fitted to each other for the LAW V —ITS DEFINITIONS. 79 attainment of special ends. The whole science of Animal Mechanics, for example, deals with Law in this sensewith natural Forces as related to Purpose and subservient to the discharge of Function. And this is the highest sense of all —Law in this sense being more perfectly intelligible to us than in any other; because, although we know nothing of the real nature of Force, even of that Force which is resident in ourselves, we do kno-w for what ends we exert it, and the principle that governs our devices for its use. Thllat principle is, Combination for the acconmplishment of Purpose. Accordingly it is, when natural phenomena can be reduced to Law, in this last sense, that we reach something which alone is really in the nature of an exp!anation~ For what do we mean by an explanation? It is an unfolding or a "making plain." But as the human mmind has many faculties., so each of these seeks a satisfaction of its own. That which is made plain to one faculty is not necessarily made plain to another. That which is a complete answer to the question What, or to the question How, is no answer at all to the question WThy. There are somre philosophers who tell us that this last is a question which had better never be asked, because it is one to which Nature gives no reply. If this be so, it is strange that Nature should have given us the faculties which impel us to ask this question-ay, 80 THE REIGN OF LAW. and to ask it more eagerly than any other. It is, indeed, true that there is a point beyond which we need not ask it, because the answer is inaccessible. But this is equally true of the questions What, and How. We cannot reach Final Causes any more than Final Purposes. For every cause which we can detect, there is another cause which lies behind; and for every purpose which we can see, there are other purposes which lie beyond. And so it is true that all things in Nature may either be regarded as means or as ends-for they are always both-only that Final Ends we can never see. For, as Bishop Butler truly says in his "Analogy,"l 1 We know what we ourselves aim at as final ends, and what courses we take merely as means conducing to these ends. But we are greatly ignorant how far things are considered by the Author of Nature under the simple notion of means and ends,-so as that it may be said this is merely an end, and that merely means, in His regard. And whether there be not some peculiar absurdity in our very manner of conception concerning this matter, somewhat contradictory, arising from an extremely imperfect view of things, it is impossible to say." This is indeed a wise caution, and one which has been much needed to check the,abuse of that method of reasoning which has been 1 Butler's "Analogy," chap. iv, LAW;- ITS DEFINITIONS. 8x called the doctrine of Final Causes. When Man makes an implement, he knows the purpose for which he makes it-he knows the function assigned to it in his own intention. But as in making it there are a thousand chips and fragments of material which he casts aside, so in its final use it often produces consequences and results which he did not contemplate or foresee. But in Nature all this is different. Nature has no chips or fragments which she does not put to use; and as on the way to her apparent ends there are no incidents which she did not foresee, so beyond those ends there are no ulterior results which do not open out into new firmaments of Design. Of, nothing, therefore, can we say W;ith even the probability of truth that we see its Final Cause; that is to say, its ultimate purpose. All that we can ever see are the facts of Adjustment and of Function, and these constitute not Final, but Immediate Purpose. But a purpose is not less a purpose, because other purposes may lie beyond it. And not only can we detect Purpose in natural phenomena, but, as we have already seen, it is very often the only thing about them which is intelligible to us. The How is very often incomprehensible, where the Why is apparent at a glance.- And be this observed, that when Purpose is perceived, it is a " making plain" to a higher faculty of the mind than the mere sense of Order. It is a making plain to Reason,. It is the reduc. -a 82 THE REIGN OF LAW. tion of phenomena to that Order of Thought which is the basis of all other Order in the works of Man, and which, he instinctively concludes, is the basis also of all Order in the works of Nature. And here it is important to observe, that although this general conclusion, like all other general conclusions, belongs to the category of mental inferences, and not to the category of physical facts, yet each particular instance of Purpose on which the general inference is founded, is not an inference merely, but a fact. The function of an organ, for example, is a matter of purely physical investigation. But the function of an organ is not merely that which it does, but it is that which some special construction enables it to do. It is, not merely its work, but it is the work assigned to it as an Apparatus, and as fitted to other organs having other functions related to its own. The nature of that Apparatus, as being in itself an adjustment for a particular purpose, is not an inference from the facts, but it is part of the facts themselves. The very idea of Function is inseparable from the idea of Purpose. The Function of an organ is its Purpose; and the relation of its parts, and of the whole to that Purpose, is as much and as definitely a scientific fact as the relation of any other phenomenon to Space, or Times or Number LAW; —ITS DEFINITIONS, 83 This distinction between Purpose as a general inference and Purpose as a particular fact, has not been sufficiently observed. The just condemnation pronounced by Bacon on the pursuit of Final Causes as distorting the true Method of Physical Investigation, has been applied without discrimination to two very different conceptions. Even Philosophers who believe in the Supremacy of Purpose in Nature have been willing to banish this conception from the Domain of Science, and to classify it as belonging altogether to Metaphysics or Theology. Thus in the very able Harveian Oration for i865 by Dr. H. W. Acland, he says, —'" Whether there be any Purpose, is the object of Theological and Metaphysical, but not of Physical in. quiry."' And again, "The evidence of intention is metaphysical, and depends on probabilities. It is not positive. It is inferential from mainy considerations."2 I venture to dissent from these conclusions. They involve, I think, a confounding of two separate questions. The nature and character of the intending Mind-this is indeed a question of Theology; but not tile existence of intention. Neither in any restrictive sense of the word can it be called Metaphysical. Even as a general doctrine, the doctrine of Contrivance and 2 P. 61. 2 P. 63, 84 THE REIGN OF LAW. Adjustment is not so metaphysical as the Doctrine of Homologies; and when we come to particular cases there can be no question whatever that the relation of a given Structure to its Purpose and Function comes more unequivocally under the class of physical facts than the relation of that same Structure to some corresponding part in another animal. It is less ideal, for example, —less theoretical less metaphysical-to assert of the little hooked claw which is attached to the (apparent) elbow of a Bat's wing, that it was placed there to enable the Bat to climb and crawl, than to affirm of that same claw that it is the "homologue" of the human thumb. Yet who can deny that this doctrine of Homologies has been established as a strictly scientific truth? There is a sense, of course, in which all Knowledge and all Science belongs to Metaphysics. Mere classification, which is the basis of all Science, what is it but the marshalling of physical facts in an Ideal Orders-an arrangement of them according to the relation which they bear to the laws of Thought? But this does not constitute as a branch of Metaphysics, the division of animals into Genera, and Families, and Orders. And what relation can physical facts ever have to Thought so directly cognisable or so susceptible of Demonstration as the relation of an animal organ to its purpose and function in the animal economy? LAW;-ITS DEFINITIONS. 85 Whether Purpose be the basis of all natural Order or not is a separate question. It is at least one of the facts of that Order. Combination for the accomplishment of Purpose therefore in particular cases, such as the relation between the structure of an Organ and its function, is not merely a safe conclusion of Philosophy, but an ascertained fact of Science.1 This question has acquired additional importance since the revival in our own day, and with new resources, of that old philosophy which assumes to banish from the domain of Knowledge no small part of the richest and surest acquisitions of Reason. That Philosophy must. be tested by a rigid analysis of thought and language. This is the weapon with which the assault is made, and it is by the same weapon better handled that it can alone be met. An arbitrary limitation of the word "'knowledge," to a particular kind of knowledge, can only be tolerated on condition that the arbitrary nature of the limitation be constantly kept in view. in like manner the word "verification" may be confined to a particular kind of proof applicable only to a particular class of truths. So again, in regard to "Metaphysics," it may be considered with reference to its subject-matter as denoting a particular branch of I See Note B. 86 THE REIGN OF LAW. inquiry-such as Psychology-or as a method of investigation which may be applied equally to all subjects which furnish the mind with the materials of thoughlt. But we must watch against the substitution of one of these meanings for another; and against the jtgglery by which men first use Metaphysical Analysis to pull down conceptions which they dislike, and then denounce Metaphysics as incapable of establishing any conclusions on which we can rely. The fact to which I have previously referred,' is a fact of immense significance, that one of the most able supporters of the Positive Philosophy in England relegates to Metaphysics the great scientific fact of Physical Attraction, when it is considered apart from its numerical relations. But if this be considered Metaphysics, then let it be remembered that many of the most certain truths we know belong to the same category. From a similar point of view, it might be argued, and it has actually been argued, that Number and all numerical relations are purely abstract conceptions of the mind,- having no other reality than as there conceived.2 The same reasoning may be applied to all our most fundamental conceptions-without which Science could not evcn begin her work. The existence of Force under any form, of which the existence of Mattex X P. 7o. ~ See Note C. LAW;-ITS DEFINITIONS. 87 is only a special case, may be regarded as a purely metaphysical conception. It is sutiely a comfort to find that, if all ideas of Plan and of Design in the Adjustments of Organic Life are to be condemned as Metaphysical, they stand at least in goodly company among the necessities of Thought. Mr. Lewes, indeed, himself confesses that " Science finds it indispensable to co-ordinate all the facts in a general concept, such as a Plan." 1 But he pronounces it one of the " Infirmities of Thought" to "realize the concept." But no accurate thinker ever " realized " such an idea as a'Plan "-that is to say, no one ever conceived it as existing by itself, separate from an intending Mind. Mr. Iewes complains that "Matter and Force are mysterious enough" without a "new mystery of Architectural Plan, shaping AMatter and directing Force." 2 But, substituting here "Mind" for Plan, it may surely be argued that, if Science finds it "indispensable'" to co-ordinate all the facts in some such general concept, this is of itself a proof that the element so introduced does not add to the mystery, but helps to remove it. Even if it be an "artifice of thought," it can only be resorted to as rendering the facts not less but more conceivable. And this it plainly does by appealing to I II History of Philosophy," Prologue, p. lxxxvi. 8 Ibid. 83 THE REIGN OF LAW. an agency having known power in the production of analogous phenomena. The instinctive wisdom which lies in this "infirmity" of the mind becomes more apparent when we turn to the efforts of an acute intellect to cast such infirmities away. The most abstract metaphysical conceptions are substituted for those which are denounced: the only difference being that, whilst the old conceptions are intelligible as connecting the Phenomena by a link of thought which the mind can feel and follow, the new conceptions are unintelligible because they try to describe facts without any reference to the ideas they involve. No new light-nothing but denser darkness-is cast on the phenomena of Organic Life by calling "Life the connexus of the organic activities." 1 Yet meaningless words are heaped on each other in the desperate effort to dispense with those conceptions which can alone render the order of Nature intelligible to us. Thus we are told again, that "The Organism is the synthesis of diverse parts, and Life is the synthesis of their properties;" 2-and again, that "Vitality is the abstract designation of certain special properties manifested by Matter under certain special conditions."3 Surely there is more light in the old reading: —" Finding," says Mr. Lewes, "in an organism History of Philosophy," p. 1xxx. s Ibid. p. lxxxiii - Ibid. p. lxxxiv. LAW j —ITS DEFINITIONS, 89 a certain adjustment of parts, which may be reduced to a plan, we are easily led to conceive that this plan was made before the parts, and that the adjustment was determined by the plan." No doubt! This is the easiest conception, and it is the easiest because it is most conformable to the laws of Thought; and that which is the most conformable to the laws of Thought is that which makes -the nearest approach to absolute Truth attainable by the Mind. The universal prevalence of this idea of Purpose in Nature is indicated by the irresistible tendency which we observe in the language of Science to personify the Forces, and the combinations of Force by which all natural phenomena are produced. It is a great injustice to scientific men-too often committed-to suspect them of unwillingness to accept the idea of a Personal Creator merely because they try to keep separate the language of Science from the language of Theology.1 But it is I A remarkable instance of this injustice has been lately brought to light. Professor Huxley, in an article in the Fortnighflly Review,. had used one of those vague phrases, so common with scientific men, about the "'unknown and the unknowable" being the goal of all scientific thought, which not unnaturally suggest the notion that all idea of a God is unattainable. A writer in the S5ectaZor accordingly dealt with Professor Huxley as avowing Atheism, and wag rebuked by the Professor in a letter published in the Spectator of Feb. Io, x866. Professor Huxley says: "I do not know that I care very much about popular odium, so that there is no great merit 90 THE REIGN OF LAW. curious to observe how this endeavour constantly breaks down-how impossible it is in describing physical phenomena to avoid the phraseology which identifies them with the phenomena of Mind, and is moulded on our own conscious Personality and Will. It is impossible to avoid this language simply because no other language conveys the impression which innumerable structures leave upon the mind. Take, for example, the word " contrivance." IHow could Science do w;vithout it? How could the great subject of Animal lMAechanics be dealt with scientifically without continual reference to Law as that by which, and through which, special organs are formed for the doing of special work? What is the very definition of a machine? Machines do not increase Force, they only adjust it. The very idea and essence of a machine is that it is a contrivance for the distribution of Force with a view in saying that if I really saw fit to deny the existence of a God, I should certainly do so, for the sake of my own intellectual freedom, and be the honest Atheist you are pleased to say I am. As it happenas, hEwever, I cannot take this position with honesty, inasmuch as it is, and always has been, a favourite tenet of mine, that Atheism is as absurd, logically speaking, as Polytheism." On the subject of miracles, in the same letter, Professor Huxley says, that " denying the possibility of miracles seems to me quite as unjustifiable as speculative Atheism." The question of miracles seems now to be admitted on all hands to be simply a question of evidence. LAW; —ITS DEFINITIONS. 91 to its bearing on special purposes. A man's arm is a machine in which the law of leverage is supplied to the vital force for the purposes of prehension. We-,.. shall see presently that a bird's wing is a machine in which the same law is applied, under the most comrn iplicated conditions, for the purpose of flight. Anatomy supplies an infinite number of similar examples. It is impossible to describe or explain the facts we meet with in this or in any other branch of Science without investing the "laws" of Nature with something of that Personality which they do actually reflect, or without conceiving of them as partaking of those attributes of.Mind which we everywhere recognise in their working and results. We may, again, take the Forces which determine the Planetary motions as the grandest and the simplest illustrations of this truth of Science. Gravitation, as already said, is a Force which prevails apparently through all Space. But it does not prevail alone. It is a Force whose function it is to balance other Forces, of which we know nothing, except this,-that these, again, are needed to balance the Force of Gravitation. Each Force, if left to itself, would be destructive of the Universe. Were it not for the Force of Gravitation, the centrifugal Forces which impel the Planets would fling them off into Space. Were it not for these centrifugal!Forces, the Force of Gravitation would dash them 92 THE REIGN OF LAW. against the Sun. The orbits, therefore, of the Planets, with all that depends upon them, are determined by the nice and perfect balance which is maintained between these two Forces; and the ultimate fact of astronomical science is not the Law of Gravitation, but the Adjustment between this law and others which are less known, so as to produce and maintain the existing Solar System. This is one example of the principle of Adjustment; but no one example, however grand the scale may be on which it is exhibited, can give any idea of the extent to which the principle of Adjustment is required, and is adopted in the works of Nature. The revolution of the seasons, for example-seed-time and harvest-depend on the Law of Gravitation in this sense, that if that law were disturbed, or if it were inconstant, they would be disturbed and inconstant also. But the seasons equally depend on a multitude of other laws,-laws of heat, laws of light, laws relating to fluids, and to solids, and to gases, and to magnetic attractions and repulsions, each one of which laws is invariable in itself, but each of which would produce utter confusion if it were allowed to operate alone, or if it were not balanced against others in the right proportion. It is very difficult to form any adequate idea of the vast number of laws which are concerned in producing the most ordinary operations of Nature. Looking only at the combinations with which Astronomy is concerned, the adjustments are almost LAW -ITS DEFINITIONS. 93 infinite. Each minutest circumstance in the position, or size, or shape of the Earth, the direction of its axis, the velocity of its motion and of its rotation, has its own definite effect, and the slightest change in any one of these relations would wholly alter the world we live in. And then it is to be remembered that the seasons, as they are now fitted to us, and as we are fitted to them, do not depend only on the facts or the laws which Astronomy reveals. They depend quite as much on other sets of facts, and other sets of laws, revealed by other sciences, -such, for example, as Chemistry, Electricity, and Geology. The motion of the Earth might be exactly what it is, every fact in respect to our Planetary position might remain unchanged, yet the seasons would return in vain if our own atmosphere were altered in any one of the elements of its composition, or if any one of the laws regulating the action were other than it is. Under a thinner air even the torrid zone might be wrapped in eternal snow. Under a denser air, and one with different refracting powers, the Earth and all that is therein might be burnt up. And so it is through the whole of Nature: laws everywhere-laws in themselves invariable, but so worked as to produce effects of inexhaustible variety by being pitched against each other, and made to hold each other in restraint. I have already referred to Chemistry as a science full of illustrations of Law in the First and simplest sense — 94 THE REIGN OF LAW. that is, of facts in observed orders of recurrence. But Chemistry is a science not less rich in illustration of Law in the Fourth sense-that is, of Forces in mutual adjustment. Indeed, in Chemistry, this system of adjustment among the different properties of matter is especially intricate and observable. Some of the laws which regulate Chemical Comibination were discovered in our own time, and are amongst the most wonderful and the most beautiful which have been revealed by any science. They are laws of great exactness, having invariable relations to number and proportion. Each elementary substance has its own combining proportions with other elements, so that, except in these proportions, no chemical union can take place at all. And when chemical union does take place, the compounds which result have different and even opposite powers, according to the different proportions employed. Then, the relations in which those inorganic compounds stand to the chemistry of Life, constitute another vast series in which the principle of adjustment has applications, infinite in number, and as infinite in beauty. How delicate these relations are, and how tremendous are the issues depending on their management, may be conceived from this single fact,-that the same elements combined in one proportion are sometimes a nutritious food or a grateful stimulant, soothing and sustaining the powers of life; whilst, combined in another proportion, they may be a LAW;-ITS DEFINITIONS. 95 deadly poison, paralysing the heart and carrying agony along every nerve and fibre of the animal frame. This is no mere theoretical possibility. It is actually the relation, for example, in which two well-known substances stand to each other-Tea and Strychnia. The active principles of these two substances, " Theine " and "Strychnine," are identical so far as their elements are concerned, and differ from each other only in the proportions in which they are combined. Such is the power of numbers in the Laboratory of Nature! What havoc in this world, so full of Life, would be made by blind chance gambling with such powers as these! What confusion, unless they were governed by laws whose certainty makes them capable of fine adjustment, and therefore subject to accurate control! IHow fine these adjustments are, and how absolute is that control, is indicated in another fact-and that is the few elements out of which all things are made. The number of substances deemed elementary has varied with the advance of Science; but as compared with the variety of their products, that number may be considered as infinitesinially small; whilst the progress of analysis, with glimpses of laws as yet unknown, renders it almost certain that this number will be found to be smaller still. Yet out Qf that small number of elementary substances, having fixed rules, too, limiting their combination, all the infinite varieties of organic and inorganic matter are built 96 THE REIGN OF LAW. up by means of nice adjustment. As all the faculties of a powerful mind can utter their voice in language whose elements are reducible to twenty-four letters, so all the forms of Nature, with all the ideas they express, are worked out from a few simple elements having a few simple properties. Simple! can we call them so? Yes, simple by comparison with the exceeding complication of the uses they are made to serve: simple also, in this sense, that they follow some simple rule of numbers. But in themselves these laws, these forces are incomprehensible. That which is most remarkable about them is their unchangeableness. The whole mind and imagination of scientific men is often so impressed with this character of material laws, that no room is left for the perception of other aspects of their nature and of their work. We hear of rigid and universal sequence-necessary-invariable;-. of unbroken chains of cause and effect, no link of which can, in the nature of things, be ever broken. And this idea grows upon the mind, until in some confused manner It is held as casting out the idea of Purpose in creation, and inconsistent with the element of Will. If it be so, the difficulty cannot be evaded by denying the uniformity, any more than the universality, of Law. It is perfectly true that every law is, in its own nature, invariable, producing always precisely and necessarily the same effects,-that is, provided it is worked under .AW;-ITS DEFINITIONS. 97 the same conditions. But then, if the conditions are not the same, the invariableness of effect gives place to capacities of change which are almost infinite. It is by altering the conditions under which anlly given law is brought to bear, and by bringing other laws to operate upon the same subject, that our own Wills exercise a large and increasing power over the material world. And be it observed —to this end the uniformity of laws is no impediment, but, on the contrary, it is an indispensable condition. Laws are in themselves-if not unchangeable —at least unchanging, and if they were not unchanging, they could not be used as the instruments of Will. If they were less rigorous they would be less certain, and the least uncertainty would render them incapable of any service. No adjustment, however nice, could secure its purpose if the implements employed were of uncertain temper. The notion therefore that the uniformity or invariableness of the Laws of Nature cannot be reconciled with their subordination to the exercise of Will, is a notion contrary to our own experience. It is a confusion of thought arising very much out of the ambiguity of language. For let it be observed that, of all the senses in which the word Law is used, there is only one in which it is true that laws are immutable or invariable; and that is the sense in which Law is used to designate an 98 THE REIGN OF LAW. individual Force. Gravitation, for example, is immutable in this respect-that (so far as we know) it never operates according to any other measure than "directly as the mass, and inversely as the square of the distance." But in all the other senses in which the word Law is used, laws are not immutable; but, on the contrary, they are the great instruments, the unceasing agencies, of change. When, therefore, scientific men speak, as they often do, of all phenomena being governed by invariable laws, they use language which is ambiguous, and in most cases they use it in a sense which covers an erroneous idea of the facts. There are no phenomena visible to Man of which it is true to say that they are governed by any invariable Force. That which does govern them is always some variable combinations of invariable forces. But this makes all the difference in reasoning on the relation of Will to Law,-this is the one essential distinction to be admitted and observed. There is no observed Order of facts which is not due to a combination of Forces; and there is no combination of Forces which is invariable —none which are not capable of change in infinite degrees. In these senses —and these are the common senses in which Law is used to express the phenomena of Nature-Law is not rigid, it is not immutable, it is not invariable, but it is, on the contrary, pliable, subtle, various. In the only sense in LAW; —ITS DEFINITIONS. 99 which laws are immutable, this immutability is the very characteristic which makes them subject to guidance tlirough endless cycles of design. We know this in our own case. It is the very certainty and invariableness of the laws of Nature which alone enables us to use them, and to yoke them to our service. Now, the laws of Nature appear to be employed in the system of Nature in a manner precisely analogous to that in which we ourselves employ them. The difficulties and obstructions which are presented by one law in the way of accomplishing a given purpose, are mnet and overcome exactly on the same principle on w-lhich they are met and overcome by Man-viz., by knowledge of other laws, and by resource in applying them,-that is, by ingenuity in mechanical contrivance. It cannot be too much insisted onI, that this is a conclusion of pure Science. The relation which an organic structure bears to its purpose in Nature can be recognised as certainly as the same relation between a machine and its purpose in human art. It is absurd to maintain, for example, that the purpose of the cellular arrangement of material in combining lightness with strength, is a purpose legitimately cognisable by Science in the Menai Bridge, but is not as legitimately cognisable when it is seen in Nature, actually serving the same use. The little Barnacles which crust the rocks at low tide, H 2 100 TIIE REIGN OF LAW. and which to live there at all must be able to resist the surf, have the building of their shells constructed strictly with reference to this necessity. It is a structure all hollowed and chambered on the plan which engineers have so lately discovered as an arrangement of material by which the power of resisting strain or pressure is multiplied in an extraordinary degree. That shell is as pure a bit of mechanics as the bridge, both being structures in which the same arrangement is adapted to the same end. Small, but a work divine; Frail, but of force to withstand, Year upon year, the shock Of cataract seas that snap The three-decker's oaken spine." 1 This is but one instance out of a number which no man can count. So far as we know, no Law —that is, no elementary Force-of Nature is liable to change. But every Law of Nature is liable to counteraction; and the rule is, that laws are habitually made to counteract each other in precisely the manner and degree which some definite result requires. Nor is it less remarkable that the converse of this is true: no Purpose is ever attained in Nature, except by the enlistment of Laws as the means and instruments ot'1 "Maud. LAW; —ITS DEFINITIONS. 101 attainment. When an extraordinary result is aimed at, it often happens that some common law is yoked to extraordinary conditions, and its action is intensified by some special machinery. For example, the Forces of Electricity are in action, probably, in all living Organisms, but certainly in the muscular and nervous system of the higher animals. In a very few (so far as yet known, in only a very few animals among the millions which exist, and these all belonging to the Class of Fishes), the electrical action has been so stored and concentrated as to render it serviceable as a weapon of offence. Creatures which grovel at the bottom of the sea, or in the slime of rivers, have been gifted with the astonishing faculty of wielding at their will the most subtle of all the powers of Nature. They have the faculty of" shooting out lightning " against their enemies or their prey. But this gift has not been given without an exact fulfilment of all the laws which govern Electricity, and which especially govern its concentration and destructive force. The Electric Ray, or Torpedo, has been provided with a Battery closely resembling, but greatly exceeding in the beauty and compactness of its structure, the Batteries whereby MI.an has now learned to make the laws of Electricity subservient to his will. There are no less than 94o hexagonal columns in this Battery like those of a bees' comb, and each of these is 102 THE REIGN OF LANV. subdivided by a series of horizontal plates, which appear to be analogous to the plates of the Voltaic Pile. The whole is supplied with an enormous amount of nervous matter, four great branches of which are as large as the animal's spinal cord, and these spread out in a multitude of thread-like filaments round the prismatic columns, and finally pass into all the cells.' This, again, seems to suggest an analogy with the arrangement by which an electric current, passing through a coil and round a magnet, is used to intensify the magnetic force. A corn plete knowledge of all the mysteries which have been gradually unfolded from the days of Galvani to those of Faraday, and of many others which are still inscrutable to us, is exhibited in this structure. The laws which are appealed to in the accomplishment of this purpose are many and very complicated; because the conditions to be satisfied refer not merely to the generation of Electric force in the animal to which it is given, but to its effect on the nervous system of the animals against which it is to be employed, and to the conducting medium in which both are moving. When we contemplate such a structure as this, the idea is borne in with force upon the mind, that the need of conforming to definite conditions seems as absolute a I Owen's'Lectures on Comp. Anat." vol. ii. (Fished). LAW;-ITS DEFINITIONS. I03 necessity in making an Electric Fish as in malking an Electric Telegraph. But the fact of these conditions existing, and requiring to be satisfied,-or, in other words, the fact of so many natural laws demanding a first obedience,-is not the ultimate fact, it is not even the main fact, which Science apprehends in such phenomena as these. On the contrary, that which is most observable and most certain, is the manner in which these conditions are met, complied with, and, by being complied with, are overcome. But this is, in other words, the subordination of many laws to a difficult and curious Purpose,-a subordination which is effected through the instrumentality of a purely mechanical contrivan.ce. It is no objection to this universal truth, that the machines thus employed in Nature are themselves constructed through the agency of Law. They grow-or, in modern phraseology, they are developed. But this makes no difference in the case-or, rather, it only carries us farther back to other and yet other illustrations of the same truth. This is precisely one of those cases already referred to, in which Causes are unknown, whilst Purposes are clear and certain. The Battery of an Electric Fish is both a means and an end. As respects the electric laws which it puts in motion-that is, as respects the Force which it concentrates-it must be regarded I04. THE REIGN OF LAW. as a means. As respects the organic laws by which it is itself developed, it is an end. What we do know in this case is why the apparatus was made; that is to say, what we do know is the Purpose. What we do not know, and have no idea of, is hzow it was made; that is to say, what we do not know is the Law, the Force or Forces, which have been used as the instrument of that Purpose. When Man makes a voltaic Battery, he selects materials which have properties and relations with each other previously ascertained- metals worked out of natural ores, acids distilled out of other natural substances; and he puts these together in such fashion as he knows will generate the mysterious Force which he desires to evoke and to employ. But how can such a machine be made out of the tissues of a fish? Well may Mr. Darwin say,' It is impossible to conceive by what steps these wondrous organs have been produced."l We see the Purpose. —that a special apparatus should be prepared, and we see that it is effected by the production of the machine required; but we have not the remotest notion of the means employed. Yet we can see so much as this, that here again other laws, belonging altogether to another department of Naturelaws of organic growth-are made subservient to a very definite and very peculiar Purpose. The paramount facts a 1" Origin of Species," p. x92, Ist edition. LAW; -ITS DEFINITIONS. IO5 disclosed by Science, however, in this case, are these:first, the adaptation of the animal tissues to form a battery; and, secondly, the Purpose or function of the apparatus, when made, to discharge electric shocks. There is indeed one objection to this method of conception, which would be a fatal objection if it could be consistently maintained. But all the strength of this objection lies in the obscure terrors which a very long word is sometimes capable of inspiring. This word is " Anthropomorphislm." Purpose and Design, it is said, is a human conception. Unquestionably it is, and so is all knowledge in every form. We can never stand outside ourselves. We can never get behind or above our own methods of conception. The human mind can know nothing, and can think of nothing except in terms of its own capacities of thought. But if this be fatal to our knowledge of any of the meanings in creation, it must be equally fatal to our having any knowledge of the very existence of a Creator. Once grant it to be true, " that if we are to apply our human standard to the Creator in one direction, we must apply it in all,"'-then it will follow that we cannot conceive any Creator unless it be one as weak, and as corrupt, and as ignorant as ourselves. If this be not bad logic, as on the face of it it clearly is, then it is not "Theology" alone which goes by the board. The purest and 1 Mr. G. H. Lewes, Fortnightlz y Review, July I867, p. 109. io6 THE RE, IGN OF LAW. most naked Theism is equally destroyed. If it can be said with truth that "'the Universal Mind is essentially other'than the Human Mind," so that no recognisable relations can exist between them, then that Universal Mind is to us as if it were not. But those who take objection to Anthropomorphism, are not generally prepared to follow it to this extreme conclusion. Mr. Lewes speaks of the sceptical philosophy he supports.as "rejecting Atheism "-of Atheism being " an error which it has not maintained," —of Atheism being not only rash, but "contradictory."2 But every conception of a " Mind," even though it be described as " Universal," must be in some degree Anthropomorphic. Our minds can think of another mind only as having some powers and properties which in kind are common with our own. Nor is this objection avoided by any of the other methods of conception which are devised to eliminate from the Order of Nature one of the most patent of its facts. The idea of natural forces working "by themselvres " is pre-eminently Anthropomorphic. This is undoubtedly the way in which they seem to us to work when we employ them. The idea of those forces having been so co-ordinated at the first as to produce " necessarily" and "by themselves" all the phenomena of Naturethis is an idea essentially formed on those higher efforts,1 Mr. G. H. Lewes, Fortnigotl/y Review, July i867, p. Io9. 2 Ibid. p. 107. LAW;-ITS DEFINITIONS. 107 of human ingenuity in virtue of which "'self-acting" machines are made. It is quite true, no doubt, that this is one aspect in which the adjustments and contrivances in Nature present themselves to us. But it does not render this idea more Anthropomorphic, but rather less when we add to it other conceptions —such as the idea of a Mind which is the source of all power, and -a Will which is present in all effects. There may be other difficulties in the way of this conception, but not the difficulty of Anthropomorphism. From neither of these conceptions, however, can we eliminate the idea of Purpose and Design. It is very difficult to divest ourselves of the notion, that whatever happens by way of natural consequence is thereby removed, at least by one degree, from being the expression of WVill and the effect of Purpose. Wre forget that all our own works, not less than the works of Nature, are works done through the means and instrumentality of Law. All that we can effect is brought about by way of natural consequence. All our machines are simply contrivances for bringing natural Forces ifito operation; and these machines themselves we are able to construct only out of the materials and by application of the laws of Nature. The Steam-engine works by way of natural consequence; so does Mr. Babbage's Calculating Machine; so does the Electric Telegraph; 108 THE REIGN OF LAW. so does the Solar System. It is true, indeed, that in all human machinery we know by the evidence of sight the ultim'ate agency to which the machinery is due, whereas in the machinery of Nature the ultimate agency is concealed from sight. But it is the very business and work of Science to rise from the Visible to the Invisible-from what we observe by Sense to what we know by Reason. And this brings us to the Fifth -meaning in which the word Law is habitually used in Science,-a meaning which is indeed well deserving of attention. In this sense, Law is used to designate, not any observed Order of facts,-not any Force to which such Order may be due,-neither yet any combination of Force adjusted to the discharge of function, but-some purely Abstract Idea, which carries up to a higher point our conception of what the phenomena are and of what they do. There may be no phenomena actually corresponding to such Idea, and yet a clear conception of it may be essential to a right understanding of all the phenomena around us. A good example of Law in this sense is to be found ill the law which, in the Science of Mechanics, is called the First Law of Motion. The law is, that all Motion is in itself (that is to say, except as affected by extraneous Forces) uniform in velocity, and rectilinear in direction. Thus according to this law a body moving, and not LAW;-ITS DEFINITIONS. IO9 subject to any extraneous Force, would go on moving for ever at the same rate of velocity, and in an exactly straight line. Now, there is no such motion as this existing on the earth or in the heavens. It is an Abstract Idea of Motion which no man has ever, or can ever, see exemplified. Yet a clear apprehension of this Abstract Idea was necessary to a right understanding and to the true explanation of all the motions which are actually seen. It was long before this idea was arrived at; and for want of it, the efforts of Science to explain the visible phenomena of Motion were always taking a wrong direction. There was a real difficulty in conceiving it, because not only is there no such motion in Nature, but there is no possibility by artificial means of producing it. It is impossible to release any moving body from the impulses of extraneous Force. The First Law of Motion is therefore a purely Abstract Idea. It represents a Rule which never operates as we conceive it, by itself, but is always complicated with other Rules which produce a corresponding complication in result. Like many other laws of the same class, it was discovered, not by looking outwards, but by looking inwards; not by observing, but by thinking. The human mind, in the exercise of its own faculties and powers, sometimes by careful reasoning, sometimes by the intuitions of genius I I THE REIGN OF LAW. unconscious of any process, is able, from time to time, to reach now one, now another, of those purely Intellectual Conceptions which are the basis of all that is intelligible to us in the Order of the Material WTorld. We look for an ideal order or simplicity in material Law; and the very possibility of exact Science depends upon the fact that such ideal order does actually prevail, and is related to the abstract conceptions of our own intellectual nature. It is in this way that many of the greatest discoveries of Science have been made. Especially have the great pioneers in new paths of discovery been led to the opening of those paths by that fine sense for abstract truths which is the noblest gift of genius. Copernicus, Kepler, and Galileo were all guided in their profound interpretations of visible phenomena by those intuitions which arise in minds finely organised, brought into close relations with the mind of Nature, and highly trained in the exercise of speculative thought. They guessed the truth before they proved it to be true; and those guesses had their origin in Abstract Ideas of the mind which turned out to be ideas really embodied in the Order of the Universe. So constantly has this recurred in the history of Science, that, as Dr. Whewell says, it is not to be considered as an exception, but as the rule.o 1 Whewell's "History of the Inductive Sciences," 2nd edition, vol i, p. 434. Speaking of Copernicus, Dr. Whewell says, in LAW;-ITS DEFINITIONS.! I I Here again it is very instructive to observe how "Law" in this last sense is dealt with by the Positive Philosophy. Scientific men are accustomed to reckon such Laws as the First Law of Motion among the surest possessions of pure Intellect, and the faculty by which they are conceived among the noblest proofs of its energy and power. Positivism, on the contrary, regards such laws as mere "artifices " of thought, and the Power by which they are conceived not as a Strength, but as an " Infirmity" of Mind.l I do not deny that the process by whichl these Abstractions are attained is a metaphysical process,-that is to say, they are purely mental conceptions. But the process which denies "reality" to these conceptions is also purely a metaphysical process, with this only difference, that it is bad metaphysics instead of good. The analysis which evolves these abstract Laws out of the phenomena of Nature is an anaiysis which truly coordinates the order of those phenomlena with an Order another place: "It is manifest that in this, as in other cases of discovery, a clear and steady possession of abstract Ideas, and an aptitude in comprehending real Facts under these general conceptions, must have been leading characters in the Discoverer's mind." -Vol. i. p. 389. 1 " Science is distinguished from common knowledge by its conscious employment of artifices which our infirmity renders indispen. sable." Again, " Abstractionis one of the necessary (from infirmity) artifices of research. "-Lewes' " Prologue," p. lxxxix. TT2 THE REIGN OF LAW. of Thought. The counter Analysis which pronounces them to be mere artifices of Thought, and "preliminary falsifications of fact," is an attempt to make Reason disbelieve herself, and immerses us at once in the worst kind of Metaphysics-that which has made the name almost opprobrious-even the old Scholastic subtleties of the Nominalistic and the Realistic controversy. And now having traced the various senses in which Law is used, we can form some estimate on the value of those conclusions of which some men are so boastful and of which other men are so much afraid. We can see how much and how little is really meant when it is said that Law can be traced in all things, and all things can be traced to Law. It is a- great mistake to suppose that, in establishing this conclusion, the progress of modern investigation is in a direction tending to Materialism. This may be and always has been the tendency of individual minds. There are men who would stare into the very Burning Bush without a thought that the ground on which they stand must be Holy Ground. It is not now of wood or stone that men make their Idols, but of their own abstract conceptions. Before these, borrowing for them the attributes of Personality, they bow down and worship. Nothing is more common than to find men who may be trusted thoroughly on the facts of their own Science, who cannot be trusted for a moment on the LAW;-ITS DEFINITIO-NS. I3 place which those facts assume in the general system of truth. Philosophy must include Science; but Science does not necessarily include Philosophy. There are, and there always have been, some special misconceptions connected with the prosecution of physical research. It is, however, on the surface of things, rather than below it, that the suggestions of Materialism lie thickest to the eye. They abound among the commonest facts which obtrude themselves on our attention in Nature and in human life. When the bursting of some small duct of blood upon the Brain is seen to destroy in a moment the Mind of Man, and to break down all the powers of his Intellect and his Will, we are in presence of a fact whose significance cannot be increased by a million of other facts analogous in kind. Yet on every fresh discovery of a few more such facts, there is generally some fresh outbreak of old delusions respecting the forms and the Laws of Matter as the supreme realities of the world. But when the new facts have been looked at a little longer, it is always seen that they take their place with others which have been long familiar, and the eternal problems which lie behind all natural phenomena are seen to be unaffected and unchanged. Like the most distant of the Fixed Stars, they have no parallax. The whole orbit of human knowledge shows in them no apparent change of place. No I 114 THE REIGN OF LAW. amnount of knowledge of the kind which alone physical Science can impart can do miore than widen the foundation of intelligent spiritual beliefs. We think that Astronomy and Geology have given to us in these latter days ideas wholly new in respect to Space and Time. Yet, after all, can we express those ideas, or can we indicate the questions they suggest, in any language which approaches in power to the majestic utterances of David and of Job? We know more than they knew of the magnitude of the Heavenly Bodies; but what more can we say than they said of the wonder of them,-of Orion, of Arcturus, and the Pleiades?1 WVe know that the earth moves, which they did not know; and we know that the rapid rotation of a globe on its own axis is a means of maintaining the steadiness of that axis in its course through Space. But what effect, except that of increasing its significance, has this knowledge upon the praise which David ascribes to that ultimate Agency which has made the round world so sure " that it cannot be moved? "2 And so of other departments of Science. Even the modern idea of Law, of the constancy and therefore the trustrworthiness of Natural Forces, has been known, not indeed scientifically but instinctively, to Man since first I Job ix. 9, 2 Ps. xciii. i. LAW;- ITS DEFINITIONS. II" he made a Tool, and used it as the instrument of Purpose. What has Science added to this idea, except that the same rule prevails as widely as the Universe, and is made subservient in a like manner to Knowledge and to Will? In the enthusiasm awakened by the discovery of some new facts, or of some new forces, and in the freshness with which they impress the idea of such agencies on our minds, we sometimes very naturally exaggerate the length of way along which they carry us towards the great ultimate objects of intellectual desire. We forget altogether that the knowledge they convey is in quality and in kind identical with knowledge already long in our possession, and places us in no new relation whatever to the vast background of the Eternal and the Unseen. Thus it is that the notions of Materialism are perpetually reviving, and are again being perpetually swept away —swept away partly before the Intuitions of the Mind, partly before the Conclusions of the Reason. For there are two great enemies to Materialism,-one rooted in the Affections, the other in the Intellect. One is -the power of THINGS HOPED FOR-a power which never dies: the other is the evidence of THINGS NOT SEEN-and this evidence abounds in all we see. In reinforcing this evidence, and in adding to it, Science is doing boundless work in the present day. It is not the extent of our knowledge, but rather the limits of it, that b II6 THE REIGN OF LAW. physical research teaches us to see and feel the most. Of course, in so far as its discoveries are really true, its influence must be for good. To doubt this were to doubt that all truth is true, and that all truth is God's. There are eddies in every stream-eddies where rubbish will collect, and circ'le for a time. But the ultimate bearing of scientific truth cannot be mistaken. Nothing is more remarkable in the present state of physical research than what may be called the transcendental character of its results. And what is transcendentalism but the tendency to trace up all things to the relation in which they stand to abstract Ideas? And what is this but to bring all physical phenomena nearer and nearer into relation with the phenomena of Mind? The old speculations of Philosophy which cut the ground from Materialism by showring how little we know of MIatter, are now being daily reinforced by the subtle analysis of the Physiologist, the Chemist, and the Electrician. Under that analysis Matter dissolves and disappears, surviving only as the phenomena of Force; which again is seen converging along all its lines 4o:;ome common centre-" sloping through darkness up to God."l Even the writers who have incurred most reasonable suspicion as to the drift of their teaching, give neverdherennysol's " In MIemoriam." LAW;-ITS DEFINITIONS. l17 less constant witness to what may be called the purely mental quality of the ultimate results of physical inquiry. It has been said with perfect truth that " the fundamental ideas of modern Science are as transcendental as any of the axioms in ancient philosophy.1 We have seen that one of the senses in which Law is habitually used is to designate abstract ideas and doctrines of this kind. So far from these doctrines and ideas having a tendency to Materialism, they serve rather to bring inside the strict domain of Science ideas which in the earlier stages of human knowledge lay wholly within the region of Faith or of Belief. For example, the writer of the Epistle to the Hebrews specially declares that it is by Faith that we understand "that the things which are seen were not made of the things which do appear." Yet this is now one of the most assured doctrines of Science,-that invisible Forces are behind and above all visible phenomnena, moulding them in forms of infinite variety, of all which forms the only real knowledge we possess lies in our perception of the Ideas they express-of their beauty, or of their fitness,-in short, of their being all the work of "Toil co-operant to an End." Every natural Force which we call a law is itself invisible-the idea of it in the mind arising by way of A Lewcs's s"t hilosophy of Aristotle," p. 66. T I THE REIGN OF LAW'. necessary inference out of an observed Order of facts. And very often, if not always, in our conception of these _Forces, we are investing them with the attributes of Intelligence and of Will at the very moment, perhaps, when we are stumbling over the difficulty of seeing in them the exponents of a Mind which is intelligent and of a Will which is Supreme. The deeper we go in Science, the more certain it becomes that all the realities of Nature are in the region of the Invisible, so that the saying is literally, and not merely figuratively true, that the things which are seen are temporal, and it is only the things which are not seen that are eternal. For example, we never see the phenomena of Life dissociated from Organisation. Yet the profoundest physi. ologists have come to the conclusion that Organisation is not the cause of Life, but, on the contrary, that Life is the cause of Organisation,-Life being something —a Force of some kind, by whatever name we may call it-which precedes Organisation, and fashions it, and builds it up. This was the conclusion come to by the great artatomist Hunter, and it is the conclusion endorsed in our own day by such men as Dr. Carpenter and Professor Huxley,-men neither of whom have exhibited in their philosophy any undue bias towards either theological or metaphysical explanations. One illustration referred to by these writers is derived from LAW;-ITS DEFINITIONS. I I9 the shells —the beautiful shells-of the animals called the'" Foraminifera." 1 No Forms in Nature are more exquisite. Yet they are the work and the abode of animals which are mere blobs of jelly-without parts, without organs-absolutely without visible structure of any kind. In this jelly, nevertheless, there works a "'vital Force" capable of building up an Organism of most complicated and perfect symmetry. But what is a vital Force? It is something which we cannot see, but of whose existence we are as certain as we are of its visible effects-nay, which our reason tells us-precedes and is superior to these.'We often speak of Material Forces as if we could identify any kind of Force with Matter. But this is only one of the many ambiguities of language. All that we mean by a Material Force is a force which acts upon Matter, and produces in Matter its own appropriate effects. We must go a step further therefore and ask ourselves, What is Force? What is our conception of it? What idea can we form, for example, of the real nature of that Force, the measure of whose operation has been so exactly ascertained-the Force of Gravitation? It is invisible-imponderable-all our words for it are but circumlocutions to express its phenomena or effects. 1 "The Elements of Comparative Anatomy," (Huxley,) pp. [o0 x I. 120 TIE REIGN OF LAVW. There are many kinds of force in Nature-which we distinguish after the same fashion-according to their effects or according to the forms of Matter inr which they become cognisable to us. But if we trace all our conceptions on the nature of Force to their fountain-head, we shall find that they are formed on our own consciousness of Living Effort-of that force which has its seat in: our own vitality, and especially on that kind' of it which can be called forth at the bidding of the Will. In saying this I do not mean to borrow from that false philosophy which pretends by the exercise of reason to get behind all the intuitive convictions on which reason rests. It is in this way that men have come to argue on what they call the " reality of an external world." Even if there were no process of reasoning capable of defending that reality, this would not lend a reasonable character to doubts regarding it. leason must start from some postulate-some primary truths which cannot be denied. But we need not assuime the reality of an external world to be one of these. Yet if it be not a first step, it is a second step hardly distinguishable from the first. Self-existence is of course the truth which may be regarded as the first of all, but in the very idea of Self the existence of that which is Not-Self is necessarily involved. In connecting, however, our conceptions of Force with the consciotusness LAW;-ITS DEFINITIONS, 12 I of Living Effort in. ourselves, we must guard against mistaking analogy for identity, and against confounding together two items of knowledge which are quite distinct. Correlative with the consciousness of Living Effort in ourselves, and inseparable from it, there is the consciousness of Force acting on us, as well as acting in us. And this argument applies equally whether Self be regarded as a perceiving Mind, or as a physical Organism through which Mind perceives. Thus the knowledge of an external world-that is to say, the knowledge of external Force-stands side by side with the knowledge of Self. Nothing can be known except as distinguished from other things; and all things which are distinguishable from each other, are, in a sense, and in the measure of that distinction, known. And so we know the existence both of internal and of external Force. But if we come to ask ourselves farther questions, as to the nature and seat of Material Force, we can only think of it in the terms of the Vital Force exerted by ourselves. If we can ever know anything of the nature of any Force, it ought to be of this one. And yet the fact is that we know nothing. If, then, we know nothing of that kind of Force which is so near to us, and with which our own Intelligence is in such close alliance, much less can we know the ultimate nature of Force in its other forms. 22 THE REIGN OF LAW, It is important to dwell on this, because both the aversion with which some men regard the idea of the Reign of Law, and the triumph with which some others hail it, are founded on a notion that, when we have traced any given phenomena to what are called Natural Forces, we have traced them farther than we really have. W~~e know nothing of the ultimate nature, or of the ultimate seat of Force. Science, in the modern doctrine of the Conservation of Energy, and the Convertibility of Forces, is already getting something like a firm hold of the idea that all kinds of Force are but forms or manifestations of some one Central Force issuing from some one Fountain-head of Power. Sir John Herschel has not hesitated to say, that'" it is but reasonable to regard the Force of Gravitation as the direct or indirect result of a Consciousness or a Will existing somewhere." 1 And even if we cannot certainly identify Force in all its forrs with the direct energies of One Omnipresent and all pervading Will, it is at least in the highest degree unphilosophical to assume the contrary —to speak or to think as if the Forces of Nature were either independent of, or even separate from, the Creator's Power. It follows, then, from these considerations, that whatever difficulty there may be in conceiving of a Will not exercised by a visible Person, it is a difficulty which " 6 Outlines (of AstlronIloy," 5th e(l;tion, p. 291. LAW;-ITS DEFINITIONS. 123 cannot be evaded by arresting our conceptions at the point at which they have arrived in forming the idea of Laws or Forces. That idea is itself made up out of elements derived from our own consciousness of Personality. This fact is seen by men who do not see the interpretation of it. They denounce as a superstition the idea of any Personal Will separable from the Forces which work in Nature. They say that this idea is a mere projection of our own Personality into the world beyond-the shadow of our own Form cast upon the ground on which we look. And indeed this, in a sense, is true. It is perfectly true that the Mind does recognise in Nature a reflection of itself. But if this be a deception, it is a deception which is not avoided by transferring the' idea of Personality to the abstract Idea of Force, or by investing combinations of Force with the attributes of Mind. We need not be jealous, then, when new domains are claimed as under the Reign of Law-an agency through which we see working everywhere some Purpose of the Everlasting Will. There are many things in Nature of which we do not see the reason; and many other things of which we cannot find ollt the cause; but there are none from which we exclude the idea of Purpose by success in discovering the cause. It has been said, with. perfect truth, by a living naturalist 124 THE REIGN OF LAW. who is of all others most opposed to what he calls Theological explanations in Science, that we may just as well speak of a watch as the abode of a'"watchforce," as speak of the organisation of an animal as the abode of a "vital Force." 1 The analogy is precise and accurate. The Forces by which a watch moves are natural Forces. It is the relation of interdependence in which those Forces are placed to each other, or, in other words, the adjustment of them to a particular Purpose, which constitutes the " watch-force;" and the seat of this Force which is in fact no one Force,'but a combination of many Forces —is in the Intelligence which conceived that combination, and in the WVill which gave it effect. The mechanisms dlevised by Man are in this respect only an image of the more perfect mechanism of Nature, in which the same prin ciple of Adjustment is always the highest result which Science can ascertain or recognise. There is this difference, indeed,-that in regard to our works we see that our knowledge of natural laws is very imperfect, andl our control over them is very feeble; whereas in the machinery of Nature there is evidence of complete knowledge and of absolute control. The universal rule is, that everything is brought about by way of Natural A Lewes's "Philosophy of Aristotle," p. 87. LAW; —ITS DEFINITIONS. 125 Consequence. But another rule is, that all natural consequences meet and fit into each other in endless circles of Harmony and of Purpose. And this can only be explained by the fact that what we call Natural Consequence is always the conjoint effect of an infinite number of elementary Forces, whose action and reaction are under direction of the Will which we see obeyed, and of the Purposes which we see actually attained. It is, indeed, the completeness of the analogy between our own works on a small scale, and the works of the Creator on an infinitely large scale, which is the greatest mystery of all. Man is under constraint to adopt the principle of Adjustment, because the Forces of Nature are external to and independent of his Will. They may be managed, but they cannot be disobeyed. It is impossible to suppose that they stand in the same relation to the Will of the Supreme; yet it seems as if He took the same method of dealing with them -never violating them, never breaking them, but always ruling them by that which we call Adjustment or Contrivance. Nothing gives us such an idea of the immutability of T,aws as this! nor does anything give us such an idea of their pliability to use. How imperious they are, yet how submissive! How they reign, yet how they serve I CHAPTER ILX CONTRIVANCE A NECESSITY ARISING OUT OF THE REIGN OF LAW-EXAMPLE IN THE MACHINERY OF FLIGHT. T HE necessity of Contrivance for the accomplishment of Purpose arises out of the irmmutability of Natural Forces. They must be conformed to, and obeyed. Therefore, where they do not serve our purpose directly, they can only be made to serve it by ingenuity and contrivance. This necessity, then, may be said to be the index and the measure of the power of Law. And so, on the other hand, the certainty with which Purpose can be accomplished by Contrivance, is the index and the measure of mental knowledge and resource. It is by wisdom and knowledge that the Forces of Nature-even those which may seem most adverseare yoked to service. This idea of the relation in which Law stands to Will, and in which Will stands to Law, is familiar to us in the works of Man: but it is less familiar to us as equally holding good in the works of Nature. We feel, sometimes, as if it were an unworthy notion of CONTRIVANCE A NECESSITY. I27 the Will which works in Nature, to suppose that it should never act except through the use of means. But our notions of unworthiness are themselves often the unworthiest of all. They must be ruled and disciplined by observation of that which is,-not founded on a p7iori conceptions of what ought to be. Nothing is more certain than that the whole Order of Nature is one vast system of Contrivance. And what is Contrivance but that kind of arrangement by which the unchangeable demands of Law are met and satisfied? It may be that all natural Forces are resolvable into some One Force; and indeed in the modern doctrine of the Correlation of Forces, an idea which is a near approach to this, has already entered the domain of Science. It may also be that this One Force, into which all others return again, is itself but a mode of action of the Divine Will. But we have no instrauments whereby to reach this last analysis. Whatever tho.e ultimate relation may be between mental and material Force, we can at least see clearly this, —that in Nature there is the most elaborate machinery to accomplish Purpose through the instrumentality of means. It seems as if all that is done in Nature as well as all that is done in art, were done by knowiZg how to do it. It is curious how the language of the great Seers of the Old Testament corresponds with this idea. They uniformly ascribe all the opergtions of Nature-the I 28 THE REIGN OF LAW. greatest and the smallest-to the working of Divine Power. But they never revolt-as so many do in these weaker days-fromn the idea of this Power working by wisdom and knowledge in the use of means; nor, in this point of view, do they ever separate between the work of first Creation, and the work which is going on daily in the existing world. Exactly the same language is applied to the rarest exertions of power, and to the gentlest and most constant of all natural operations. Thus the saying that " The Lord by wisdom hath founded the Earth; by understanding hath He established the Heavens,"-is coupled in the same breath with this other saying, " By His knowledge the depths are broken up, and the clouds drop down the dew."I Every instance of Contrivance which we can thoroughly follow and understand, has an intense interest —as casting light upon this method of the Divine government, and upon the analogy between the operations of our own minds and the operations of the Creator. Some instances will strike us more than others-and those will strike us most which stand in some near comparison with our own human efforts of ingenuity and contrivance. There is one such instance which I propose to consider in this chapter-the machinery by which a great purl Prov. iii. I9, 20. CONTRIVANCE A NECESSITY. 29 pose has been accomplished in Nature-a purpose which Man has never been able to accomplish in art, and that is the Navigation of the Air. No more beautiful example can be found, even in the wide and rich domain of Animal Mechanics-none in which we can trace more clearly, too, the mode and method in which laws the most rigorous and exact are used as the supple instruments of Purpose. 4 The way of an Eagle in the air" was one of the things of which Solomon said, that'he knew it not." No wonder that the Wise King reckoned it among the great mysteries of Nature! The Force of Gravitation, though its exact measure was not ascertained till the days of Newton, has been the most familiar of all Forces in all ages of Mankind. How, then, in violation of its known effects, could heavy bodies be supported upon the thin air-and be gifted with the power of sustaining and directing movements more easy, more rapid, and more certain than the movements of other animals upon the firm and solid earth? No animal motion in Nature is so striking or so beautiful as the " Scythe-like sweep of wings, that dare The headlong plunge through eddying gulfs of air." Nor will the wonder cease when, so far as the I Longfellow's "Wayside Tnn-Ser Federigo," K 130 THE REIGN OF LAW. mechanical problem is concerned, the mystery of flight is solved. If we wish to see how material laws can be bent to purpose, we shall study this problem. In the first place, it is remarkable that the Force which seems so adverse-the Force of Gravitation drawing down all bodies to the earth-is the very Force which is the principal one concerned in flight, and without which flight would be impossible. It is curious how completely this has been forgotten in almost all human attempts to navigate the air. Birds are not lighter than the air, but immensely heavier. If they were lighter than the air they might float, but they could not fly. This is the difference between a Bird and a Balloon. A Balloon rises because it is lighter than the air, and floats upon it. Consequently, it is incapable of being directed, because it possesses in itself no active Force enabling it to resist the currents of the air in which it is imrmersed, and because, if it had such a force, it would have no fulcrum, or resisting medium against which to exert it. It becomes, as it Were, part of the atmosphere, and must go with it where it goes. No Bird is ever for an instant of time lighter than the air in which it flies; but being, on the contrary, always greatly heavier, it keeps possession of a Force capable of supplying momentum, and therefore capable of overcoming any lesser Force, such as the ordinary resistance of the atmosphere, and CONTRIVANCE A NECESSITY. 131 even of heavy gales of wind. The Law of Gravitation, therefbre, is used in the flight of Birds as one of the most essential of the Forces which are available for the accomplishment of the end in view. The next law appealed to, and pressed into the service, is again a law which would seem an impediment in the way. This is the resisting force of the atmosphere in opposing any body moving through it. In this force an agent is sought and found for supplying the requisite balance to the Force of Gravity. But in order that the resisting force of air should be effectual for this purpose, it must be used under very peculiar conditions. The resisting force of fluids, and of airs or gases, is a force acting equally in all directions, unless special means are taken to give it predominant action in some special direction. If it is a force strong enough to prevent a body from falling, it is also a force strong enough to prevent it from advancing. In order, therefore, to solve the problem of flight, the resisting power of the air must be called into action as strongly as possible in the direction opposite to the Force of Gravity, and as little as possible in any other. Consequently a body capable of flight must present its maximum of surface to the resistance of the air in the perpendicular direction, and its minimum of surface in the horizontal direction. Now, both these conditions are satisfied (I) by the great K2 132 THE REIGN OF LAW. breadth or length of surface presented to the air perpendicularly in a Bird's expanded wings, and by (2) the narrow lines presented in its shape horizontally, when in the act of forward motion through the air. But some. thing more yet is required for flight. Great as the resisting force of air is, it is not strong enough to balance the Force of Gravity by its mere pressure on an expanded wing-unless that pressure is increased by an appeal to yet other laws —and other properties of its nature. Every sportsman must have seen cases in which a flying Bird has been so wounded as to produce a rigid expansion of the wings. This does not prevent the Bird from falling, although it breaks the fall, and makes it come more or less gently to the ground. Yet further, therefore, to accomplish flight, another law must be appealed to, and that is the immense elasticity of the air, and the reacting force it exerts against compression. To enable an animal heavier than the air to support itself against the Force of Gravity, it must be enabled to strike the air downwards with such force as to occasion a rebound upwards of corresponding power. The wing of a flying animal must, therefore, do some. thing more than barely balance Gravity. It must be able to strike the air with such violence as to call forth a reaction equally violent, and in the opposite direction. This is the function assigned to the powerful muscles by CONTRIVANCE A NECESSITY. 133 which the wings of Birds are flapped with such velocity and strength. We need not follow this part of the pro. blem further, because it does not differ in kind from the muscular action of other animals. The connexion, indeed, between the Wills of animals and the mechanism of their frame, is the last and highest problem of all in the mechanics of Nature; but it is merged and hid for ever in the one great mystery of Life. But so far as this difficulty is concerned, the action of an Eagle's wing is not more mysterious than the action of a Man's arm. There is a greater concentration of muscular power in the organism of Birds than in most other animal frames; because it is an essential part of the problem to be solved in flight, that the engine which works the wings should be very strong, very compact, of a special form, and that, though heavier than the air, it should not have an excessive weight. These conditions are all met in the power, in the outline, and in the bulk of the pectoral muscles which move the wings of Birds. Few persons have any idea of the force expended in the action of ordinary flight. The pulsations of the wing in most Birds are so rapid that they cannot be counted. Even the Heron seldom flaps its wings at a rate of less than from I20 to i50 strokes in a minute. This is counting only the downward strokes, preparatory to each one of which there must be an upward stroke also; so that there are 134 THE REIGN OF LAW. from 240 to 300 separate movements per minute. Yet the Heron is remarkable for its slow and heavy flight, and it is difficult to believe, until one has timed the pulsations with a watch, that they have a rapidity approaching to two in a second. But this difficulty is an index to the enormous comparative rapidity of the fasterflying Birds. Let any one try to count the pulsations of the wing in ordinary flight of a Pigeon, or of a Blackcock, or of a Partridge, or, still more, of any of the diving sea. fowl. He will find that though, in the case of most of these Birds, the quickness of sight enables him to see the strokes separate from each other, it is utterly impossible to count them; whilst in some Birds, especially in the Divers, as well as in the Pheasant and Partridge tribe, the velocity is so great that the eye cannot follow it at all. and the vibration of the wings leaves only a blurred impression on the eye. Oui subject here, however, is not so much the amount of vital force bestowed on Birds, as the mechanical laws which are appealed to in order to male that force effective in the accomplishment of flight. The elasticity of the air is the law which offers itself for the counteraction of gravity. But, in order to make it available for this purpose, there must be some great force of downward blow in order to evoke a corresponding rebound in the opposite, or upward direction. Now, what is the nature CONTRIVANCE A IN ECESSITY. 1x35 of the implement required for striking this downward blow? There are many conditions it must fulfil. First, it must be large enough in area to compress an adequate volume of air; next, it must be light enough in substance not to add an excess of weight to the already heavy body of the Bird; next, it must be strong enough in frame to withstand the pressure which its own action on the air creates. The first of these conditions is met by an exact adjustmlent of the size or area of the wing to the size and weight of the Bird which it is to lift. The second and the third conditions are both met by the provision of a peculiar substance, feathers, which are very light and very strong; whilst the only heavy parts of the framework, namely, the bones in which the feathers are inserted, are limited to a very small part of the area required. But there is another difficulty to be overcome-a difficulty opposed by natural laws, and which can only be met by another adjustment, if possible more ingenious and beautiful than the rest. It is obvious that if a Bird is to support itseWlf by the downward blow of its wings upon the air, it must at the end of each downward stroke lift the wing upwards again, so as to be ready for the next. But each upward stroke is in danger of neutralising the effect of the downward stroke. It must be made with equal velocity, and if it required equal force, i36 THE REIGN OF LAW. it must produce equal resistance, —an equal rebound from the elasticity of the air. If this difficulty were not evaded somehow, flight would be impossible. But it is evaded by two mechanical contrivances, which, as it were, triumph over the laws of aerial resistance by conforming to them. One of these contrivances is, that the upper surface of the wing is made convex, whilst the under surface is concave. The enormous difference which this makes in atmospheric resistance is familiarly known to us by the difference between the effect of the wind on an umbrella which is exposed to it on the under or the upper side. The air which is struck by a. concave or hollow surface is gathered up, and prevented from escaping; whereas the air struck by a convex or bulging surface escapes readily on all sides, and comparatively little pressure or resistance is produced. And so, from the convexity of the upper surface of a Bird's wing, the upward stroke may be made with comparatively trifling injury to the force gained in the downward blow. But this is only half of the provision made against a consequence which would be so fatal to the end in view. The other half consists in this-that the feathers of a Bird's wing are made to zuider/ap eacjh olier, so that in the downward stroke the pressure of the air closes them upwards against each other, and converts the CONTRIVANCE A NECESSITY. 137 whole series of them into one connected membrane, through which there is no escape; whilst in the upward stroke the same pressure has precisely the reverse effect -it opens the feathers, separates them from each other, and converts each pair of feathers into a self-acting valve, through which the air rushes at every point. Thus the same implement is changed in the fraction of a second from a close and continuous membrane which is impervious to the air, into a series of disconnected joints through which the air passes without the least resistance-the machine being so adjusted that when pressure is required the maximum of pressure is produced, and, when pressure is to be avoided, it is avoided in spite of rapid and violent action. This, however, exhausts but a small part of the means by which Law is made to do the work of Will in the machinery of flight. It might easily be that violent and rapid blows, struck downwards against the elastic air, might enable animals possessed of such power to lift themselves from the ground and nothing more. There is a common toy which lifts itself in this manner from the force exerted by the air in resisting, and reacting upon little vanes which are set spinning by the hand. But the toy mounts straight up, and is incapable of horizontal motion. So, there are many structures of wing which might enable animals to mount into the air, :138 THE REIGN OF LAW. but which would not enable them to advance or to direct their flight. How, then, is this essential purpose gained? Again we find an appeal made to natural laws, and advantage taken of their certainty and unchangeablenesso The power of forward motion is given to Birds, first by the direction in which the whole wing feathers are set, and next by the structure given to each feather in itself. The wing feathers are all set backwards,-that is, in the direction opposite to that in which the Bird moves; whilst each feather is at the same time so constructed as to be strong and rigid toward its base, and extremely flexible and elastic towards its end. On the other hand, the front of the wing, along the greater part of its length, is a stiff hard edge, wholly unelastic and unyielding to the air. The anterior and posterior webs of each feather are adjusted on the same principle. The consequence of this disposition of the parts as a whole, and of this construction of each of the parts, is, that the air which is.struck and compressed in the hollow of the wing, being unable to escape thlrough the wing, owing to the closing upwards of the feathers against each other, and being also unable to escape forwards owing to the rigidity of the bones and of the quills in that direction, finds its easiest escape backwards. In passing backwards it lifts by its force the elastic ends of the feathers; CONTRIVANCE A NECESSITY. 1139 and thus whilst effecting this escape, in obedience to the'law of action and reaction, it communicates, in its pas. sage along the whole line of both wings, a corresponding push forwards to the body of the Bird. By this elaborate mechanical contrivance the same volume of air is made to perform the double duty of yielding pressure enough to sustain the Bird's weight against the Force of Gravity, and also of communicating to it a forward impulse. The Bird, therefore, has nothing to do but to repeat with the requisite velocity and strength its perpendicular blows upon the air, and by virtue of the structure of its wings the same blow both sustains and propels it.' The truth of this explanation of the mechanical theory of flight may be tested in various ways. in the first place it is quite visible to the eye. In many birds flying straight to us, or straight from us, the effect of aerial resistance in bending upwards the ends of the quill feathers is very conspicuous. The flight of the common Rook affords an excellent example-where the Bird is seen foreshortened, In Eagles the same effect is very I The upward stroke has no sustaining power, but has considerable propelling power; because some air, failing to escape between the feathers, must always pass along the convex surface of the wing, and, escaping backwards, must exert upon the ends of the quills a similar reactive force to that which is exerted in the down. ward stroke. 140 THE REIGN OF LAW. marked-the wing tips forming a sharp upward curve. I have seen it equally obvious in that splendid Bird the Gannet, or Solan Goose; and when we recollect the great weight which those few quill feathers are thus seen sustaining, we begin to appreciate the degree in which lightness, strength, and imperviousness to the passage of air are combined in this wonderful implement of flight. But perhaps the simplest test of the action and reaction of the air and the wing feathers in producing forward motion is an actual experiment. If we take in the hand the stretched wing of a Heron, which has been dried in that position, and strike it quickly downwards in the air, we shall find that it is very difficult indeed to maintain the perpendicular direction of the stroke, requiring, in fact, murch force to do so; and that if we do not apply this force, the hand is carried irresistibly forwayd, from the impetus in that direction which the air communicates to the wing in its escape backwards from the blow. Another test is one of reasoning and observation. If the explanation now given be correct, it must follow that since no Bird can flap its wings in any other direction than the vertical —i.e. perpendicular to its own axis (which is ordinarily horizontal)-and as this motion has been shown to produce necessarily a forward motion, lw B2irdi can ever dy backwalaris, Accordingly no CONTRIVANCE A NECESSITY. 141 Bird ever does so —lo man ever saw a Bird, even for an instant, fly tail foremost. A Bird can, of course, allow itself to fall backwards by merely slowiezg the action of' its wings so as to allow its weight to overcome their sustaining power; and this motion may sometimes give the appearance of flying backwards,-as when a Swift drops backwards from the eaves of a house, or when a Humming Bird allows itself to drop in like manner from out of the large tubular petals of a flower. But this backward motion is due to the action of gravity, and not to the action of the Bird's wing. In short, it is falling downwards, not flying backwards. Nay, more, if the theory of flight here given be correct, it must equally follow that even standing still, which is the easiest of all things to other animals, must be very difficult, if not altogether impossible, to a Bird when flying. This also is true in fact. To stand still in the air is not indeed impossible to a flying Bird, for reasons to be presently explained, but it is one of the most difficult feats of winTgimansk/zif,-a feat which many Birds, not otherwise clumsy, can never perform at all, and which is performed only by special exertion, and generally for a very short time, by those Birds whose structure enables tlem to be adepts in their glorious art. It cannot be too often repeated-because miscon' 142 THE REIGN OF LAW. ception on this point has been the cardinal error in human attempts to navigate the air —that in all the beautiful evolutions of birds upon the wing, it is weight, and not buoyancy, which makes those evolutions possible. It supplies them, so to speak, with a store of Force which is constant, inexhaustible, inherent in the very substance of themselves, and entirely independent of any muscular exertion. All they have to do is to give direction to that internal Force, by acting on the external Force of aerial currents, through the contraction and expansion of the implements which have been given them for that purpose. Those who have watched the flight of Birds with any care, must have observed that when once they have attained a certain initial velocity and a certain elevation, by rapid and repeated strokes upon the air, they are then able to fly with comparatively little exertion, and very often to pursue their course for long distances without any flapping whatever of the wings. The contrast between the violent efforts required for the first acquisition of the initial velocity, and the perfect ease with which flight is performed after it has been acquired, is a contrast described by Virgil in lines of incomparable beauty: — "I Qualis spelunca subito commota columba, Cui domus et dulces latebroso in pumice nidi,.Fcrtur in arva volans, platusumi-que csterrita; peIlnis CONTRIVANCE A NECESSITY. 1 43 Dat tecto ingentem; mox, aere lapsa quieto, Radit iter liquiduln, celeres neque comemovet alas." &z. lib. v. 213-I 7 Still more remarkable, as showing the power and the value of weight in flight, is the fact that Birds are able to resume rapid and easy motion not only as the result of a previously-acquired momentum, but after " soaring" in an almost perfectly stationary position. Nothing, for example, is more common than to see Sea Gulls, and some large species of Hawks, "' soaring " one moment (that is, all the forces bearing on the Bird brought to an equilibrium, and all motion brought consequently to nearly a perfect standstill), and the next moment sailing onwards in rapid and apparently effortless progression. Now, how is this effect produced? If we only think of it, the question ought rather to be, How is it ever prevented? The soaring is a much more difficult thing to do than the going onwards. It cannot be done at all in a perfectly still atmosphere. It can only be done when there is a breeze of sufficient strength. Gravity is ceaselessly acting on the Bird to pull it downwards: and downwards it must go, unless there is a countervailing Force to keep it up. This force is the force of the breeze striking against the vanes of the wings. But in order to bring these two forces to nearly a perfect balance, and so to "soar," 1 44 TIlE REIGN OF LAW. the Bird must expand or contract its wings exactly to the right size, and hold them exactly at the right angle. The slightest alteration in either of these adjustments produces instantly an upsetting of the balance, and of course a resulting motion. The exact direction of that motion will depend on the degree in which the wing is contracted, and the degree in which its angle to the wind is changed. If the wing is very much contracted, and at the same time held off from the wind, that motion will be steeply downwards. Accordingly this is the action of a Hawk when it swoops upon its prey from a great height above it. I have seen a Merlin dash down from a great distance with its wings so closed as to seem almost wholly folded. The Gannet in diving for fish does not close its wings at all, but turning them and the whole axis of its body into the perpendicular, and thus allowing its great weight to act without any counteraction, dashes itself into the sea with foam.. But every variety of forward motion is attained by different degrees of contraction and exposure, according to the strength of the breeze with which the Bird has to deal. The limit of its velocity is the limit of its momentum, and the limit of its momentum is the limit of its weight. The light, ness of a Bird is therefore a limit to its velocity. The heavier a Bird is, the greater is its possible velocity CONTRIVANCE A NECESSITY. 145 of flight-because the greater is the store of Force —or to use the language of modern physics, the greater is the quantity of "potential energy" which, with proper implements to act upon aerial resistance, it can always convert into upward, or horizontal, or downward motion, according to its own management and desires. It will be at once seen from this view of the forces concerned in flight, that the common explanation of Birds being assisted by air-cells for the inhalation and storage of heated air, must not only be erroneous, but founded on wholly false conceptions of the fundamental mechanical principles on which flight depends. If a Bird could inhale enough warm air to make it buoyant, its power of flight would be effectually destroyed. It would become as light as a Balloon, and consequently as helpless. If, on the other hand, it were merely to inflate itself with a small quantity of hot air insufficient to produce buoyancy, but sufficient to increase its bulk, the only effect would be to expose it to increased resistance in cleaving the air. It is true, indeed, that the bones of Birds are made more hollow and lighter than the bones of Mammals, because Birds, though requirng weight, must not have too much of it. It is true, also, that the air must have access to these hollows, else they would be unable to resist atmospheric pressure. But it is no part whatever of the plan or intention of the structure L 546 THE REIGN OF LAW. of Birds, or of any part of that structure, to afford balloonspace for heated air with a view to buoyancy. And here, indeed, we open up a new branch of the same inquiry, showing, in new aspects, how the uni zersality and unchangeableness of all natural laws are essential to the use of them as the instrurnents of Will; and how by being played off against each other they are made to express every shade of thought, and the nicest change of purpose. The movement of all flying animals in the air is governed and determined by Forces of mluscuIar power, and of aerial resistance and elasticity, being brought to bear upon the Force of Gravity, whereby, according to the universal laws of motion, a direction is given to the animal which is the resultant, or compromise, between all the Forces so employed. Weight, as we have seen, is one of these Forces-absolutely essential to that result, and no flying animal can ever for a moment of time be buoyant, or lighter than the air in which it is designed to move. But it is obvious that, within certain limits, the proportion in which these different Forces are balanced against each other admits of immense variety. The limits of variation can easily be specified. Every flying animal must have muscular power great enough to work its own size of wing: that size of wing must be large enough to act upon a volume of air sufficient to lift the animal's whole weight: lastly, and consequently, the -_._- r. —-— — -17 - - T —-- --- ----— r_.:l..- -: —r-r_:I:1T : —___I —--— -,;-: -: _flI__-T-,,, -- -: —-- —--—: —-- __-__ —___--=~ —T--_ _-_I_T-I —--T —=- ___ __=5._=1 —---— _L — —r — — — —r- — s —-— = —-- r-==; —=s;=z-l —-===L=s-=_===, —~ —l=- —-— c= —c_Ilc-2 —= —-=-=-;= —-— rr==-==; —— = —c- ---- --— 1;.-_ ;2 —-— —--— —-- ~-rr —----— -; —--— = —- —--rIrI _.:__T-l —--=T7-I-I-- —- --— d Y — —-I= — — = —-------- ------- — —--— —-s - —1 —____=;-:_;- ----------- i L-,r_-_-=_L-~.==~-_ ITi 1 —1-=1= —--- _-I~1_I--3-; -— .:IT=I 3 —-- — —51-- —-1 —=-==__-=';-T1__ —sT —CC __ _-= —-_==_=_=_- —— ===_:F —---_ — ----— —-------------- S--I--- —- == —=-'==----~~-_-~ — —--— -= —r'-;c —- —--c r=-_-== —==_=_ —= —1 —-— 1-5-L-- _____:: -------------- ------— I_: - —------ --—;_~-=; —-1_-=I —-==T-I-=-_:r __c= _- -,__ —-— =---_--;:-,=, 1-_==== —===T__=;I==s=-,=_===,= -___--L-__L __C — —-;I_=-;_====-;_==rr_= — _c —--— L=r==_;;= ------— L —- ___-. —I;-; —- ---— =_= —L= —= —=---~__- — —--;-'I:_;; —: —-—: --- e _ —---- "_-==5_'-=''_ —— ==-: — = —---— _LC — -_ —C —j_===-===== —7-= —=--=rL -:;: L __ —— _-_ — -C -- --- -----— ^ = -- -s —— -; —-_ ---- —--- --—; ~- ------- -------------— ~ -—, L —-- -------— = =;==~~E;--= —--I-== —-- ;====-=;====b"-; —— — —— -=2 --— 5=-===- —- —= -- 55-..=_=---=-= —.== — — I- —- —— =rJ —— _._T_ —-— =-=;; —— -= — L —-L_ __ - LL-LZ —— L__==;=_= _--S-L —L;;-==-==5 =- _=C-SSL -- - —-c--I- -------— j —--- _= —-===5 —=_-== SI-Fi ---— L- —-== — —------— r —----— s;;-=;=l,= —— =-1= = —S-== —=-===-; - — —- —I —Z :-;===-= —;=== — --- —-= I —----- ---------— —-- -L-ii =--Z-= —i ------— —— -1= —— S-;_ —-== —=___L-,-,=.-L=;_?_S== r-_=; —--— —----— = —-- L c — —------— —--- 1 —---- -- --- I====-===-=__-i--;- - --- —`-=i;--=;--2==ls= _c-;= —=;-=; —=-== —-==~ - ---- — _==-===-i= —-==3 I_ —--— —- --- -— —------- -----------— ------- -- ------- -- -- -= —= —— =; —=== —---------- ,,_,---: —-— —-- ---— = —— —- —------, —---— -; —-- —. — —-'===---=--"-- —=-' — ---T;---- —;:;-f_i:r. JIlrj _____c —:: . --- ----— —--- CONTRIVANCE A NECESSITY. 147 weight must not be too great, or dispersed over too large a bulk. But within these limits there is room for great varieties of adjustments, having reference to corresponding varieties of purpose. To some Birds the air is almost their perpetual home-the only region in which they find their food-a region which they never leave, whether in storm or sunshine, except during the hours of darkness, and the yearly days which are devoted to their nests. Other Birds are mainly terrestrial, and never betake themselves to flight except to escape an enemy, or to follow the seasons and the sun. Between these extremes there is every possible variety of habit. And all these have corresponding varieties of structure. The Birds which seek their food in the air have long and powerful wings, and so nice an adjustment of their weight to that power and to that length, that the faculty of self-command in them is perfect, and their power of direction so accurate that they can pick up a flying gnat whilst they are passing through the air at the rate of more than a hundred miles an hour. Such especially are the powers of some species of the Swallow tribe, one of which, the common Swift, is a creature whose wonderful and unceasing evolutions seem part of the happiness of summer and of serene and lofty skies.1 1 For the form of the wing in this remarkable bird, see the beaud tiful drawing here engraved from the pencil of Mr. Wolf. i 2 148 THE REIGN OF LAW. There are other Birds in which the wing has to be adapted to the double purpose of swimming, or rather of diving, and of flight. In this case, a large area of wing must be dispensed with, because it would be incapable of being worked under water. Consequently in all diving Birds the wings are reduced to the smallest possible size which is consistent with retaining the power of flight at all; and in a few extreme Forms, the power of flight is sacrificed altogether, and the wing is reduced to the size, and adapted to the function, of a powerful fin. This is the condition of the Penguins. But in most genera of swimming Birds, both purposes are combined, and the wing is just so far reduced in size and stiffened in texture as to make it workable as a fin under water, whilst it is still just large enough to sustain the weight of the Bird in flight. And here again we have a wonderful example of the skill with which inexorable mechanical laws are subordinated to special purpose. It is a necessary consequence of the area of the wing being so reduced, in proportion to the size of the Bird, that great muscular power must be used in working it, otherwise the Force of Gravity could not be overcome at all. It is a farther consequence of this proportion of weight to working power, that there must be great momentum and therefore great velocity of flight. Accordingly this is the fact with all the oceanic diving Birds. They have vast CONTRIVANCE A NECESSITY. I49 distances to go, following shoals of fish, and moving from their summer to their winter haunts. They all fly with immense velocity, and the wing-strokes are extremely rapid. But there is one quality which their flight does not possess-because it is incompatible with their structure, and because it is not required by their habits —they have no facility in evolutions, no delicate power of steering; they cannot stop with ease, nor can they resume their onward motion in a moment. They do not want it: the trackless fields of ocean over which they roam are broad, and there are no obstructions in the way. They fly in straight lines, changing their direction only in long curves, and lighting in the sea almost with a tumble and a splash. Their rising again is a work of great effort, and generally they have to eke out the resisting power of their small wings, not only by the most violent exertion, but by rising against the wind, so as to collect its force as a help and addition to their own. And now, again, we may see all these conditions changed where there is a change in the purpose to be served. There is another large class of oceanic Birds whose feeding ground is not under water, but on the suiface of the sea. In this class all those powers of flight which would be useless to the Divers are abso. lutely required, and are given in the highest perfection, by I50 THE REIGN OF LAW. the enlistment of the same mechanical laws under different conditions. In the Gulls, the Terns, the Petrels, and in the Fulmars, with the Albatross as their typical Form, the mechanism of flight is carried through an ascending scale, to the highest degrees of power, both as respects endurance and facility of evolution. The mechanical laws which are appealed to in all these modifications of structure require adjustments of the finest kind; and some of them are so curious and so beautiful that it is well worth following them a little further in detail. There are two facts observable in all Birds of great and long-sustained powers of flight: —the first is, that they are always provided with wings which are rather long than broad, sometimes extremely narrow in proportion to their length; the second is, that the wings are always sharply pointed at the ends. Let us look at the mechanical laws which absolutely require this structure for the purpose of powerful flight, and to meet which it has accordingly been devised and provided. One law appealed to in making wings rather long than broad is simply the law of leverage. But this law has to be applied under conditions of difficulty and complexity, which are not apparent at first sight. The body to be lifted is the very body that must exert the lifting power. The Force of Gravity, which CONTRIVANCE A NECESSITY. I $I has to be resisted, may be said to be sitting side by side, occupying the same particles of matter, with the Vital Force which is to give it battle. Nay, more, the one is connected with the other in some mysterious manner which we cannot trace or understand. A dead Bird weighs as much as a living one. Nothing which our scales can measure is lost when the Vital Force is gone. It is The Great Imponderable. Nevertheless, vital forces of unusual power are always coupled with unusual mass and volume in the matter through which they work. And so it is that a powerful Bird must always also be comparatively a heavy Bird. And then it is to be remembered that the action of gravity is constant and untiring. The Vital Force, on the contrary, however intense it may be, is intermitting and capable of exhaustion. If, then, this Force is to be set against the Force of Gravity, it has much need of some implement through which it may exert itself with mechanical advantage as regards the particular pulrpose to be at-. tained. Such an implement is the lever-and a long wing is nothing but a long lever. The mechanical principle, or law, as is well known, is this, —that a very small amount of motion, or motion through a very small space, at the short end of a lever, produces a great amount of motion, or motion through a long space, at the opposite or longer end. This action requires indeed a very intense 15 t2 THE REIGN OF LAW. force to be applied at the shorter end, but it applies that force -~ith immense advantage for the purpose in viewbecause the motion which is transmitted to the end of a long wing is a motion acting at that point throughl a long space, and is therefore equivalent to a very heasvy weight lifted through a short space at the end which is attached to the body of the Bird. Now this is precisely what is required for the purpose of flight. The body of a Bird does not require to be much lifted by each stroke of the wing. It only requires to be sustained; and when more than this is needed —as when a Bird first rises irom the ground, or from the sea, or when it ascends rapidly in the air-greatly increased exertion-in many cases, very violent exertion-is required.1 And then it is to be remembered that long wings economise the vital force in another way. When a strong current of air strikes against the wings of a Bird, the same sustaining effect is produced as when the wing strikes 1 The Albatross, when rising from tne sea, is described (" Ibis," July I865) as " stretching out his neck, and with great exertion oI his wings, running along the top of the water for seventy or eighty yards, until at last haring got sufficient impetus, he tucks up his legs, and is once more fairly launched into the air." The contrast here described between the violent exertion required in first rising, and the perfect ease of flight after this first momientum has been acquired, is a striking illustration of the true mechanical princip!fs of flight. CONTRIVANCE A NECESSITY. 153 against tile air. Consequently Birds with very long wings have this great advantage, that with pre-acquired nlolentum, they call often for a long time fly wvithout flapping their wings at all. Under these circumstances, a Bird is sustained very much as a boy's kite is sustained in the air. The string which the boy holds, and by which he pulls the kite downwards with a certain force, perforllls for the kite the same ofifces which its own weight and balance and momentum perform for the Bird. The great long-winged oceanic Birds often appear to float rather than to fly. The stronger is the gale, their flight, though less rapid, is all the more easy —so easy indeed as to appear buoyant; because the blasts which striate against their wings are enough to sustain the bird with comparatively little exertion of its own, except that of holding the wing vanes stretched and exposed at proper angles to the wind. And whenever thle onward force previously acquired by flapping be-.comes at length exhlausted, and the ceaseless inexorable Force of Gravity is beginning to overcome it, the Bird again rises by a few easy and gentle half-strokes of the wing. Very often the same effect is produced by allowing tihe Force of Gravity to act, and when the downward Imoimentum has -brought the Bird close to the ground or to the sea, that force is again converted into an ascending impetus by a change in the angle at which I 54 TIE REIGN OF LAW. the wing is exposed to the wind. This is a constant action with all the oceanic Birds. Those who have seen the Albatross have described themselves as never tired of watching its glorious and triumphant motion:a'Tranquil its spirit seemed, and floated slow; Even in its very motion there was rest."l Rest-where there is nothing else at rest in the tremendous turmoil of its own stormy seas i Sometimes for a whole hour together this splendid Bird will sail or wheel round a ship in every possible variety of direction without requiring to give a single stroke to its pinions. Now, the Albatross has the extreme form of this kind of wing. Its wings are immensely long-about fourteen or fifteen feet from tip to tip-and almost as narrow in proportion as a riband.2 Our common Gannet is an excel1 Professor Wilson's Sonnet, " A Cloud," &c. 2 The mechanical principle involved in the sufficiency of very narrow wings has, I believe, been adequately explained in a very ingenious paper read before the A4ronzautical Society, by Mr. F. iH. Wenham, C.E. It is the same mechanical principle which accounts for the narrow blades of a Screw Propeller having a resisting force as great as would be exerted upon the whole area. of rotation by a solid Disc. In the case of a flat body, such as the wing of a bird, being propelled edgeways through the air, nearly the whole resisting and sustaining force is exerted upon the first few inchea of tile advancing surface Pr a ~~~~ e ~~3 K ~~~ 7- 1C;i ~~~ CONTRIVANCE A NECESSITY. 5 5 lent, though a more modified, example of the same kind of structure. On the other hand, Birds of short wings, though their flight is, sometimes very fast, are never able to sustain it very long. The muscular exertion they require is greater, because it does not work to the same advantage. Most of the Gallinaceous Birds (such as the common Fowl, Pheasants, Partridges, &c.) have wings of this kind; and some of them never fly except to escape an enemy, or to change their feeding-ground. The second fact observable in reference to Birds of easy and powerful flight-namely, that their wings are all sharply pointed at the end-will lead us still further into the niceties of adjustment which are so signally displayed in the machinery of flight. The feathers of a Bird's wing have a natural threefold division, according to the different wing-bones to which they are attached. The quills which form the end of the wing are called the Primariies; those which form the middle of the vane are called the Secondaries; and those which are next the body of the Bird are called the Tertiaries. The motion of a Bird's wing increases from its minimum at the shoulder-joint to its maximum at the tip. The primary quills which form the termination of the wing are those on which the chief burden of flight is cast. Each feather has less and less weight to bear, and less and less force to exert, in proportion as it lies nearer 156 TIHE REIGN OF LAW. the body of the Bird; and there is nothing more beautiful in the structure of a wing than the perfect gradation in strength and stiffness, as well as in modification of form, which marks the series from the first of the Primary quills to the last and feeblest of the Tertiaries.1 Now, the sharpness or roundness of a wing at the tip depends on the position which is given to the Ziongest Primary quill. If the first, or even the second, primary is the longest, and all that follow are considerably shorter, the wing is necessarily a pointed wing, because the tip of a single quill forms the end; but if the third or fourth Primary quills are the longest, and the next again on both sides are only a little shorter, the wing becomes a round-ended wing. Round-ended wings are also almost always openended-that is to say, the tips of the quills do not touch each other, but leave interspaces at the end of the wing, through which, of course, a good deal of air escapes. Since each single quill is formed on the same principle as the whole wing —thlt is, with the anterior margin stiff and the posterior margin yielding —this escape is not a I owe to the accurate pencil of Mr. J. Wolf the accompanying engraving of the wing of the Golden Plover, a Bird of powerful flight. In this wing the gradation of the feathers is very perfect. It will be observed that the first of the Secondaries, the eleventh feather from the tip of the wing, is marked by a slight variation in the forml of the margin. I''~~~er V$~Sr~ct~