l\SS.H:iS /ipwff Mil ^^HAJMjW NATIONAL ACADEMIES AND THE PROGRESS OF RESEARCH BY GEORGE ELLERY HALE u *. vV' ^ NATIONAL ACADEMIES AND THE PEOGRESS OF RESEAECH BY GEORGE ELLEKY HALE Foreign Secretary of the National Academy of Sciences Beprinted from Science, Vol. XXXV f 11. , No. 985, Pages 681-698, November U, 1913; Vol. XXXIX, No. 997, Pages 189-200, Februa/ry 6, 1914; Vol. XL., No. 1043, Pages 907-919, December 25, 1914; Vol. XLL, No. 1044, Pages 12-22, Januaru 1, 1915. By vnaBtm JUL m *yi8 K-S s ,W*5 PRESS OF THE NEW ERA PRINTING COMPANY LANCASTER, PA. I. THE WOEK OF EUROPEAN ACADEMIES The Academy of Plato, who bequeathed to his followers the walled garden and ap- pointments in the place named after the hero Hekademus, was at once a school of instruction and a society for the develop- ment of new knowledge. Here he discussed his philosophy with associates and students while it was still in the making, thus bring- ing them under the stimulating influence of fresh thought, developing and expanding from day to day. Writing of the Old Acad- emy, which included the schools of Plato and his immediate successors, Cicero re- marks : From their writings and systems all liberal learning, all history, all elegance of language, may be derived; and also, so great is the variety of arts of which they were masters, that no one can come properly armed for any business of importance and credit without being tolerably versed in their writings. ... It is from this Academy, as from a regular magazine of all the arts^ that mathema- 1 ticians, poets^ musicians, aye, and physicians too, have proceeded.! The Old Academy was thus the prede- cessor of our modern academies of science and of our universities as well. Its world- wide influence, while of course primarily due to the brilliant thinkers of the day, may certainly be ascribed in part to the fact that its instruction was given in an atmosphere charged with the stimulus of original thought and constantly broadening ideas. The great success of the German univer- sities, and the outflow from them of the spirit of research into every phase of Ger- man life and thought, is undoubtedly due in the largest measure to the application of this principle. Fortunately for the intel- lectual advancement of the United States, the recognition of its importance has al- ready permeated most of our advanced schools, and is rapidly gaining acceptance in the minds of their governing boards of trustees. Aristotle, called by Plato ''the mind of my school," came from a family of physi- cians, and thus inherited a taste for experi- 1 Cicero, ' '■ De Finibus, ' ' Book 5, Yonge 's trans. 2 mental knowledge. To him we owe the beginnings of exact science and the organi- zation of research on a large scale. Thanks to his influence with his pupil Alexander the Great, he was able to command the great sum of eight hundred talents for the purchase of books and for other expenses involved in the preparation of his treatise on zoology. More than this, a thousand men throughout Asia and Greece studied under his direction the life and habits of birds and beasts, fishes and insects.^ The territories conquered by Alexander were carefully surveyed, by measuring the position of terrestrial objects with respect to stars.^ Although Aristotle maintained the fixity of the earth, and supposed comets and the Milky Way to be in its higher atmosphere, 2 Wheeler, '' Alexander the Great,'' p. 37. The strict accuracy of these assertions, which were made by several classical authors, is questioned by Grote and also by Humboldt, who nevertheless concede, that Aristotle received from both Philip and Alexander the most liberal support in pro- curing zoological material from Grecian territories and in the collection of books. '' Cosmos," Sa- bine's trans., Vol. II., p. 158. 3 Bossut, ' ' Histoire des Mathematiques, ' ' Vol. 1, p. 116. 3 his reasoning in many astronomical prob- lems was sound, as when he concluded that the earth must be spherical because its shadow on the eclipsed moon is always curved.* Thus his studies of natural science foreshadowed the work of the present-day investigator and led to the most far-reach- ing results. After his time a gradual division of labor ultimately separated investigations in natu- ral science from the speculations of the philosophers. In Sicily, Egypt and the islands of the Mediterranean true scientific research, in the strictly modern sense, devel- oped with remarkable rapidity, while in the old Lyceum at Athens the philosophy of reasoning and dialectics, caring little for physical causes, was devoted exclusively to the soul. A deep-seated belief that the senses are deceptive, and the natural impatience of the Greeks, inclining them toward reasoning and speculation rather than the slow and laborious processes of observation and ex- periment, had first to be overcome.^ But in ^Ilid,, p. 117. 5 Weber, '^History of Philosophy,^' Thilly's trans., p. 133 et seq. 4 the third century B.C. the greatest geometer of antiquity, Archimedes, taught at Syra- cuse a system of astronomy closely resem- bling that of Copernicus, founded the science of mechanics in his treatise ^'De ^.quiponderantibus, " and devised some of the fundamental experimental methods of modern physics. At the same period Aris- tarchus of Samos made a first determination of the distance of the sun from the earth and held that *Hhe center of the universe was occupied by the sun, which was im- movable, like other stars, while the earth revolved around it."^ This view was also taught by Seleucus the Babylonian, but it was rejected by Ptolemy, the most cele- brated astronomer of his day. THE MUSEUM OF ALEXANDRIA Of all the ancient prototypes of the modern academy, the great Museum of Alexandria holds the first place. Founded by Ptolemy Soter, whose preference would have confined its work to the moral and political sciences, its scope soon expanded under the influence of Ptolemy Phila- 6 See Humboldt, *' Cosmos,^' Vol. II., p. 309, and notes, p. cix. 5 delphus and the pressure of circumstances, until it embraced the whole field of knowl- edgeJ Here almost all of the important results of Greek science were obtained in a period covering nine centuries. The museum established by Ptolemy was an extensive palace, housing the brilliant com- pany of scholars and investigators gathered together from all parts of Greece. As a state institution, endowed with special revenues, it was under the direction of the government, which appointed its head. This, in accordance with the traditions of the day, was a priest, whose ecclesiastical office, and even the name of the museum itself, gave a kind of religious character to the institution,^ though it subsequently be- came purely secular. Ptolemy Philadelphus collected strange animals from many lands, and sent Diony- sius on exploring expeditions to the most remote regions.® But while the investi- gators of the museum doubtless profited by these collections and explorations for their 7 Matter, **ffistoire de I'Eeole d 'Alexandrie, " 2d ed.. Vol. II., Introduction, p. v. 8 Op. dt., Vol. I., pp. 87 and 96. ^lUd., p. 158. 6 studies in natural history and geography, Matter finds no evidence that at this period the museum possessed either a distinct natural history collection or a zoological park/^ though the study of medicine was encouraged, and a great art collection was developed. The rising tide of science soon brought all the material requisites of research, sup- plementing the great library of 700,000 volumes by the instruments, laboratories and collections demanded by the astron- omer, the physicist and the student of biology. A botanical garden, a zoological menagerie, an anatomical laboratory and an astronomical observatory in the Square Porch, provided by Ptolemy Euergetes with an equinoctial and a solstitial armil- lary, stone quadrants, astrolabes and other instruments, illustrate the nature of the extensive equipment provided. The work of the Alexandrian school thus continued to grow, until it embraced all of natural and physical science, medicine, mathe- matics, astronomy and geography, history, philosophy, religion, morals and politics. It is significant that an institution which in loiMd., p. 159. 7 many respects would be regarded as a model to be striven for to-day, should have developed at so early a period in the history of civilization.^^ To the Alexandrian school we owe the "Geometry" of Euclid, and his treatises on ''Harmony," ''Optics" and "Catop- trics " ; the hydraulic screw and some of the mathematical and physical discoveries of Archimedes of Syracuse, who spent part of his time in Egypt; the mathematical, astronomical, geographical and historical investigations of Eratosthenes, who first endeavored to determine the circumference of the earth by measuring the difference of latitude and the distance between Alexan- dria and Syene, and wrote on such subjects as the geological submersion of lands, the elevation of ancient sea-beds, and the origin of the Dardanelles and the Straits of Gibraltar; the "Conic Sections" of Apol- lonius; the mathematical and astronomical researches of Hipparchus, whose discovery of the precession of the equinoxes was L^^j^Jl^ I -n Q based on observations made 4¥eHw4ndredr years previously by Timochares at Alexan- 11 Draper, *' Intellectual Development of Eu- rope,'' Vol. I., p. 188. 8 1 dria ; and the great ' ' Syntaxis ' ' of Ptolemy, translated as the "Almagest" by the Arabians, which stood as a commanding authority in Europe for nearly fifteen hun- dred years. Founded on the geocentric hypothesis, the "Almagest" is nevertheless replete with astronomical methods and observations of the widest range and signifi- cance, and includes Ptolemy's discovery of the lunar evection, a rough determination of the distance of the earth from the sun, a masterly discussion of the motions of the planets, and a catalogue of 1,022 stars. These remarkable advances, which include only a fraction of the enormous scientific product of the Alexandrian school, were supplemented by equally striking contribu- tions to literature and art. Philology, criti- cism and the history of literature became sciences, while the coming together of Budd- hists, Jews, Greeks and Egyptians, with the most diverse beliefs, led to the develop- ment of comparative theology. Of the literary works of the Alexandrian school, the Septuagint and the poems of Theocritus are perhaps the most widely known.^^ 12 Eeeent works on Greek science include those of Tannerjj Duhem, Lones and Heath. 9 The rising power of Rome, which finally- made of Alexandria a mere provincial town, was coincident with the decline of Greek intellectual life. In this paper only the more significant epochs in the develop- ment of academies can be mentioned, and we must pass over the work of the imme- diate successors of the Alexandrian school in Rome and Byzantium, and the achieve- ments of Arabian science in Africa, Spain and Persia. In 1453, by the fall of Con- stantinople, where Greek scholars had pre- served, in antiquated, and pedantic form, the literary and philosophical traditions of the Alexandrian age, Italy was once more raised to its old position of '* Magna Grsecia." Some years earlier the scholar and ambassador Pletho, aided by Cosimo de Medici, had established a Platonic acad- emy in Florence. Under this stimulus, and the influence of the Greek refugees, philos- ophy became popular, and Greek was widely studied. The voyages of Columbus, Da Gama and Magellan, and the astro- nomical achievements of Tycho Brahe, Copernicus, Kepler and Galileo reawak- ened the appreciation of scientific research and its possibilities. Leonardo da Vinci 10 continued the work of Archimedes and the Alexandrian school in optics, mechanics and other branches of physics, Vesalins established human anatomy on a firm foundation, and Harvey proved the theory of the circulation of the blood. It is not surprising that under such conditions acad- emies of literature and science should multiply in Europe. ITALIAN ACADEMIES Among the earliest Italian academies were the academy of history, philology and archeology, founded in Rome by Pomponio Leto in 1457; the Accademia di S. Luca, devoted to the fine arts, established in 1577 ; and the Accademia della Crusca, founded in 1582, which has published several edi- tions of its great Italian dictionary.^^ In addition to these organizations seriously devoted to the encouragement of literature and the arts, a host of imitations sprang up all over Italy during the sixteenth century. Perhaps the gaiety of their proceedings was considered to find sufficient warrant in the 13 Carutti, * ' Breve storia dell 'Accademia dei Lincei,'' p. 157. 11 splendid suppers offered to the academy of Pomponio by the wealthy German Goritz, regarding which Ginguene^* quotes the remarks of an earlier authority: Ainsi, dit avec un juste sentiment de regret, le bon Tiraboschi, ainsi parmi les verres et les jeux d 'esprit, on cultivait joyeusement les lettres, et les plaisirs memes servaient h en encourager et ^ en ranimer 1 'etude. Leonardo da Vinci founded and directed the first scientific and experimental acad- emy in Italy.^^ Another early academy de- voted to the pursuit of science was the Academia Secretorum Naturae of Naples, which dates from 1560. Of special interest to the modem inves- tigator is the Accademia del Cimento, which possessed a large collection of physical in- struments, many of which are now pre- served in the Galileo Museum at Florence. The ''Saggi di Naturali Esperienze" made in the laboratories of this institution is an admirably illustrated account of early academic activities. The experiments, 1* Ginguene, ' ' Histoire literaire d 'Italie, ' ' Vol. 7, p. 353. 15 Librj en Italie," Vol. 3, p. 30. 12 which are described in great detail, with the aid of excellent woodcuts of instru- ments, are in some cases attributed to Galileo, Torricelli and other investigators, and in other cases are said to have been first performed in France. They include a wide variety of subjects, such as the effects of artificial freezing on various waters, wines, acids and oils, the compression of liquids, various phenomena in a vacuum, the electrical properties of amber, and the motion of projectiles. This important volume was published in 1666, ten years after the establishment of the Academy, which lasted only during this period. The one great Italian acad- emy of science which still survives is the Accademia dei Lincei, founded by Federico Cesi in 1603. His vast plans of organiza- tion for the Academy, resembling those of the religious and military orders of the day, are described in an unpublished work en- titled the **Linceografo." The Academy was to comprise establishments in the four quarters of the world, where the members would lead a common life in the midst of libraries, museums, observatories, labora- tories and botanic gardens, provided with 13 every requisite nieans of research, and in constant communication with the other con- stituent bodies of the organization. The name Lincei, or Lynx-eyed, was taken in recognition of the reputation of the lynx for extreme penetration of vision, "vedendo non solo quello che e di fuori, ma anche cid eke dentro si asconde."'^^ After a stormy period of youth, during which Cesi and his three fellow organizers underwent many vicissitudes, the Academy was vigorously revived in 1609. Two years later, to its lasting renown, it was joined by Galileo, whose earliest telescopic dis- coveries had just been made. Under this stimulus, and aided by the widespread interest in Galileo's work, the Academy now advanced rapidly. While devoting special attention to the mathematical and physical sciences, it did not neglect the cultivation of literature, counting among its members historians, poets, antiquarians and philologists. Ite cosmopolitan char- acter is indicated by the diverse nationality of its membership, which was drawn from many of the nations of Europe. An Eng- 16 Camtti, ' ' Breve storia dell 'Accademia dei Lincei,'' p. 8. 14 lish member of this period was Francis Bacon.^^ In November, 1612, Galileo communi- cated his discovery and observations of sun- spots, which were published by the Acad- emy under the title **Istoria e Dimostra- zioni intorno alle Macchie Solari." The manuscript of this epoch-making discovery is still preserved by the Academy. This was followed in 1622 by his * ' Saggiatore, " published in great haste, to avoid interfer- ence from the Church. Two years later he demonstrated at Eome the use of the microscope, so named by Fabri, a member of the Lincei. In 1629 Galileo completed his dialogue on "Due Massimi Sistemi del Mondo, ' ' and proposed to go to Eome to see it through the press.^^ Limitations of space forbid mention of the memorable events of this time, during which the Academy supported Galileo in his difficulties with the Inquisition, and accepted the resignation of Valerio, who had attacked his doctrines. It was a stir- ring period,, full of new and vigorous thought, which sharply conflicted with the 17 Carutti, op. cit., p. 26. 18 Ihid., p. 28. 15 traditions of a vanishing age. Led by such men as Cesi, Porta, Galileo and Colonna, the Lincei played a prominent part in the development of the scientific advance of Italy and in the cultivation of the growing love of truth which spread throughout the civilized world. But in 1830 the Academy came to a sudden end, attributed by Carutti to the withdrawal of the patronage of Cardinal Barberini.^^ Since that date it has seen several re- vivals, which are described in the history from which the present notice is derived. Eeconstituted under Victor Emmanuel II. in 1875 as the Reale Accademia dei Lincei, it now flourishes as the national academy of Italy. The class of physical, mathe- matical and natural sciences has 55 mem- bers, 55 national correspondents, and 110 foreign members. The class of moral, his- torical and philological sciences has 45 members, 45 national correspondents and 45 foreign members. The president belongs to one class, the vice-president to the other, and each has a secretary and an assistant secretary.^** 19 Op. cit., p. 97. 20 See revised statutes, Carutti, op. cit., p. 245. 16 The home of the Lincei in the Palazzo Corsini is admirably adapted for the pur- poses of an academy. The collections in- clude an extensive library, rich in rare books and manuscripts, and a large gallery of paintings, most of which is open to the public. The annual meeting, held in the great hall of the palace, is a very impressive function, attended by the King and Queen and other members of the royal family, whose keen and intelligent interest in the work of the Academy is a powerful incen- tive to increased effort and broader useful- ness. THE PARIS ACADEMY OF SCIENCES A brilliant and inspiring picture of the Paris Academy of Sciences at the zenith of its development and fame may be found in the opening chapter of Merz 's * ' History of European Thought." This Academy, or- ganized through the efforts of the far-seeing statesman Colbert at the period when New- ton was engaged in the composition of his '*Principia," has probably exerted a more favorable influence on the progress of sci- ence than any other similar institution in Europe. Enjoying both the moral and 17 financial support of the French govern- ment, and permeated by an enthusiasm for scientific research which led its members to develop the most extensive cooperative projects, it offers a pattern which other academies may well seek to imitate. Great as it remains to-day, the period in its his- tory which deserves our most careful con- sideration is that inspiring epoch, at the end of the eighteenth century, when France was everywhere recognized as the leader of the scientific world. The academicians named by Colbert held their first informal meeting in the library of the Hotel Colbert in June, 1666. In the words of Fontenelle, heaven seemed to favor the rising company, which was for- tunately able to observe two eclipses within the short interval of fifteen days. The second of these was observed with the aid of an instrument devised by Huygens (who was one of the members), and per- fected later by Auzout and Picart — the well-known micrometer of the astronomer. The original group, composed wholly of mathematicians and astronomers, was soon enlarged to sixteen, through the addition of Claude Perrault, Mariotte and other 18 well-known chemists, physicians and anato- mists. Laboratories and collections were established in the Bibliotheque du Roi, and the astronomical instruments were mounted in the garden, awaiting the completion of the great observatory designed by Perrault, where some of the meetings were subse- quently held. Picart undertook the meas- urement of an arc of the meridian which, when completed by Cassini, removed the last doubt of Newton as to the theory of gravitation. He was also sent to Denmark to determine the position of the ancient observatory of Tycho Brahe. Geographical maps were corrected and the latitudes and longitudes of a great number of points were measured. Richer went to Cayenne to determine the length of the pendulum and to make other observations. In short, the greatest activity reigned under the personal stimulus of Colbert, whose correspondence shows how large an amount of time he de- voted to the interests of the Academy. Well-known names were added to the list of members, including those of Roemer, who determined the velocity of light from the eclipses of Jupiter's satellites; Cassini, the first of a remarkable lineage of astron- 19 omers; the anatomist du Vemey; and the great Leibnitz. Under Louvois, the successor of Colbert, the Academy languished, but Bignon's plan of reorganization, adopted in 1699, inaugu- rated a new period of progress. The Acad- emy was provided with quarters in the Louvre, where it remained until Napoleon assigned to the Institute the former College Mazarin, which it still occupies. Its unpub- lished memoirs were promptly printed, and were so favorably received by the public that as many as three editions were some- times demanded. At this period a class of **associes libres" was established, to which such men as Turgot, the engineers Perronet and Belidor and Bougainville the explorer have since belonged. During the eighteenth century the Acad- emy attained a height only surpassed dur- ing the great epoch following the Revolu- tion. Among the important events of this century were the mathematical researches of Clairaut and d'Alembert; the expedi- tions of Clairaut and Maupertuis to Lap- land and of Godin, Bouguer and La Con- damine to Peru, for the measurement of arcs of the meridian; the similar under- taking of La Caille at the Cape, where he also determined the lunar parallax in co- operation with astronomers in the northern hemisphere and measured the positions of ten thousand stars ; and the observations of the transits of Venus in 1761 and 1769 by Pingre at Rodrigues' Island, LeGentil in India, and Chappe in Siberia and Cali- fornia. The Cassinis continued their exten- sive astronomical and geodetic investiga- tions in l^tance, where the activity of astronomical research is illustrated by the fact that when Bernouilli came to Paris in 1760 he found, in addition to the original, observatory, eight or ten other observatories engaged in investigation under the direc- tion of academicians. Lalande, known as a severe critic, wrote in 1766: The collection of Memoirs of tlie Academy of Sciences is the richest storehouse of astronomical knowledge that we possess. But the work of the Academy was by no means confined to astronomy and its sister sciences. Through the investigations of its chemists, the way was prepared for the creation of modern chemistry by Lavoisier. Reaumur, Buffon and their contemporaries were making extensive contributions to 21 natural history, while Haiiy was laying the foundations of mineralogy. At the same time Geoffroy and the three Jussieus shared with Linnaeus the honor of creating the science of botany. Under such conditions it is not surpris- ing that the nation should turn to the Acad- emy for assistance and guidance in many of its enterprises. Ministers, parliaments, administrators and state assemblies often sought its aid and accepted its decisions. So commanding was its position that when all the academies were suppressed under the Revolution, it was stipulated that the Acad- emy of Sciences should provisionally con- tinue its functions and receive its annual revenues from the state. As there are still those who see in a national academy a menace to true democ- racy, and who criticize our own National Academy on this score, the attitude of the revolutionists toward the Paris Academy is not without interest. In the report on public instruction made by Talleyrand to the National Assembly in 1791, on behalf of the committee, it was proposed to estab- lish a National Institute to continue and extend the functions of the various exist- 22 ing academies.^^ In a later report on behalf of the Committee on Public Instruction, Condorcet showed that the only satisfactory- method of determining the membership of such an academy is to leave the elections to the members themselves.^^ Article 298 of the Constitution, adopted August 22, 1795, declares : n y a pour toute la Eepublique un Institut na- tional charge de recueillir les decouvertes, de per- feetionner les arts et les seiences.23 This differed from the former group of academies mainly in the unity of the aca- demic body, which covered the whole range of knowledge (though the Academic Fran- Qaise was not represented) , and the equality in number and privilege of the members resident in Paris and the non-resident members of the provinces.^* Far from losing its prestige through the effects of the Revolution, the Academy of Sciences rose to its greatest success in the years foUow- 21 Hippeau, * ' L 'instruction publique en France pendant la revolution," Vol. I., p. 102. z^IUd., p. 327. 23 Simon, * ' Une Academie sous le Directoire, ' ' p. 39. 24 Simon, op. cit., pp. 44, 46, 50. 23 ing the Terror, and formed, with its sister academies, the chief connecting link be- tween the modern democracy and the old regime.^^ The National Institute, as thus consti- tuted, lasted until 1803, when Napoleon Bonaparte again reorganized it. The mem- bers of the first class (Academy of Sci- ences) were grouped in two divisions, con- taining eleven sections in all. The two secretaries, no longer connected with any section, were made permanent. This or- ganization, with no essential change, still remains in force. The law of 1803 sup- pressed the national associates, replacing them in the case of the Academy of Sci- ences by 100 correspondents (national and foreign), increased to 116 in 1899. It is int-eresting to remember that Napo- leon took an active part in the Academy of Sciences, of which he was elected a member in 1797. During the expedition to Egypt he invariably signed himself *'Le membra de rinstitut, general en chef."^^ His appreciation of the importance of scientific 25 Maury, ' ' L 'aneienne Academie des Sciences/' p. 1. 26 Simon, op. cit., p. 40. 24 research is amply illustrated by the dis- tinguished company of investigators which he took with him on this expedition, where he organized the Institute of Egypt in Cairo, and proposed to establish an astro- nomical observatory.^'' The extensive and superbly illustrated report of his investi- gators on the antiquities of Egypt was the first great step in Egyptian archeology, leading to the successful labors of Champol- lion, Mariette and Maspero, and the domi- nance of the French school in Egypt even under British control. In the great days of the First Empire began the brilliant period in the history of the Academy which Merz so justly empha- sizes. With such members as Lagrange, Laplace, Legendre and Cauchy in mathe- matics; Messier, Arago, Lalande and Del- ambre in astronomy; Biot, Ampere, Fourier, Fresnel, Becquerel and Regnault in physics ; BerthoUet, Gay-Lussac, Dulong, Dumas and Chevreul in chemistry ; Cuvier, de Jussieu, Lamarck and Geoffroy Saint- Hilaire in biology, and with others equally celebrated in other fields, it is not sur- prising that the Academy commanded the 27 ' ' M^moires sur I'Egypte," Paris, An VIII. 25 respect and the admiration of the civilized world. Some of the elements which have entered into the success of the Paris Academy are not difficult to recognize: the sympathy and support of such statesmen as Colbert and Napoleon, who appreciated the funda- mental importance of science to the nation, as Alexander the Great and the Ptolemies had done before them; the cooperative spirit which led the members to work to- gether for a common cause; the perfection in the hands of the academicians of the powerful mathematical methods which con- tributed so largely to the application and widespread usefulness of Newton's dis- coveries; and the popularization of science and the diffusion of the scientific spirit through the brilliant writings of Cuvier, Laplace, Buffon, Fontenelle and many others. Far from disdaining the transla- tion of technical papers into attractive literature, these great leaders set an exam- ple which was followed hardly less effec- tively, though in a different manner, by Davy and Faraday at the Royal Institu- tion. Cuvier, above all others, represented the academic system at its best. In his 26 eloquent Eloges on the most eminent scien- tific men of the day, he paints a picture of scientific investigation and progress with the hand of a practised artist. The wide field of science, and the rich results flowing from the labors of investigators skilled in many departments of knowledge, hatrsenever been more admirably depicted than in the discourses of this distinguished perpetual secretary.^^ GERMAN ACADEMIES In Germany, the division of the empire into many kingdoms, preventing the cen- tralization which has been so important a factor in France and England, and the pre- vailing influence of the universities as re- search laboratories, where every teacher is not only a scholar but a productive inves- tigator, have stood in the way of the devel- opment of a single dominant national insti- 28 For the data used in this account of the Paris Academy I am largely indebted to the work of Maury, Simon, Merz and Hippeau, al- ready cited, and especially to the article by Dar- boux in "L'Institut de France," Vol. 2 (Paris, 1907). See also the useful series of articles by Dr. E. F. Williams on the Paris, Berlin and Vienna Academies in the Popular Science Monthly, 27 tution like the Paris Academy of Sciences. During the eighteenth century the great men of science, including Leibnitz, Euler, Haller, Tobias Mayer, Lambert, Olbers and Alexander von Humboldt, were widely scattered, and in most cases had little to do with the universities, although these were already distinguished for classical scholar- ship. But by the publication of his '*Dis- quisitiones Arithmeticae, " and the inven- tion of his improved method of calculating planetary orbits. Gauss, of the University of Gottingen, placed himself on a level with the great French mathematicians and inaugurated a new era in German science. By the use of this method, von Zach and Olbers were enabled to recover the first of the minor planets, Ceres, which had been lost on its approach to the sun. Gauss also introduced exact science into the university curriculum, but it was through the work of Jacobi that the great school of German mathematicians was set on foot a quarter of a century later. The contemporary establishment of chemical laboratories by the universities, and the widespread influ- ence of Liebig, Mitscherlich and Wohler in chemistry, and of Schleiden and Schwann 28 in botany and zoology, determined for all time the place of the German university in science. Schleiden's cell theory of plant structure and growth was the source of a long series of discoveries, which established the supremacy of Germany in physiology.^^ In spite of the unfavorable conditions already mentioned, four great academies have nevertheless arisen in Germany, those of Berlin, Munich, Leipzig and Gottingen. Among these, partly because of the leader- ship of Prussia in the German empire and partly from other causes, the Berlin Acad- emy stands foremost. Founded in 1700 as the Societas Begia Scientiarum, through the influence of Leibnitz and in accordance with his plans, it has contributed in the highest degree to the advancement of Ger- man scholarship. Its present designation as *'Akademie der Wissenschaften" indi- cates the broad scope of its activities. The fifty regular members are divided into two classes, each of which consists of two sec- tions, presided over by a permanent secre- tary. The first class comprises the sections of physics and mathematics, the second 29 See Merz's *' History of European Thought,'' Vol. 1, Chap. 2. 29 those of philosophy and history. The secre- taries preside in turn at the meetings o ^i^.o P (U i^ O u !-» Of a 0^£ o o o r1 «*-■ .rH "^ OS •S e 9.2 ^^ ^•C o'*^ ^ ^--^ n3 S O (U CJ o '^ a-2 s § a « C OOl O O I to ^ I g 0000 O O O CO o o O Ot-^O g O O J-- o O^ 0^0 CO o o o '^6 000 000 000 000 o >o o LO -^ I-t O t^ o o o O rH O «0 O O CO o t>^ o O t^ O t^ o o - o Oi 00 0"j 10 CO t^ (M rH »0 CO 00 05 Oi rH r-( GO OO CO QO 00 05 Oi 00 00 ^<^pHOt-5 a