- ty & af QL ? “) ; Ma LIVES fh} es fo — NOH é OF EMINENT ZOOLOGISTS, FROM ARISTOTLE TO LINNAEUS: WITH INTRODUCTORY REMARKS ON THE STUDY OF NATURAL H ISTORY, AND OCCASIONAL OBSERVATIONS ON THE PROGREsS OF zooLocy. / i BY W. MACGILLIVRAY, ravels and Researches of Alexander Von Humboldt.” WITH A PORTRAIT OF LINNAEUS ENGRAVED By HORSBURGH, SECOND EDITION. EDINBURGBPS Rig OLIVER & BOYD, TWEEDDALE COUR AND SIMPKIN ‘¢ MARSHALL, LONDON. MDCCCXxxIy, 5 A.M, BR.G.E.. So, Ah ENTERED IN STATIONERS’ HALL. Printed by Oliver & Boyd, Tweeddale Court, High Street, Edinburgh. PREFACE. Naturau Hisrory has of late become a favourite pursuit in this country; and although its progress — as a study may not have been equal to the enthusi- asm which it has excited, its general effect is unques- tionably beneficial. In consequence of the interest which it has created, a great variety of works, from the simple catechism to the elaborate treatise, have appeared in rapid succession. But while compends and manuals are thus multiplied, little has been said with regard to the private history and profes- sional pursuits of ‘he distinguished persons who have contributed most to the general stock of know- ledge from which these popular essays have in a great measure been derived. We have, therefore, endeavoured in some degree to supply this defi- ciency, by presenting a series of Lives of the more Eminent Zoologists, from Aristotle to Linneus in- clusive. In the Introduction will be found a view of the objects, to the investigation of which the talents of the individuals whose annals we record were prin- cipally directed. The remarks there offered are cal- culated to enable such readers as may not have been 4 PREFACE. previously acquainted with the subject to compre- hend many circumstances which might otherwise appear unintelligible. Few, even of those who have made considerable progress in the study of nature, are aware of the difficulties with which the ancient philosophers had to contend. For this reason we have begun with Aristotle, the founder of Natural History among the Greeks. A biography of the elder Pliny, the great- est of Roman writers in this department, comes next in order. The lives of the more remarkable zoc- Jogists who flourished after the revival of learning in Europe are briefly sketched ; while some degree of connexion has been given to the series by remarks on the progress of knowledge at that period, on the labours of their contemporaries, and on the princi- pal works which occasionally issued from colleges and museums. Although it is unnecessary here to enu- merate all the names that enter into the catalogue of zoological writers of the sixteenth and seven- teenth centuries, Swammerdam, Ray, and Reau- mur, may be particularly mentioned. The great Linneus witnessed the termination of those dark ages, during which his favourite pursuits were treat- - ed with comparative neglect, and the commencement of a happier era, in which they were to assume the dignity of a science. His life is given with more detail than those of his predecessors, both because the facts relating to him are more abundant, and because he exercised a more decided influence upon the opinions of Europe. The volume concludes with a notice respecting his son, which forms an appro- priate appendix to that of his more distinguished parent. PREFACE. i) Although the lives of studious men may, gene- rally speaking, present fewer striking incidents than those of warriors, navigators, and politicians, yet the memoirs of naturalists are always extremely in- teresting, on account of the connexion in which they are necessarily placed with whatever is curious, beautiful, or sublime in creation. Some of them, too, will be found to have occupied a high station in society; others to have forced their way throughnum- berless obstacles, before obtaining the end of their ambition ; while a third class are seen perishing in the midst of their career, the victims of indiscretion, or of neglect. Certain highly-gifted individuals, again, shine as bright luminaries in the firmament of science, and extend their influence over the whole of the civilized world ; while the labours of nearly all have been in some degree productive of good. Per- haps there is no order of men to whose charge so little positive evil can be laid; and if their stu- dies do not always elevate the mind above the corroding cares and cankering jealousies of life, they at least tend to bring it into a more immediate re- lation with the great Creator and Governor of the universe. It is not therefore imagined that the general reader will find the following sketches destitute of interest, even although he should possess only a superficial knowledge of the principles and phenomena to which they refer. The professional student, on the other hand, cannot fail to obtain in them information which will prove of the utmost value to him, whe- ther viewed as a guide, or as a stimulus to exertion ; and even the accomplished naturalist may derive pleasure from the general review of the labours of 6 PREFACE. those to whom he is mainly indebted for the know- ledge which he possesses. The authorities which have been consulted with reference to these Lives are too numerous to be mentioned here ; but the more important are pointed out as occasion presents. It may be sufficient to re- mark, that no modern work on Natural History would be deserving of public confidence, which did not acknowledge some obligation to the valuable labours of the French School, and of Sir James Ed- ward Smith in our own country. The second volume, already in preparation, will be devoted to the most distinguished writers in the same department, from Pallas, Brisson, and Buffon, down to Cuvier, and will conclude with General Reflections on the present state of the science. EDINBURGH, June 1834. CONTENTS. INTRODUCTION: Remarks on the Estimation in which Natural History is heid at the present Day, and on its Importance—Men are more conver- sant with Nature in uncivilized Life—The original State of Man, and his progressive Acquisition of Knowledge—General View of the Objects of Natural History: the Earth’s Surface and Struc- ture, the Ocean, the Atmosphere, Plants, and Animals—Defini- tion of Mineralogy, Botany, and Zoology—Sketch of the Pro- gress of Zoology: four Eras distinguished, as marked by the Names of Aristotle, Pliny, Linnzus, and Cuvier, ARISTOTLE. SECTION I. REMARKABLE EVENTS IN THE LIFE OF ARISTOTLE. Introductory Remarks—Birth and Parentage of Aristotle—He studies Philosophy under Plato—Is highly distinguished in the Academy—Retires to Atarneus on the Death of his Master— _ Marries—Is invited by Philip to superintend the Education of Alexander—Prosecutes his Studies at the Court—On the Suc- cession of Alexander, returns to Athens, where he sets up a 3 CONTENTS. School in the Lyceum—Corresponds with Alexander, who sup- plies Means for carrying on his Investigations—Alexander finds Fault with him for publishing some of his Works, and after put- ting Callisthenes to Death, exalts his Rival Xenocrates—On the Death of Alexander, he is accused by his Enemies of Impiety, when he escapes to Chalcis, where he dies soon after—His personal Appearance and Character—His Testament—History of his Writings—Great Extent of the Subjects treated of by him—His Notions on elementary Bodies—The Material Universe —The Changes to which the Earth has been subjected, and the Eternity of its Existence—Conclusion,...............-0e-0008 Page 38 SECTION II. ACCOUNT OF ARISTOTLE’S HISTORY OF ANIMALS. Aristotle’s Ideas respecting the Soul—His Views of Anatomy and Physiology—Introduction to his History of Animals, consisting of Aphorisms or general Principles—His Division of Animals ; their external Parts ; their Arrangement into Families ; their in- ternal ‘Organs ; Generation, Sis......<¢5:00.00+0s0:00s-ceuustseeeneete ay) PLINY THE ELDER. ACCOUNT OF HIS LIFE AND WORKS. Introductory Remarks—Notice respecting Pliny by Suetonius— Account of his Habits, as given by his Nephew, Pliny the Younger —Various Particulars of his Life—His Death occasioned by an Eruption of Vesuvius—Buffon’s Opinion of the Writings of Pliny —Judgment of Cuvier on the same Subject—Brief Account of the Historia Naturalis, including Extracts respecting the Wolf, the Lion, and other Animals—Cleopatra’s Pearls—History of a Raven—Domestic Fowls—General Remarks,...............0.000 74 .o CONTENTS. GESNER, BELON, SALVIANI, RONDELET, AND ALDROVANDI. ZOOLOGISTS OF THE SIXTEENTH CENTURY. Conrad Gesner—Account of his Life and Writings, preceded by Re- marks on those of lian, Oppian, Albertus Magnus, Paolo Gio- vio, and Hieronymus Bock—Pierre Belon—Hippolito Salviani —Guillaume Rondelet—Ulysses Aldrovandi—General Remarks on their Writings, and the State of Science at the Close of the Beste ME eC CHUULYS chicos 50 cos acces oev'evs olosessoeuteaoenete cd tet tesa tee 386 LIVES OF EMINENT ZOOLOGISTS. Introduction. Remarks on the Estimation in which Natural History is held at the present Day, and on its Importance—Men are more conver- sant with Nature in uncivilized Life—The original State of Man, and his progressive Acquisition of Knowledge —General View of the Objects of Natural History: the Earth’s Surface and Struc- ture, the Ocean, the Atmosphere, Plants, and Animals—Defini- tion of Mineralogy, Botany, and Zoology—Sketch of the Pro- gress of Zoology: four Eras distinguished, as marked by the Names of Aristotle, Pliny, Linnzus, and Cuvier. AT no period in the progress of civilisation have the advantages to be derived from the study of nature been so highly appreciated as at the present day, when descriptions and representations of the various objects by which we are surrounded, or which have been observed in distant countries, are issuing from the press in a variety of forms calculated to attract the attention and to gratify the taste of almost every elass of society. Only a few years ago, Natural History was held in some degree of contempt by the enlightened as well as by the ignorant ; its cul- A 18 INTRODUCTION. tivators were considered as triflers, wasting their energies upon that which could profit nothing ; and the information which it affords was looked upon as unworthy of the attention of persons fitted for intellectual pursuits. Now, it is raised in popular estimation to the highest dignity, and is pronounced to be a science capable of exercising the most splen- did talents, and of affording pleasure to the most improved minds. Of the several changes that have recently taken place in society this is not the least important. The diversified productions of Nature,—those objects, in the formation of which have been exercised unlimited wisdom and power,—are not now considered beneath the notice of the wisest of the sons of men. It still, however, remains to be perceived, that in the con- struction of the familiar fly that buzzes through our apartments, not less than in the frame of the mighty elephant,—in the simple blade of grass that springs from between the stones of the pavement, not less than in the knotied oak or the graceful palm,— in the smail cube of salt, not less than in the gra- nitic mountain or the voleanic cone,—there is some- thing of a mysterious nature, the comprehension of which would be a much more glorious achievement than any that the human intellect has yet per- formed. The ship that carries the adventurous merchant over the great ocean is an object worthy of our admiration ; but how complicated is its ap- paratus, compared with the fins of the most com- mon fish! The balloon that floats calmly in the atmosphere,—what an unwieldy instrument is it, compared with those beautiful organs of Divine workmanship by which the swallow is conveyed GEES fi i SE } Sch AST, xR b 4 INTRODUCTION. 19 from the equatorial to the polar lands, or pursues its prey through the pathless air! Man, in the early stages of his existence, is drawn by an instinctive power to observe and admire na- ture. The love of it, too, glows in the breast of every child. We have never, indeed, witnessed the actions of men in the infancy of society, and therefore cannot estimate the influence exercised upon them by external objects; for the savages whom the European. wandering over the globe in quest of gold or knowledge, finds in the deserts or in the remote isles of the ocean, are evidently de- graded beings who have degenerated from a nobler stock. But the history and traditions of most of the tribes with which we are acquainted, and espe- cially of those inhabiting the American continent, show that at some remote period they must have possessed more knowledge than they exhibited at our first acquaintance with them. Revelation, too, as- sures us that man was made perfect ; and philo- sophy has not succeeded in forming a theory to ac- count for the physical or moral diversities exhi- bited by our race, approaching in consistency to that which may be drawn from the pages of the Sa- cred Writings. “ Man,” says Cuvier, “ who was cast feeble and naked on the surface of the globe, seemed created for inevitable destruction. Evils assailed him on all sides; the remedies remained concealed from him, but he had been endowed with genius for discovering them. The first savages gathered in the woods some nutritious fruits, some wholesome roots, and thus satisfied their more urgent wants. The first shepherds perceived that the stars follow 20 INTRODUCTION. a regular course, and were directed by them in their journeys over the plains of the desert. Such was the origin of the mathematical and physical sciences. “When the genius of man had discovered that it could combat Nature by her own means, it no longer rested; it watched her incessantly, and continually wrested from her new conquests, each marked by some improvement in his condition. Then succeeded, without interruption, meditating minds, which, being the faithful depositaries of acquired knowledge, and continually occupied with connecting and giving a vivifying unity to its parts, have led us, in less than four thousand years, from the first attempts of those pastoral observers to the profound calculations of Newton and Laplace, and to the learned classifications of Linneus and Jussieu. This precious inheritance, always aug- menting, borne from Chaldea to Egypt, from Egypt to Greece, hidden during periods of misfortune and darkness, recovered in a happier age, unequally dis- persed among the nations of Europe, has been every where followed by riches and power; the nations which have welcomed it have become the mistresses of the world, while those which have neglected it have fallen into feebleness and obscurity.” Had man, in his original state, been cast feeble and naked on the surface of the globe, he could not have survived a single week, with all the elements of nature combined against him. His first experi- ment on the tiger or the asp, even his first morsel of food, might have been fatal to him. He must have been formed perfect in knowledge; or, being formed in ignorance and feebleness, he must have been protected by a power capable of controlling INTRODUCTION. Alf the influences of surrounding nature. But before we proceed to offer a few remarks on the origin and progress of zoological science, it seems expedient to mark the subjects to which the attention of the na- turalist is directed. If we cast our eyes around, and survey, in a com- prehensive manner, the objects which exhibit them- selves to our view, we may form some idea of the occupations of those individuals who devote them- selves to the examination of nature. The surface of the globe presents in part a vast expanse of water bounded by the sinuosities of the shores, and in part an undulating succession of plains and mountains. It is enveloped with an aérial fluid, which extends to a considerable height, sometimes transparent, and sometimes obscured with masses of floating vapour. The land is diversified by slopes of every degree of inclination,—extensive plains, depressions and hollows, ridges and protuberances of various forms ; the highest, however, bearing a very insignificant proportion to the earth’s diameter. ‘The waters, which cover more than two-thirds of the globe, se- parate the land into unequal portions, dividing it into continents and islands. Tracts of elevated ground traverse these in various directions, constitut- ing the elongated mountain-groups named chains ; which, being intersected by valleys and containing the sources of numberless streams, slope towards the adjacent countries. Other portions of the surface consist of irregularly-grouped eminences, of infe- rior height, interspersed with corresponding valleys. Elevated platforms are sometimes met with, and the plains and slopes are not unfrequently diversi- fied with hills. The depressed parts of mountainous IY INTRODUCTION. regions present great diversity of form, extent, and direction, and often exhibit basins or hollows, which are occasionally filled with water. Descending into the plains, we find that they are seldom perfectly level, but are formed into slopes of small inclination and of various extent. The pam- pas of South America, for example, stretch from the base of the Andes to Buenos Ayres, over a space of 900 miles ; and in Africa are vast expanses of nearly level land, where the traveller, day after day, sees the horizon preserving the same distance as he pro- ceeds, and bounding an ocean of arid sand. Large flats are also found at great elevations above the sea, such as those of Tartary, Thibet, and Mexico. Of the other inequalities of the land, the more re- markable are the cavities forming lakes, and the grooves occupied by the beds of rivers. ‘The former are of all. sizes, from several hundred miles in cir- cumference down to very small dimensions, and occur in all situations,—between mountain-chains, like the Caspian,—in plains, like Onega,—and along the course of rivers, like those of Canada. The streams necessarily flow in the line which marks the greatest depression of the valleys; although, in some instances, towards their mouths, they occupy a higher level, their beds having been raised by the deposition of the debris carried down by the torrent. The bottom of the ocean, being merely the conti- nuation of the surface of the land, may be supposed to present inequalities of a similar nature, although, owing to the action of currents, they are probably not so distinctly marked. The transition from what is above to that which is under the water is not in general denoted by any striking phenomenon, ex- INTRODUCTION. 93 cepting the not unfrequent occurrence of long ranges of cliffs, pebbly beaches, and accumulations of sand. When the coast is low and flat, the depth of the sea in its vicinity is usually small ; whilst along a rocky and abrupt shore it generally presents a depression in some measure corresponding to the height of the land. The existence of submarine chains of moun- tains is established by the numerous shoals and rocks which are to be considered as their summits. On these, coral reefs and islands have been gra- dually raised by myriads of zoophytes. The mighty mass of waters, which is collectively termed the sea, occupies, as has been already men- tioned, more than two-thirds of the surface of the globe. Its chemical composition, its tides, its eur- rents, and all the varied phenomena which it pre- sents, afford subjects of highly-interesting research. The atmosphere, in like manner, which envelopes the earth, supplies, in its ever-varying aspects, its motions, its electrical phenomena, and the influence which it exercises on animal and vegetable life, an object of investigation pregnant with curious and useful knowledge. The mysterious agency of subterranean fire has elevated great masses of rocky matter in various parts of the globe. Earthquakes have effected ex- tensive and remarkable changes upon its surface ; the waters of the ocean have alternately worn away the shores and eked them out by depositions of sand and mud; the rivers have furrowed the land, and carried the debris of the higher regions to the valleys and plains ; while air and moisture have exer- cised their decomposing influence upon the hardest substances. By the action of these powers the earth 24 INTRODUCTION. . has become a fit receptacle for the varied forms of animal and vegetable existence with which we see it so profusely stored. The variable distribution of heat has produced a striking effect in modifying the earth’s surface. The cold of the polar regions covers them at all sea- sons with an extensive deposite of snow and ice, the margins of which are periodically dissolved by the increasing warmth of summer, to be repaired during the succeeding winter. The numberless icebergs, originally formed on the land or in its vi- cinity, floating on the ocean, and drifted by winds and currents, often pass into more genial regions, producing occasional variations of temperature. The elevated ridges of mountains experience a similar degree of cold, and in all climates, even in the tor- rid zone, are covered towards their summits with perennial snow. Limited as are our powers of examining the inte- rior of the globe, we yet find in its crust indications of a power which, by operating so as to produce apparent confusion, has effected results highly be- neficial to the beings by whom the earth has been peopled. The strata, at first regularly superimposed upon each other, and consisting of those diversified materials which are supplied by the disintegration of pre-existing rocks, have been broken up, and in- clined in every possible degree, so as to form those depressions and elevations which we every where observe on the surface. These inequalities have been increased by the protrusion of masses from the more central regions, and the whole has been sub- jected to the agency of powerful currents of water, by means of which the angular cavities and projec- INTRODUCTION. 95 tions have been smoothed or filled up. The consi- deration of these phenomena constitutes a distinct branch of natural science. The mountains, rocks, and strata, are composed of ingredients which in themselves are worthy of examination, and capable of affording intense inte- rest. The extremely-diversified forms which these substances assume, their various properties, their uses in the economy of nature, and the purposes to which they may be applied by man, render their investi- gation not less useful than pleasant. A most extensive and delightful field of observa- tion presents itself to us in the vegetable bodies with which the surface of the land, and even the depths of the ocean, are so profusely furnished. The va- rious regions of the globe are not less characterized by the form and grouping of the plants which have been allotted to them, than by the comparative ac- tivity of their vegetating power. The wastes of Europe, covered by ling, heaths, rushes, and sedges, exhibit little change of aspect under the variations of temperature and the revolutions of the year ; while the plains of Venezuela, which during the drought are covered with a layer of sand, and pre- sent only a few withered palms scattered along the margins of muddy pools, are converted in the rainy season into an ocean of luxuriant vegetation. In the equinoctial regions of the globe, palms, arborescent ferns, and a multitude of magnificent trees, inter- twined with flowering lianas hanging in festoons, form themselves into impenetrable forests, whereas the frigid-regions of the arctic circle hardly produce plants a foot in height. The solemn and stately pines of the north of Europe have a very different 26 INTRODUCTION. aspect from the slender-twigged beeches and chest- nuts of its temperate regions, or the laurels and fan- palms of its southern shores. Viewed in relation to their productions, the gelid regions of the globe are not confined to the circum- polar zone, but extend along the summits of the lofty mountains, following the line of perennial snow, which rises from the level of the sea, in Green- land and Spitzbergen, to the height of 14,000 feet in the Andes. These steril tracts nourish only a few species of plants, although the individuals belonging to them are frequently numerous. In the valleys, and on the southern slopes, no sooner has the return- ing heat of summer melted the snow, than a beau- tiful carpeting of verdure, diversified by flowers of va- rious tints, spreads over the soil, displaying an asto- nishing rapidity of development, while the rocks in many places appear covered with cryptogamic plants. Besides mosses, lichens, and other inferior tribes, mul- titudes of ferns make their appearance. Grasses and creeping dicotyledonous plants are fully matured ; and a rich pasturage affords, during the warm season, abundant nourishment to herbivorous animals. Some trees of small size also appear here and there, or even form themselves into thickets and woods. But, in general, the vegetation of these dreary regions, placed on the limits of the habitable earth, is characterized by a paucity of species and a stunted growth. Firs and pines, existing in vast numbers, and re- taining a perpetual though gloomy verdure, cha- racterize the transition from the frigid to the northern temperate zone. This last extends from the parallels of 50° to 40° north latitude, and in its southern borders, the beech, the lime, and the chestnut, mingle - INTRODUCTION. 27 with the trees peculiar to more southern regions. The meadows and pastures, especially those in the vicinity of the sea and in the mountain-valleys, are clothed with a brilliant verdure, which we in vain look for in the other sections of the globe. The warm temperate zone, extending to 25°, pre- sents in general a less beautiful vegetation ; for al- though the heat is greater the humidity is less con- stant. But it is in the torrid latitudes that Nature displays all her magnificence. There the species of tribes, which in other climates are herbaceous, be- come shrubs, and the shrubs trees. Ferns rise into trunks equal to those of pines in the northern regions of Europe ; balsams, gums, and resins, exude from the bark ; aromatic fruits and flowers abound ; and the savage, as he roams the woods, satisfies his hun- ger with the spontaneous offerings of the soil. Here also are all the climates of the globe, and almost all their productions united ; for, while the plains are covered with the gorgeous vegetation of the tropics, the lofty mountains display the forms that occur in the colder regions, and the places intermediate in elevation all the graduated transitions from these to the warmest parallels. The vegetation of the seas presents much less di- versity than that of the land. It is less luxuriant, less elegant, less ornamented, and less productive of substances directly useful to man. There is also less distinction between marine plants of different latitudes ; for the great currents of the ocean, and other causes, render its temperature more equable than that of the atmosphere. The numerous and diversified forms which plants assume, their distribution over the globe, their 28 INTRODUCTION. various qualities and uses, and their internal or- ganization, are subjects which have long occupied the attention of observers. In their reproduction, growth, and maturation, phenomena are presented to us, which are well calculated to excite our admi- ration ; and the curious and diversified apparatus of tubes and cells, in which are circulated the fluids derived from the atmosphere and the earth, although apparently more simple than that of the animal eco- nomy, affords a profound as well as an interesting subject of research. All parts of the earth’s surface, even the deep recesses of caves and mines, the snows of the polar and alpine regions, and the bottom of the sea, are more or less covered with plants. The same may be said respecting animals, which, being much more diversified in their forms and internal structure, and endowed with more wonderful faculties, lead the mind, by the contemplation of their mechanism and habits, to a nearer approach to the great Creator of all things. From the gigantic elephant that roams among the splendid forests of the warmer regions of the earth, the unwieldy hippopotamus that plunges in the pools and marshes of the African wilds, and the timid and graceful giraffe that bounds over the sandy desert, down to the little dormouse that we find slumbering in its winter retreat, to the lem- ming that in congregated myriads overruns the fields of the North, or to the mole that burrows under our feet, we find an astonishing variety of beings, exhibiting forms, instincts, passions, and pursuits, which adapt them for the occupation of every part of the globe. The woods, the plains, the INTRODUCTION. 29 mountains, and the sands of the sea, are replete with life. The waters, too, whether of the ocean or of the land, teem with animated beings. Scarcely is a particle of matter to be found that does not present inhabitants to our view ; and a drop of ditch-water is a little world in itself, stored with inmates of cor- responding magnitude. The consideration of the anatomical structure and external conformation of the many thousands of living creatures that come under our view, would of itself occupy many volumes, were it presented in detail; and even the simplest outline in which it could be produced would require more space than can be devoted to it here. All departments of Nature are full of wonders; but this excels the rest in interest, and is proportionally more difficult to be studied ; although men, contented with super- ficial knowledge, may fancy themselves masters of her secrets when they have merely learned to dis- tinguish some hundreds of objects from each other. Man, separated from all other animals by pecu- liarities of corporeal organization, not less than by those intellectual faculties which are not in any con- siderable degree participated by the other inhabit- ants of the globe, and who is capable of subsisting in every climate, from the arid regions of the torrid zone to the frozen confines of the poles, also belongs in some measure to the study of nature. But the consideration of man includes a multitude of subjects that do not properly belong to Natural History, in the limited sense in which we use the term. It might even be said that it embraces all human knowledge. Thus, the constitution of the human mind, and the structure of the human body, as well as its healthy 30 INTRODUCTION. and morbid phenomena, together with the means of regulating the former and of counteracting the lat- ter, may certainly be included in it. Natural history, however, in its more limited ac- ceptation, may be considered as comprehending the three great kingdoms of Nature,—the mineral, the vegetable, and the animal,—the sciences treating of which are named Mineralogy, Botany, and Zoology. The first of these departments of knowledge compre- hends, along with the consideration of simple minerals, that of the masses produced by the aggregation of these substances, and the changes effected upon them by natural causes. Botany teaches us to distinguish and arrange the subjects of the vegetable kingdom, points out the forms and functions of their organs, investi- gates their internal structure, traces them in their distribution over the surface of the globe, and makes known the various properties which render them noxious or useful to us. Zoology treats of the va- rious tribes of animals, marks their external forms, compares their various organs, describes their ha- bits, discloses the laws which regulate their distri- bution over the continents and islands, arranges them into families according to principles deduced from their structure, and in general makes us ac- quainted with all that belongs to their history. AI- though it is unnecessary here to offer any extended remarks on the cultivation of the vast field which is thus opened up to us, yet, the science of animals being intimately connected with the Series of Lives which we propose to offer to the public, it may not be improper to give ashort account of its origin and progress. In the History of Zoology, four eras are marked by INTRODUCTION. 31 the names of four great cultivators of that science. All knowledge of nature must have commenced in the observation of individuals, or in an intuitive percep- tion of their properties bestowed upon the first man. We may suppose, however, that at some period not remote from the creation of the human race men were left to their own resources, when they were necessarily forced to examine the nature and qua- lities of plants and animals, as well as of all na- tural objects with which they came into contact. The son would learn from the father, and impart to his descendants a certain degree of knowledge acquired by observation. Where the art of writing was unknown, science would advance but slowly ; and even where it was practised, the privilege would probably belong to individuals or families, so that the mass would still be left to their ordi- nary resources. ‘Those who lived in the remote ages antecedent to the Christian era probably knew as much of natural history as the unlettered peasant of our own age and country. Whatever may have been the acquirements of the priests, the sole depo- sitaries of science in ancient India, Chaldea, and Egypt, they perished amid the revolutions of empires. The Sacred Scriptures, however, show that Moses, who was learned in all the wisdom of the Egyptians, had bestowed considerable attention on the animal world; but as these writings were not intended for our instruction in natural knowledge, the observa- tions which they contain on the subject have no re. ference to systematic arrangement. In short, what- ever may have been the knowledge possessed by the subjects of the Pharaohs, or the Hebrews and Greeks of the earlier ages, we do not find that it had assumed 32 INTRODUCTION. any definite form, or constituted a body of doctrine, until the time of Alexander the Great. At this epoch the illustrious Aristotle collected the obser- vations of his predecessors ; added to them those, more extensive and more important, which were made by himself; and, although deeply engaged in the study of other subjects, succeeded in collecting a mass of facts, and in eliciting from them general principles, the accuracy of many of which might surprise us, did we not reflect that, in this depart- ment at least, he followed the true method by which the physical sciences have in our times received so vast an augmentation. He, however, stands alone among the writers of remote antiquity in this field ; for, if others followed in his steps, their works have been lost. Among the Romans, by whom the sciences were carried from Greece to Western Europe, there must have been many naturalists of considerable attain- ments ; but the only writer of that nation whose de- scriptions have come down to us is Pliny the Elder, who flourished under Vespasian. His books on natu- ral history are compiled from the writings of others, and may be considered as a general collection of all that was known in his time. Although he must have possessed opportunities of observing the many rare animals that were brought from all parts of the world to Rome, it does not appear that, by original observation, he added much to the mass of facts ; still he may be viewed as marking the second epoch in the history of zoology, more especially as his works supplied the materials out of which natural- ists in later ages have constructed their systems. As to Elian, a Greek writer, whose treatise was also a 6 INTRODUCTION. 33 compilation, his merits were much fewer, and his absurdities more numerous than those of his prede- cessor. Both were fond of the marvellous, but he was eminently addicted to falsehood. During the long ages of barbarism that succeeded the destruction of the Roman empire all the sciences were lost. On the revival of learning some feeble efforts were made to rescue natural history from its degraded condition ; and at the commencement of the sixteenth century appeared several works on fishes, by Paolo Giovio, Pierre Belon, Rondelet, and Salviani. Belon wrote on birds also, and his observations are remarkable considering the period at which he lived. Conrad Gesner, a physician of Zurich, in his History of Animals, presented a compilation, arranged in alphabetical order, of all that the ancients had left on the subject ; and Al- drovandi, after the labour of sixty years, left be- hind him an immense work on natural history, com- prising no less than fourteen folio volumes. In the seventeenth century, we find our own Ray and Wil- lughby among the most successful students of na- ture. Besides these celebrated individuals, there were others, such as Jonston and Redi, who labour- ed in the field of zoology ; but perhaps the most original authors of this period were Swammerdam and Reaumur, whose minute observations, in ento- mology especially, have not been excelled in accu- racy by those of any subsequent writers. It was not, however, until the middle of the eighteenth century, that a new era was formed by the labours of Lin- neus, who was the first to collect all the known productions of nature, to class them according to simple principles derived from the observation of B ee INTRODUCTION. facts, and to invent a nomenclature at once effi- cient and comprehensive. Since the time of that philosopher natural history in all its branches has been cultivated with extreme ardour. The writers of this period have been nu- merous beyond those of any former epoch ; and as anatomical investigation was successfully applied to the study of zoology, while the objects known were immensely increased, it was soon found that the classifications of the great reformer of the science were in many respects deficient, and that he had fre- quently associated objects which have too little affi- nity to be grouped together in the same class or order. The Systema Nature, in place of forming a complete catalogue of all the objects of nature, “ became,” to use the words of an accomplished author, “a mere sketch of what was to be done afterwards. Even more recent naturalists touched with a timid hand upon the natural grouping of the highest branches of the science, and it was reserved for a mighty genius of our own time to open the path to us, and to smooth the difficulties of that path, by precisely determining the limits of the great divisions, by exactly defining the lesser groups, by placing them all according to the inva- riable characters of their internal structure, and by ridding them of the accumulations of synonymes and absurdities which ignorance, want of method, or fertility of imagination, had heaped upon them.”* This ‘‘ mighty genius,” it is almost unnecessary to add, was the illustrious Cuvier, who, although by no means the only great, and possibly not even the * Mrs R. Lee’s Memoirs of Baron Cuvier, p. 51. INTRODUCTION. 35 greatest zoologist of his time, may, if we are dispos- ed to mark an epoch by a single name, be selected for that purpose. But even this celebrated writer has, in his Régne Animal, merely presented a sketch, leaving to others the task of completing the various departments. They who think otherwise forget that the generic and specific characters of the systema- tist, necessarily condensed, are very inadequate to convey any other than the most superficial know- ledge of the diversified objects of nature. These, then, were the men who progressively reared the structure of zoology. Aristotle was a universal genius ; but with respect to natural his- tory he is to be looked upon chiefly as a zoologist. Pliny was a collector of every thing known in his time, whether true or fabulous, that related to ani- mals, minerals, and plants. Linneus arranged all the objects of nature. He was perhaps greater as a zoologist than as a botanist, although, in the latter capacity, his labours have been more highly appre- ciated, because there have been more cultivators of the science of plants, of which the study requires less laborious investigation, and to many persons is more attractive. Lastly, Cuvier, an original genius, an acute observer, and an accurate reasoner, profit- ing by the accumulated knowledge of ages, remo- delled the system of zoology, and, in his Regne Ani- mal, arranged the series of animals according to principles elicited from the investigation of their structure and relations. The present volume includes the lives of the more eminent zoologists, from Aristotle to Linneus. Those who succeeded the latter will furnish ample materials for another. 36 INTRODUCTION. It is scarcely necessary to remark, that these vo- lumes may either be considered as complete in them- selves, or as introductory to a general and particular description of the various tribes of animals. A work on this most extensive subject is a great desideratum in English literature,—not that books on this depart- ment of science are wanting, but because we have none that present a continuous view of the families and species of the different classes, at once intelligi- ble to the student of nature, attractive to the general reader, and free from that meagreness of phraseology necessarily peculiar to the composers of systematic catalogues. It is not now required of us to point out the ad- vantages that might result from the establishment of natural history as a branch of popular education. These advantages have been repeatedly pressed on the notice of the public ; and, although the system has not been as yet adopted, the time cannot be far distant when the elements of mineralogy, botany, and zoology shall be taught in our schools, along with those branches of knowledge which at present occupy the field, to the exclusion of others not less adapted for the improvement of the youthful mind. ‘< To constitute such pursuits a prominent part of ele- mentary education,” says a popular writer, “ would without doubt be erroneous: it is, however, certain that none are more eminently fitted to fill the minds of youth with admiration of the numerous contrivances and proofs of design afforded in every part of the creation, and to inspire them with exalted conceptions of the Supreme Being.”* We are * Quarterly Review, vol. xxxvi. p. 219. INTRODUCTION. By) of opinion, notwithstanding, that they ought to occu- py adistinct place in elementary education, because they possess many important recommendations, of which those mentioned are certainly not the least. The study of nature may be pursued in any degree, as a relaxation from other studies, as a pleasing occupation invigorating alike to the mind and the body, or as a science capable of calling into action the noblest faculties of man, and of affording employment to intellects of even a higher order than any of those whohave hitherto acquired distinction in the walks of literature. Natural history has already to boast of an Aristotle, a Ray, a Reaumur, a Linneus, a Hal- ler, a Hunter, and a Cuvier. What other science can rank abler men among its cultivators? And, as is remarked by one of the most eminent naturalists that this country has produced, the late president of the Linnean Society, ‘‘ How delightful and how consolatory it is, among the disappointments and anxieties of life, to observe science, like virtue, re- taining its relish to the last !” ARISTOTLE. SECTION I. Remarkable Events in the Life of Aristotle. Introductory Remarks—Birth and Parentage of Aristotle—He studies Philosophy under Plato—Is highly distinguished in the Academy—Retires to Atarneus on the Death of his Master— Marries—Is invited by Philip to superintend the Education of Alexander—Prosecutes his Studies at the Court—On the Sue- cession of Alexander, returns to Athens, where he sets up a School in the Lyceum—Corresponds with Alexander, who sup- plies Means for carrying on his Investigations—Alexander finds Fault with him for publishing some of his Works, and after put- ting Callisthenes to Death, exalts his Rival Xenocrates—On the Death of Alexander, he is accused by his Enemies of Impiety, when he escapes to Chalcis, where he dies soon after—His personal Appearance and Character— His 'Testament—History of his Writings—Great Extent of the Subjects treated of by him—His Notions on elementary Bodies—The Material Universe — The Changes to which the Earth has been subjected, and the Eternity of its Existence—Conclusion. Narurat History, considered as a science or body of doctrine, commenced with Aristotle, the founder of the Peripatetic School, and one of the most il- lustrious philosophers of antiquity. His writings were held in the highest estimation by his own countrymen the Greeks, as well as by the Romans: they were considered as the most authentic sources of knowledge, after the revival of learning in Eu- rope ; and even at the present day their influence may be traced in the works of many who have not ARISTOTLE. 39 so much as bestowed upon them a cursory glance. It is therefore fit that we should begin our biographi- cal sketches with that celebrated author, the more especially as he did not confine himself to a single branch of natural history, but, like all great minds, possessed an extensive acquaintance with objects of various classes. It is he only, whose comprehen- Sive glance seizes upon what is common to nume- rous tribes, that can duly estimate what ought to be considered as distinctive of a particular group, or can form rules for the arrangement and description of the beings which compose it. The three greatest naturalists whom the world has produced, Aristotle, Linneus, and Cuvier, were men whose conceptions were enlarged by the most expanded views. Others have excelled them in particular departments, but none have equalled them in general knowledge. Aristotle was born at Stagira, a city of the Thracian Chersonesus, in the first year of the 99th Olympiad, or the 384th before the Christian era. His father, Nicomachus, was physician to Amyn- tas, king of Macedonia, the father of Philip, and grandfather of Alexander the Great. Of his mo- ther, we only know that her name was Phestis, and that, like her husband, she was originally from Chalcis. His family claimed descent from Machaon, the son of Esculapius. Having lost his parents at an early age, he went to reside with Proxenus, a citizen of Atarneus in Mysia, the friend to whose guardianship he had been left. According to some authorities, not being observed very strictly by those who had the immediate charge of his educa- tion, he spent a great part of his youth in licentious indulgences, by which he dissipated nearly the whole 40) ARISTOTLE. of alarge patrimony. It is alsosaid that he entered into the military profession, but finding it disagree- able soon renounced it, and, as a means of subsist- ence, sold medicines at Athens. But most of these reflections on his juvenile character may perhaps be attributed to slander. However this may be, it became necessary for him to choose an employment ; and, on going to Delphi to consult the oracle, he was directed to proceed to Athens, and. apply himself to the study of philoso- phy. This he accordingly did, and at the age of seventeen commenced his career as a pupil of Plato. Being of an ardent temperament, he addicted himself to his new pursuit with so much energy, that he determined to reduce his hours of repose to the smallest possible limits. For this purpose he placed a metallic basin beside his couch, and on lying down held out one of his hands with an iron ball in it, that the noise produced by the collision might awake him should he happen to slumber. Such in- tensity of application, in a penetrating and subtile mind, could not fail to render him highly successful in his studies. We accordingly find that he had not been long in the academy when he was distinguish- ed above all the other scholars; and it is said that Plato used to call him the znd of his school, and to compare him to a spirited colt that required the application of the rein to restrain its ardour. He has been accused of disrespect and ingrati- tude to his aged master, and with having set up a school in opposition to him. The author of this charge was Aristoxenus, his own pupil ; but it is well known that he was personally an enemy to Aristotle, because that philosopher, in choosing a ARISTOTLE. 4] successor, had preferred Theophrastus. It is doubted, besides, whether he taught publicly until after Plato’s death, which happened in 348 B. c. Speusippus, the nephew of the sage just named, having been appointed to succeed him in his school, Aristotle, retiring from Athens, went to reside with Hermeias, governor of Assus and Atarneus in My- sia. Here he remained three years; but his friend having been executed, by command of Artaxerxes, as a rebel against Persia, he was obliged to seek refuge in Mytelene, taking with him Pythias, the kinswoman and adopted daughter of Hermeias, to whose memory he afterwards erected a statue in the temple of Delphos. This lady, endeared to him by the gratitude which he felt towards her father, and by the distress to which she had been reduced. by his death, he married in the thirty-seventh year of his age. She died, however, soon after their union, leaving an infant daughter, who received the same name. A short time having elapsed, he was invited by Philip to superintend the education of his son. This distinction he no doubt owed in part to his previous intimacy with the King of Macedonia ; but it must also have arisen from the great celebrity which he enjoyed, as excelling in all kinds of science, and especially in the doctrine of politics. Alexan- - der had attained the age of fifteen when the manage- ment of his studies was confided to Aristotle, then in his forty-second year. There is ground, however, for presuming that previous to this period the phi- losopher had been consulted respecting the instruc- tion of the young prince. The master, it has been said, was worthy of his 42 ARISTOTLE. pupil, and the pupil of his master. In our opinion the master was worthy of a better pupil, and the pupil might have had a better master. At all events, Alexander, who was ambitious of excelling in every pursuit, must have profited greatly in the acquisition of knowledge by the lessons of the most eminently-endowed philosopher of his age. Accord- ing to Plutarch and Aulus Gellius, he was instruct- ed by him in rhetoric, physics, ethics, and politics ; and so high was the estimation in which he held his preceptor, that he is said to have declared, that *“he was not less indebted to Aristotle than to his father; since if it was through the one that he lived, it was through the other that he lived well.” It is also supposed that he had been initiated in the abstruse speculations respecting the human soul, the nature of the Divinity, and other subjects, on which his master had not yet promulgated his no- tions to the world. During his residence at the court of Macedonia, Aristotle did not exclusively devote himself to his duties as instructor of the young prince, but also took some share in public business, and continued his philosophical researches. For the latter purpose Philip is said to have granted him liberal supplies of money. In consideration of his various merits the king also rebuilt his native city, Stagira, which had been destroyed in the wars, and restored it to its former inhabitants, who had either been dispersed or carried into slavery. Alexander had scarcely completed his twentieth year when the assassination of his father, by Pau- sanias, one of the officers of the guard, called him to the throne. Aristotle, however, continued to re- ARISTOTLE. 43 side at the court two years longer ; when some mis- understanding having arisen, he left the young monarch at the commencement of his celebrated ex- pedition into Asia, and returned to Athens. It has been alleged that he accompanied his former pu- pil as far as Egypt; but the fact is not certain, al- though circumstances would seem to render it probable. He was well received at Athens, on account of the benefits which Philip had conferred, for his sake, on the inhabitants of that city ; and, obtaining per- mission from the magistrates to occupy the Lyceum, a large enclosure in the suburbs, he proceeded to form a school. It was his custom to instruct his disciples while walking with them ; and for this reason the new sect received the name of Peripatetics, or walk- ing philosophers. In the morning he delivered his acroatic lectures to his select pupils, imparting to them the moreabstruse parts of metaphysical science ; and in the evening gave to his visiters or the pub- lic at large exoteric discourses, in which the subjects discussed were treated in a popular style. As the Lyceum soon acquired great celebrity, scholars flocked to it from all parts of Greece. Xenocrates, who shared with him the lessons of Plato, had by this time succeeded Speusippus in the Academy, and it has been alleged that Aristotle established his seminary in contemptuous opposition ; observing, that it would be shameful for him to be silent while the other taught publicly. But although the rival sages of those days cannot be supposed to have been influenced by a gentler spirit than animates those of our own times, there is no reason for attributing to the Stagirite in this matter any other motive than a 44 ARISTOTLE. laudable desire of seeking his own interest by com- municating knowledge to those who were desirous of receiving it. In this manner he gave public lectures at Athens thirteen years, during the greater part of which time he did not cease to correspond with Alexander. That celebrated prince had placed at his disposal several thousand persons, who were occupied in hunting, fishing, and making the observations which were necessary for completing his History of Animals. He is moreover said to have given the enormous sum of 800 talents for the same purpose; while he also took care to send to him a great variety of zoological specimens, collected in the countries which he had subdued. The misunderstanding which had begun before Aristotle parted from his royal pupil, but which had not prevented the good offices of the latter, increased. towards the end of his career. One of the first oc- casions seems to have been offered by the philoso- pher, who, having published his works on physics and metaphysics, received from Alexander, who was piqued at his having divulged to the world the va- luable knowledge which he had obtained from him in his youth, the following letter :— « Alexander to Aristotle, wishing all happiness. You have done amiss in publishing your books on the speculative sciences. In what shall I excel others if what you taught me privately be commu- nicated to all? You know well that I would rather surpass mankind in the more sublime branches of learning than in power. Farewell.” ARISTOTLE. 45 This epistle exhibits the king as a very exclusive personage ; and, joined to what history has recorded of his actions, tends to show that selfishness, how- ever refined or disguised, was the main source of his insatiable ambition. One of the sincerest plea- sures of a great mind is to communicate to others all the blessings that it possesses. On other occasions he appeared to entertain a wish to mortify the philo- sopher by exalting his rival Xenocrates, who had nothing to recommend him besides a respectable moral character. It has even been asserted by some, that the conqueror, after he had put Callisthenes to death, intended the same fate for Aristotle. This Callisthenes was a kinsman and disciple of the other, through whose influence, it is said, he was appointed to attend the king on his Asiatic ex- pedition. His republican sentiments and independ- ent spirit, however, rendered him an indifferent cour- tier ; while his rude and ill-timed reflections finally converted him into an object of suspicion or dislike. The conspiracy of Hermolaus affording Alexander a plausible pretext for getting rid of his uncourtly monitor, he caused him to be apprehended and put to death. Some say that he was exposed to lions, others that he was tortured and crucified ; but, in whatever way he met his end, it is generally agreed that his life was sacrificed to gratify the enmity of his sovereign. Aristotle naturally espoused the cause of his relative, and from that period harboured a deep resentment against his destroyer. It has even been alleged that he was privy to the supposed de- sign of murdering the victorious prince ; but of this there is no satisfactory evidence. Notwithstanding the coolness which thus existed 46 ARISTOTLE. between ‘ Macedonia’s madman” and “ the Stagi- rite,” the latter continued to enjoy at least an ap- pearance of protection, which prevented his enemies from seriously molesting him. But as the splen- dour of his talents, his success in teaching, and the celebrity which he had acquired in all parts of Greece, had excited the animosity of those who found themselves eclipsed by the brightness of his genius, no sooner was Alexander dead, than they stirred up a priest, named Eurymedon, with whom was asso- ciated Demophilus, a powerful citizen, to prefer a charge of impiety against him before the court of Areopagus, on the ground that he had commemorat- ed the virtues of his wife and of his friend Hermeias with such honours as were exclusively bestowed on the gods. Warned by the fate of Socrates under similar circumstances, he judged it prudent to re- tire ; remarking, that he wished to spare the Athe- nians the disgrace of committing another act of in- justice against philosophy. He effected his escape, with a few friends, to Chalcis in Euboea, where he died soon after, in the year 322 s.c., and the 63d of his age ; having, on his deathbed, appointed Theophrastus of Lesbos, one of his favourite pupils, his successor at the Ly- ceum. Various accounts are given of his demise ; but it is probable that an overexcited mind, and a body worn out by disease, were the real causes of his dissolution. According to Procopius and others, Aristotle drowned himself in the Eubcean Euripus, because he could not discover the cause of its ebbing and flowing, which are said to take place seven times a-day. Sir Thomas Browne, in his Enquiries into Vulgar and ARISTOTLE. 47 Common Errors, refutes this assertion on the follow- ing grounds :—In the first place, his death is related to have taken place in two ways by Diogenes Laer- tius; the one, from Eumolus and Phavorinus, that being accused of impiety for composing a hymn to his friend Hermeias, he withdrew to Chalcis, where he drank poison ; the other, by Apollodorus, that he died of a disease in his stomach, in his sixty-third year. Again, the thing is in itself unreasonable, and therefore improbable; for Aristotle was not so apt to be vexed by the difficulty of accounting for natural phenomena, nor is there any evidence that he endeavoured to discover the ebb and flow of the Euripus, for he has made no mention of it in his works. Lastly, the phenomenon itself is disputable ; and it appears from a comparison of testimonies on the subject, that the stream in ques- tion flows and ebbs only four times a-day, as is the case with other parts of the sea, though it is sub- ject to irregularities dependent upon the winds and other causes. ‘‘ However, therefore, Aris- totle died,” concludes our author, “ what was his end, or upon what occasion, although it be not al- together assured, yet that his memory and worthy name shall live, no man will deny, nor gratefull schollar doubt: and if, according to the Elogie of Solon, a man may be onely said to be happy after he is dead, and ceaseth to be in the visible capacity of beatitude: or if, according unto his own Ethicks, sence is not essentiall unto felicity, but a man may be happy without the apprehension thereof; surely in that sence he is pyramidally happy, nor can he ever perish but in the Euripe of ignorance, or till the torrent of barbarisme overwhelme all.” 48 ARISTOTLE. With respect to personal appearance, Aristotle was not highly favoured. He was of short stature, with slender legs, and remarkably small eyes. His voice was shrill, and his utterance hesitating. Although his constitution was feeble, he seems to have enjoyed good health. His moral character has been im- peached by some ; but we may presume that it was not liable to any serious imputation, otherwise his faults would not have escaped the observation of his numerous enemies, who yet could only prefer against him some vague charges of impiety. Aristotle was not merely a philosopher ; he was also what would at the present day be called a gentle- man and aman of the world. In accordance with this character he dressed magnificently, wore rings of great value, shaved his head and face, contrary to the practice of the other scholars of Plato, and freely indulged in social intercourse. He was twice mar- ried. By his first wife, Pythias, he had a daughter of the same name, who was married to Nicanor, the son of Proxenus. His second wife was Herpy- lis, a native of Stagira, by whom he had a son, called Nicomachus. It is difficult to determine his real character. Those who seem to find pleasure in reviling him, assert that he was a parasite, a habitual glutton and drunkard, a despiser of the gods, a vain person, whose chief care was to ornament his person, and thereby counteract the unfavourable impression which his disproportioned figure might make. It has been said, with perhaps more truth, that he taught his pupil Alexander principles of morals and policy which were not the best adapted for a prince of his ambitious temper; and that his desire of standing 9 at ARISTOTLE. 49 forth as the founder of a philosophical sect, induced him to prefer abstract disquisitions to solid know- ledge, and to indulge in a spirit of contradiction and innovation. On the other hand, he has been ex- tolled as a prodigy of knowledge and intellect, and represented as “ the secretary of nature.” Jews have laid claim to his philosophy as derived from Solomon, and Christians have held him up as a per- son ordained to prepare the way for a Divine revela- tion. It is certain, however, that he was a very re- markable individual, possessed of great powers of observation and discrimination, and one who, had he devoted himself to the study of natural objects with a sincere desire of ascertaining their proper- ties and a resolution to adhere to truth, might have succeeded in laying on a solid basis the found- ations of physical science. Diogenes of Laertes in Cilicia, who lived about the end of the second century, and who wrote an account of the lives of the philosophers, has pre- served his testament, the substance of which is as follows :—Antipater, the regent of Macedonia, is appointed his executor. To his wife Herpylis he leaves the choice of two houses, the one in Chalcis, the other at Stagira. He commends her domestic virtues, and requests his friends to distinguish her by the kindest attention. To Nicomachus, his son by Herpylis, and to Pythias, his daughter by his first wife, he bequeaths the remainder of his fortune, excepting his library and writings, which he leaves to Theophrastus. He desires that his daughter shall be given in marriage to Nicanor, the son of his benefactor Proxenus, or, should he not be inclined to receive her, to Theophrastus, his es- c 50 ARISTOTLE. teemed pupil. The bones of Pythias he orders to be disinterred and buried with his own body, as she herself had desired. None of his slaves are to be sold ; they are all either emancipated by his will, or ordered to be set free by his heirs whenever they shall become worthy of liberty. Finally, he orders that the dedications which he had vowed for the safety of Nicanor be presented at Stagira to Jupi- ter and Minerva. The same writer gives the titles of 260 works of Aristotle. Many of these, however, have perished. From his situation in society, and the munificent patronage of Alexander, he possessed more ample resources than any other man of science that could be named ; and, considering the age in which he lived, his success in the investigation of nature may be considered as almost unrivalled. It is to be re- gretted that so many of his treatises have been lost, and that even those which have been transmitted to us have not been preserved in a perfect state. Strabo has given a melancholy history of these works, in the ninth book of his geography. Aris- totle, as we have stated above, had bequeathed them to Theophrastus, the most distinguished of his pupils, and his successor in the school. That philosopher left them, together with his own works, to his scholar Neleus, who carried them to his native city, Scepsis in Asia Minor. The heirs of Neleus, who were unlettered men, kept them locked up; and when they understood that the King of Pergamos, to whom the town belonged, was collect- ing books, to forma library on the plan of the Alex- andrian, they concealed them in a vault or cellar, where they lay forgotten 130 years. When acci- ARISTOTLE. 5) dentally discovered, at the end of that period, they were found to be greatly injured by damp and ver- min. At length they were sold to an inhabitant of Athens, named Apellicon, who, however, was not so much a lover of philosophy as a collector of manuscripts, and who adulterated the original text by his injudicious emendations and interpolations. Several copies thus altered were published by him. When Athens was taken by Sylla, the library of this citizen was carried to Rome, where the works of Aristotle were corrected by Tyrannion, a gram- marian. Andronicus of Rhodes afterwards arranged the whole into sections, and gave them to the world. According to Dr Gillies, Aristotle must have “composed above 400 different treatises, of which only forty-eight have been transmitted to the pre- sent age. But many of these last consist of several books ; and the whole of his remains together still form a golden stream of Greek erudition, exceeding four times the collective bulk of the Iliad and Odyssey.” He was scarcely less ambitious than his pupil Alexander, and his works embrace nearly the whole range of human knowledge as it existed in his day. He was the inventor of the syllogistic mode of rea- soning, the principles of which he lays down in his work on logic. In his books on rhetoric, he has in- vestigated the principles of eloquence with great accuracy and precision, insomuch that they form the basis of all that has since been written on the subject. His work on poetics, or rather the frag- ment which has come down to us under that name, although almost entirely confined to the considera- tion of the drama, contains principles applicable to 2 ARISTOTLE. oT poetical composition in general, and is equally distin- guished for precision and depth of thought. Those on ethics and politics are also remarkable produc- tions ; and although the former has been effectually superseded by a more perfect system, the latter con- tains much that is interesting even at the present day. In his metaphysics, he expounds the doctrine of Be- ing abstracted from Matter, and speaks of a First Mover,—the life and intellect of the universe, eter- nal and immutable, but neither omnipresent nor omnipotent. When treating of physics, he does not in general lay down rules a prvorz, but deduces them from the observation and comparison of facts. This being the case, we might expect that such of his writings as relate to natural history should contain much truth. He holds that all terrestrial bodies are composed of four elements,—earth, water, air, and fire. Earth and water are heavy, because they tend towards the earth’s centre; while air and fire, which tend up- wards, are light. Besides these four elements, he has admitted a fifth, of which the celestial objects were composed, and whose motion is always circular. He supposed that there is above the air, under the concave part of the moon, a sphere of fire to which all the flames ascend, as the brooks and rivers flow into the ocean. He maintains that matter is infinitely divisible ; that the universe is full, and that there is no vacuum in nature ; that the world is eternal ; that the sun, which has always revolved as it does at present, will for ever continue to do so; and finally, that the ge- nerations of men succeed each other without having had a beginning or foreseeing an end. ARISTOTLE. 53 He alleges that the heavens are incapable of decay ; and that although sublunar things are subject to corruption, their parts nevertheless do not perish ; that they only change place ; that from the remains of one thing another is made; and that thus the mass of the world always remains entire. He holds that the earth is in the centre of the world ; and that the First Being makes the skies revolve round the earth, by intelligences which are continually cccu- pied with these motions. He asserts that all of the globe which is now covered by the waters of the sea was formerly dry land ; and that what is now dry land will be again converted into water. The reason is this: the rivers and tor- rents are continually carrying along sand and earth, which causes the shores gradually to advance, and the sea gradually to retire; so that in the course of innumerable ages the alleged vicissitudes necessarily take place. He adds, that in several parts which are considerably inland, and even of great elevation, the sea, when retiring, left shells, and that, on dig- ging in the ground, anchors and fragments of ships are sometimes found. Ovid attributes the same opinion to Pythagoras. Aristotle farther remarks, that these conversions of sea into land, and of land into sea, which gradually take place in the long lapse of ages, are in a great measure the cause of our ignorance of past occur- rences. He adds, that besides this other accidents happen, which give rise even to the loss of the arts ; and among these he enumerates pestilences, wars, famines, earthquakes, burnings, and desolations, which exterminate all the inhabitants of a coun- try, excepting a few who escape and save them- 4 ARISTOTLE. qn selves in the deserts, where they lead a savage life, and where they give origin to others, who in the progress of time cultivate the ground, and invent or rediscover the arts; and that the same opinions recur, and have been renewed times with- out number. In this manner, he maintains that, notwithstanding these vicissitudes and revolutions, the machine of the world always remains indestruc- tible. If an apology were necessary for the brevity of the above sketch, it might be urged, that it probably contains all that is authentic respecting the life of this eminent philosopher; and that our object is to condense, not to expand ; to direct the attention to characteristic features, not to lead the mind to expatiate vaguely upon the general surface. ARISTOTLE. 55 SECTION II. Account of Aristotle's History of Animals. Aristotle’s Ideas respecting the Soul—His Views of Anatomy and Physiology—Introduction to his History of Animals, consisting of Aphorisms or general Principles—His Division of Animals ; their external Parts ; their Arrangement into Families ; their in- ternal Organs ; Generation, &c. OF all the sciences, it has been remarked, that which owes most to Aristotle is the natural history of ani- mals. Not only was he acquainted with numerous species, he also described them according to a com- prehensive and luminous method, whieh perhaps none of his successors have approached ; arrang- ing the facts observed, not according to the species, but according to the organs and functions, which affords the only means of establishing comparative results. It may in fact be said, that besides being the oldest author on comparative anatomy whose writings we possess, he was likewise one of those who have treated that part of natural history with most genius, and best deserves to be taken as a model. The principal divisions which are still adopt- ed by naturalists in the animal kingdom are those of Aristotle, and he proposed some which have been resumed after having been unjustly rejected. If we examine the foundation of these great labours, we shall find that they all reston the same method, 56 ARISTOTLE. which is itself derived from the theory respecting the origin of general ideas. He always observes facts with attention, compares them with great precision, and endeavours to discover the circumstances in which they agree. His style, moreover, is suited to his method: simple, precise, unstudied, and calm, it seems in every respect the reverse of Plato’s ; but it has also the merit of being generally clear, except in some places where his ideas themselves were not so.* In one of his treatises, Aristotle divides na- tural bodies into those possessing life, and those destitute of that principle,—into animate and in- animate. He considers soul as the vital energy or vivifying principle common to all organized bodies ; but distinguishes in it three species. Thus, in plants there is a vegetative, in animals a vegetative and a sentient, in man a vegetative, a sentient, and a rational soul. The functions of nutrition and ge- neration in plants and animals he attributes to the vegetative soul; sense, voluntary motion, appetite, and passion, to the sentient soul; the exercise of the intellectual faculties, to the rational soul. His ideas of anatomy and physiology were ex- tremely imperfect. Thus, he supposed the brain to be a cold spongy mass, adapted for collecting and exhaling the superfluous moisture, and intended for aiding the lungs and trachea in regulating the heat of the body. The heart is the seat of the vital fire, the fountain of the blood, the organ of motion, sen- sation, and nutrition, as well as of the passions, and the origin of the veins and nerves. The blood is confined to the veins; while the arteries contain * Biographie Universelle. ARISTOTLE. oF an aérial spirit; and by nerves he means tendons, nerves, and arteries,—in short, strings of all kinds, as the name implies. The heart has three cavities ; in the larger animals it communicates with the windpipe, or the ramifications of the pulmonary artery receive the breath in the lungs and carry it to the heart. Respiration is performed by the ex- pansion of the air in the lungs, by means of the in- ternal fire, and the subsequent irruption of the ex- ternal air to prevent a vacuum. Digestion is a kind of concoction or boiling, performed in the stomach, assisted by the heat of the neighbouring viscera. It is perhaps impossible at the present day, when the investigation of nature is so much facilitated by the accumulated knowledge of ages in every depart- ment of physical science, by the commercial rela- tions existing between countries in all parts of the globe, by a tried method of observation, experiment, and induction, and finally, by the possession of the most ingenious instruments, to form any adequate idea of the numerous difficulties under which the ancient naturalist laboured. On the other hand, he had this great advantage, that almost every thing was new; that the most simple observation correctly recorded, the most trivial phenomenon truly interpreted, became as it were his inalienable property, and was handed down to succeeding ages as a proof of his talents,—a circumstance which must have supplied a great motive to exertion. The History of Animals is undoubtedly one of the most remarkable performances of which phy- sical science can boast. It must not, however, be imagined that it is a work which, replete with truth and exhibiting the well-arranged results of accurate 58 ARISTOTLE. observation and laborious investigation, is calculat- ed to afford material aid to the modern student. To him more recent productions are the only safe guides; nor is it until he has studied them, and interrogated nature for himself, that he can derive benefit from the perusal of the treatise which we now proceed to examine. The first book contains a brief description of the parts of which the bodies of animals are composed. The introduction consists of general propositions ; of which we shall present a few of the more remark- able as a specimen. Some parts, he observes, are simple, and divided into similar particles ; while others are compound, and consist of dissimilar elements. The same parts in different animals vary in form, proportion, and other qualities ; and there are many creatures which, although they have the same parts, have them in different situations. Animals differ in their mode of living, actions, and manners: thus, some reside on land, others in water; and of the latter some breathe water, others air, and some neither. Of aquatic animals, some inhabit the sea, others the rivers, lakes, or marshes. Of those which live in the sea, some are pelagic, others littoral, and others inhabit rocks. Of land-animals, some respire air, as man ; others, although they live on the land and obtain their food there, do not breathe air, as wasps, bees, and other insects. We know no animal, says he, that flies only, as the fish swims ; for those which have membranous wings walk also; and bats have feet, as have seals, al- though imperfect. But some birds have the feet weak ; in which case the defect is compensated by ARISTOTLE. 59 the superior action of the wings, as in swallows. There are many species which both walk and swim. Animals also differ in their habits ; thus, some are gregarious, others solitary,—a distinction applicable to them whether they walk, fiy, or swim. Some obey a leader, others act independently ; cranes and bees are of the former, ants of the latter kind. Some feed on flesh, others on fruits, while others feed indiscriminately ; some have homes, others use no covering of this kind, but reside in the open air. Some burrow, as lizards and snakes ; others, as the horse and the dog, live above ground. Some animals seek their food at night, others by day; some are tame, others wild; some utter sounds, others are mute, and some sing; all of them, however, sing or cry in some way at the sea- son of pairing. In this way he proceeds, stating briefly the va- rious circumstances in which animals differ from each other, and in conclusion asserting that man is the only one capable of design; for, says he, al- though many of them have memory and docility, none but man have the faculty of reflection. These general propositions or aphorisms are not so simple or so easily attained as one might imagine on reading them inattentively. Let any person who has a tolerably comprehensive idea of the series of animated beings reflect a little, and he will per- ceive, that such as the following must be derived from the observation of a great number of facts :— Those parts which seize the food, and into which it is received, are found in all animals. The sense of touch is the only one common toall. Every living creature has a humour, blood or sanies, the loss of 60 ARISTOTLE. which produces death. Every species that has wings has also feet. In this chapter Aristotle divides animals into such as have blood, and such as have it not. Of the former (the red-blooded) some want feet, others have two of these organs, and others four. Of the latter (the white-blooded) many have more than four feet. Of the swimming-animals, which are destitute of feet, some have fins, which are two or four; others none. Of the cartilaginous class, those which are flat have no fins, as the skate. Some of them have feet, as the mollusca. Those which have a hard leathery covering swim with their tail. Again, some animals are viviparous, others produce eggs, some worms. Man, the horse, the seal, and other land-animals, bring forth their young alive ; as do the cetacea and sharks. Those which have blow-holes have no gills, as the dolphin and whale. In this department, the observations of the great philosopher are often minute, and generally accurate, although usually too aphoristic and unconnected to be of much use to the student. Of flying-animals, some, as the eagle and hawk, have wings ; others, in place of wings, have mem- branes, as the bee and the beetle ; others a leathery expansion, as the bat. Those which have feathered or leathery wings are blooded (red-blooded) ; but those which have membranous wings, as insects, are bloodless (white-blooded). Those which fly with Wings or with leathery expansions, either have two feet or none; for, says he, it is reported that there are serpents of this kind in Ethiopia. Of the flying bloodless animals, some have their wings covered by a sheath, as beetles; others have no covering, ARISTOTLE. 61 and of these some have two, others four wings. Those which are of large size, or bear a sting be- hind, have four ; but the smaller and stingless, two only. Those which have sheaths to their wings, have no sting; but those which have two wings are furnished with a sting in their fore part, as the gnat. Animals are distinguished from each other, so as to form kinds or families. These, according to our author, are quadrupeds, birds, fishes, cetacea, all which he says have (red) blood. There is another kind, covered with a shell, such as the oyster; and another, protected by a softer shell, such as the crab. Another kind is that of the mollusca, such as the euttle-fish ; and lastly, the family of insects. All these are destitute of (red) blood. Here, then, we have a general classification of animals, which it is important to notice, as we may have occasion afterwards to compare it with ar- rangements proposed by other naturalists. It may be reduced to the following form :— Red-blooded Animals. QUADRUPEDS, SERPENTS, BirDs, FISHES, CETACEA. White-blooded Animals. TESTACEA, CRUSTACEA, Mouuusca, INSECTS. It must, however, be understood, that Aristotle proposes no formal distribution of animals, and that his ideas respecting families, groups, or genera, such as those of our present naturalists, are extremely vague. His quadrupeds include the mammalia and the quadrupedal reptiles. He divides them into those which are viviparous, and those which are ovipa- rous; the former covered with hair, the latter with 7 62 ARISTOTLE. scales. Serpents are also scaly, and, excepting the Viper, oviparous. Yet all viviparous animals are not hairy ; for some fishes, he remarks, likewise bring forth their young alive. In the great family of vivipa- rous quadrupeds also, he says, there are many spe- cies (or genera), as man, the lion, the stag, and the dog. He then mentions, as an example of a natural genus, those which have a mane, as the horse, the ass, the mule, and the wild-ass of Syria, which are severally distinct species, but together constitute a genus or family. This introduction to the History of Animals the philosopher seems to have intended, less as a sum- mary of his general views respecting their organiza- tion and habits, than as a popular exordium, cal- culated to engage the attention of the reader, and excite him to the study of nature. Whatever errors it may contain, and however much it may be defi- cient in strictly methodical arrangement, it is yet obviously the result of extensive, and frequently ac- curate observation. He then proceeds to the de- scription of the different parts of the human body, first treating of what anatomists call the great re- gions, and the exterior generally, and then passing to the internal organization. His descriptions in general are vague, and often incorrect. As an ex- ample, we may translate the passage that refers to the ear. This organ, he says, is that part of the head by which we hear; but we do not respire by it, for Alemeon’s opinion, that goats respire by the ears, is incorrect. One part of it has no name, the other is called lobos ; it consists entirely of cartilage and flesh. The internal region is like a spiral shell, resembling ARISTOTLE. 63 an auricle at the extremity of the bone, into which as into a vessel the sound passes. Nor is there any passage from it to the brain, but to the palate ; and a vein stretches from the brain to it. But the eyes belong to the brain, and each is placed upon a small vein. Every animal that has ears moves them, ex- cepting man ; for of those which are furnished with the sense of hearing, some have ears, others none, but an open passage; of which kind are feather- ed animals, and all that are covered with a scaly skin. But those which are viviparous, the seal, the dolphin, and other cetacea excepted, have exter- nal ears, as well as the viviparous cartilaginous ani- mals. The seal has a manifest passage for hearing ; but the dolphin, although it hears, yet has no ears. The ears are situated at the same level as the eyes, but not higher, as in certain quadrupeds. The ears of some persons are smooth, of others rough, or partly so; but this furnishes no indication of disposition. They are also large, small, or of moderate size, pro- jecting, or flat, or intermediate. The latter circum- stance indicates the best disposition. Large and projecting ears are indicative of a fool and babbler. From this passage we perceive that Aristotle was acquainted with the Eustachian tube; although his anatomical knowledge of the ear is certainly of the most superficial kind, and his physiognomical notions respecting it sufficiently ludicrous. He di- vides the body into head, neck, trunk, arms, and legs, much as we do at the present day. The head consists of the calvaria, or part covered with hair, which is divided into three regions, the bregma or fore part, the crown, and the occiput. Under the bregma is the brain; but the back part of the 64 ARISTOTLE. head is empty. When speaking of the face, he remarks, that persons having a large forehead are of slow intellect, that smallness of that part indicates fickleness, great breadth stupidity, and roundness irascibility. The physiognomists of our day have a different opinion. The neck contains the spine, the gullet, and the arteria (or windpipe). The trunk consists of the breast, the belly, &c. ;—and in this manner he passes over the different external regions. In describing the brain, he states that all red- blooded animals have that organ, as have also the mollusca, and that in man it is largest and most humid. He had observed its two membranes, as well as the hemispheres and cerebellum ; but he as- serts that it is bloodless, that no veins exist in it, and that it is naturally cold to the touch. He was ignorant of the distribution of the nerves, was not aware that the arteries contain blood, imagined that the heart being connected with the windpipe is in- flated through it, and, in a word, manifests extreme ignorance of every thing that relates to the internal organization. Judging from this specimen, the reader may sus- pect that his time would not be profitably employed in separating the few particles of wheat from the great mass of chaff which the writings of Aristotle present to us. Nor must it be concealed that the modern naturalist does not consult his volumes for information, but merely to gratify curiosity. There is to be found, indeed, in the most imperfect of our elementary works on anatomy, whether human or comparative, more knowledge than was probably contained in the Alexandrian library. In his second book, he treats more particularly of ARISTOTLE. 65 animals. At its commencement we unfortunately meet with a stumbling-block, in the shape of an as- sertion, that the neck of the lion has no vertebre, but consists of a single bone. In speaking of limbs, he takes occasion to describe the proboscis of the elephant, and to enter generally into the history of that gigantic quadruped. He then speaks with re- ference to the distribution of hair, remarking, that the hair of the human head is longer than that of any other animal ; that some are covered all over with long hair, as the bear ; others on the neck only, as the lion; and others only along the back of the neck, as the horse and the bonasus. He describes the buffalo and the camel; of the latter of which he mentions the two species, the Arabian and the Bactrian. The subject of claws, hoofs, and horns, is next discussed. He states that some quadrupeds have many toes, as the lion ; while others have the foot divided into two, as the sheep; and others again have a single toe or hoof, as the horse. His aphorisms on the subject of horns are in general. correct. Thus, he states that most creatures fur- nished with them have cloven hoofs, and that ne single-hoofed animal has two horns. He then proceeds to speak of teeth, which he says are possessed by all viviparous quadrupeds. Some have them in both jaws, others not ; for horned ani- mals have teeth in the lower jaw only, the front ones being wanting in the upper. Yet all animals which have no teeth above are not horned ; the camel, for example. Some have projecting teeth, as the boar ; others not. In some they are jagged, as in the lion, panther, and dog ; in others even, as in the horse and cow. No animal has horns and protruded D 66 ARISTOTLE. teeth ; nor is there any having jagged teeth that has either horns or projecting teeth. The greater part have the front teeth sharp, and those behind broad; but the seal has them all jagged, for it par- takes of the nature of fishes, which have that pecu- liarity. His remarks on the shedding of the teeth are in general erroneous. The elephant, he says, has four grinders, together with two others, the latter of which are of great size and bent upwards in the male, but small and directed the contrary way in the female. This circumstance Cuvier states to be correct with respect to the African variety, al- though the case is different in the Asiatic. His ac- count of the hippopotamus, however, is inaccurate in almost every particular. Thus, he says it has a mane like a horse, cloven feet like an ox, and is of the size of an ass,—a description which answers bet- ter to the gnu. In speaking of monkeys, of which he mentions several kinds, he remarks their resem- blance to the human species, and the peculiar forma- tion of their hind feet, which may be used as hands. He then gives a general account of the oviparous quadrupeds, particularly of the Egyptian crocodile and the chameleon, concerning which he relates many interesting circumstances. In treating of birds, he remarks that they are bipedal, like man, destitute of anterior limbs, but furnished with wings, and having a peculiar forma- tion in the legs. Those birds which have hooked claws, he says, have the breast more robust than others. He then describes the differences in the structure of their feet ; remarking, that most of them have three toes before and one behind, although a few, as the wryneck, have two only before. Birds, ARISTOTLE. 67 he adds, have the place of lips and teeth supplied by a bill; and instead of external ears and nostrils properly so called, they have passages for hearing and smelling indifferent parts of the head. The eyes have no lashes, but are furnished with a membrane like lizards. The other remarkable peculiarities, such as the feathers and the form of the tongue, are then mentioned. No birds, he observes, that have hooked claws are furnished with spurs. In his re- marks on this family he is generally correct ; though here, as elsewhere, he is not merely brief, but vague and superficial. His division of birds would seem to be the following :—Those with hooked claws ; those with separated toes; and such as are web-footed. Fishes are next discussed with nearly equal bre- vity. Heremarks, that they have a peculiar elongated form, are destitute of mamme, emit by their gills the water received at the mouth, swim by means of fins, are generally covered with scales, and are destitute of the organs of hearing and smelling. His description of the internal parts of these tribes of animals contains a mixture of truth and error. This book terminates with remarks on the structure of serpents. The third commences with observations on those parts of animals which are homogeneous, such as the blood, the fibres, the veins, the nerves, and the hair. Under the general title of nerve, he confounds the columne carnee of the heart, the tendons and fascie ; and it does not appear that he had any idea of what modern anatomists call nerves. In speak- ing of hair, he remarks that it grows in sick per- sons, especially those labouring under consumption, in old people, and even in dead bodies. The same 68 ARISTOTLE. remark applies to the nails. The blood is contained in the veins and heart, is, like the brain, insensible, flows from a wound in any part of the flesh, has a sweet taste and a red colour, coagulates in the air, palpitates in the veins, and when vitiated is pro- ductive of disease. On the subject of milk, his ob- servations deserve attention. ‘Thus, he says that all viviparous animals which have hair are furnish- ed with mamme, as are also the whale and the dolphin ; but those which are oviparous are not so provided. All milk has a watery fluid, called se- rum, and a thick part, called cheese; while that produced by animals which are destitute of fore teeth in the upper jaw coagulates. On this subject he mentions some curious circumstances. Some kinds of food occasion the appearance of a little milk in women who are not pregnant. There have even been instances of it flowing from the breasts of elderly females. The shepherds about Mount Cita rub the udders of unimpregnated goats with nettles, and thus obtain abundance of milk from them. It sometimes happens that male animals secrete the same fluid ; thus, there was a he-goat in the island of Lemnos, which yielded so much that small cheeses were made of it. A little may be pressed from the breasts of some men after the age of pu- berty; and there have been individuals who on being sucked have yielded a large quantity. In- stances of this have been recorded by other observ- ers ; and Humboldt met with a similar case in South America.* In the fourth book, Aristotle treats of the animals * See Edinburgh Cabinet Library, No. X. Travels and Re- searches of Alexander Von Humboldt, p. 91. ARISTOTLE. 69 which are destitute of red blood. Of these, he says there are several genera: the mollusca, such as the cuttlefish, which is externally soft with an internal firm part ; the crustacea, internally soft and covered with a firm integument, such as the crab ; the testa- cea, internally soft and externally hard and solid, as the limpet and oyster. The insects form the fourth genus; and are distinguished by their being external- ly and internally formed of a hardish or cartilaginous substance, and divided into segments ; some of them having wings, as the wasp ; while others have none, as the centipede. He then gives a pretty full ac- count of the cuttlefish and nautilus, treats of the crustaceous animals generally, and enters into de- tails respecting the other two classes. After this he enumerates the organs of sensation, stating that man, and all the red-blooded and viviparous animals, possess five senses, although in the mole vision is deficient. He describes correctly the eye of that crea- ture, showing that it is covered by a thickish skin, but presents a conformation similar to that of other animals, and is furnished with a nerve from the brain. He shows that although fishes have no visi- ble organs of smelling or hearing, they yet possess both senses, and, in treating of this subject, states many interesting facts relative to the mode em- ployed in catching dolphins. He also shows that insects have the faculty of hearing and smelling. The testacea, he says, besides feeling, which is com- mon to all animals, have smell and taste; but he also asserts that some of them, the solen and pecten, are capable of seeing, and others of hearing. All viviparous quadrupeds not only sleep, but also dream ; but whether the oviparous dream is uncer- 70 ARISTOTLE. tain; although it is plain that they sleep, as do the aquatic animals, fishes, mollusca, testacea, and crus- tacea. A transition is then made to the subject of sex, for the purpose of showing that in the mollusca, crustacea, testacea, and eels, there is no difference in that respect between individuals of the same species. The subjects of generation and parturition occupy the fifth, sixth, and seventh books. From the com- paratively large space which he has devoted to the result of his inquiries in these departments, the minuteness with which he describes the phenomena presented by them in man and the domestic ani- mals, and the accurate knowledge which he fre- quently exhibits, it may be inferred that they were favourite subjects with Aristotle. It is sufficient for our purpose to mention some of the cases in which he attained the truth, and others in which he failed. He describes the membranes with which some of the mollusca envelope their eggs, mentions the changes through which insects pass before they ac- quire the perfect state, and speaks with tolerable ac- curacy of the economy of bees and wasps. He states, however, that the former make wax from flowers, but gather their honey from a substance which falls from the air upon trees. ‘The eggs of tortoises, he says, are hard, like those of birds, and are deposited in the ground. His remarks on those of lizards and the crocodile are also correct. He states accurately that some serpents bring forth their young enclosed in a soft membrane, which they afterwards burst ; but that sometimes the little animals escape from the egg internally, and are produced free. Other ser- pents, he observes, bring forth eggs cohering in the ARISTOTLE. 71 form of a necklace. On the eggs of birds his obser- vations are nearly as correct as those which we find in books at the present day. He was acquainted with their general structure, and the develop- ment of the chick, which he minutely describes. He remarks of the cuckoo, that it is not a changed hawk, as some have asserted ; that, although cer- tain persons have alleged that its young have never been seen, it yet certainly has young; that, how- ever, it does not construct a nest, but deposites its eggs in the nest of other birds, after eating those which it finds there. He remarks that the cartilaginous fishes are viviparous, but that the other species bring forth eggs, and states correctly that they have no alantoid membrane. He then passes to the cetacea, with which he seems to be nearly as well acquainted as modern naturalists, and reverts to the oviparous fishes, respecting which he presents numerous de- tails. He maintains, however, that the eel is pro- duced spontaneously, and that no person had ever detected eggs or milt in it. Having discussed the subject of generation, he proceeds, in the eighth book, to treat of the food and actions of animals, their migrations, and other circumstances. ‘The ninth consists of a multitude of topics without any direct relation to each other, but apparently treated as they had_ successively presented themselves to the author. ‘Thus, at the commencement we find remarks on the peculiarities of disposition observed in the males and females of different animals, the combats of hostile species, the actions of animals, nidification, generation, and other matters. Several species of different classes 72 ARISTOTLE. are then described, such as the kingfisher, the black- bird, the cuckoo, the marten, eagles, owls, fishes, insects, and quadrupeds. The fragments which remain of Aristotle's His- tory of Animals may, perhaps, be considered as presenting the general views which he had intended to precede his more particular descriptions; but, regarded even in this light, it cannot be denied that they are extremely deficient in method. There is inthem no approach to a regular classification, we do not say of animals, but of subjects to be discuss- ed. He is continually making abrupt transitions, seems to lose sight of the object more immediately in view, to indulge in digressions foreign to it, and frequently repeats a circumstance which he had related before. His work resembles the rude notes which an author makes previous to the final arrangement of his book; and such it may possi- bly have been. Of descriptions, properly so called, there are few,—those of the elephant, the camel, the bonasus, the crocodile, the chameleon, the cuckoo, the cuttlefish, and a few others, being all that we find. It may appear strange, that the statements of naturalists should so frequently prove incorrect. In how many works, even of the present day, are er- rors to be discovered, which might have been avoid- ed by a proper use of the organs of vision, and a re- solution to take nothing on trust! But it is much easier to employ the imperfect remarks of others, to collect from books, compare and arrange, than to seek or make opportunities of observation for one’s self ; and of so little consequence do some men hold the actual inspection of natural objects, that, ies, ARISTOTLE. 73 without practising it to any extent, they neverthe- less arrogate to themselves the title of philosophical inquirers. In fine, the observations of Aristotle, consider- ing the period at which he lived, and the prone- ness of the human intellect to wander from the true path, are remarkable for the great proportion of truth which they present to us. Whatever may be their actual merits, they are certainly superior to those of any other naturalist whose works have come down to us from the remote ages of classical antiquity ; and we may take leave of this distinguished man by observing, in the words of Dr Barclay, that, “‘ notwithstanding his many imperfections, he did much both for anatomy and natural history, and more, perhaps, than any other of the human spe- cies, excepting such as a Haller or Linneus, could have accomplished in similar circumstances.” The best edition of his History of Animals (Il