Systema Naturae

“ While Linnæus first pronounced upon the fixity of species, it is interesting to note that his extended observations upon nature led him to see that variation among animals and plants is common and extensive, and accordingly in the later editions of his Systema Naturæ we find him receding from the position that species are fixed and constant. ”

“ It was time, indeed, that some new theological theory be evolved; the great Linnaeus himself, in spite of his famous declaration favouring the fixity of species, had dealt a death-blow to the old theory. In his Systema Naturae, published in the middle of the eighteenth century, he had enumerated four thousand species of animals, and the difficulties involved in the naming of each of them by Adam and in bringing them together in the ark appeared to all thinking men more and more insurmountable. ”

“ The genius of Linnæus lay in classification. Order and method were with him a passion. In his Systema Naturæ he fixed the place of Man in Nature, arranging Homo sapiens as a distinct species in the order Primates, [14] together with the apes, the lemurs, and the bats. He went further and classified the varieties of man, distinguishing them by skin colour and other characters into four groups—a classification which holds an honourable place at the present day. ”

“ It is an interleaved copy of the 'Systema Naturae,' two volumes in three, covered as to their margins and added pages with wonderful minute notes in Latin, and illustrated by Gray himself with delicately finished pen-and-ink drawings of birds and insects. During the later part of his life these volumes, we are told, were continually on his table, and his absorbing love for natural history is everywhere manifested in his journals and pocket-books. When he is in the country, he classes the plants; when in town, he notes the skins of birds in shops ”

“ In 1773 P. L. S. Müller brought out at Nuremberg a German translation of the Systema Naturae, completing it in 1776 by a Supplement containing a list of animals thus described, which had hitherto been technically anonymous, with diagnoses and names on the Linnaean model. In 1783 Boddaert printed at Utrecht a Table des planches enluminéez, [24] in which he attempted to refer every species of bird figured in that extensive series to its proper Linnaean genus, and to assign it a scientific name if it did not already possess one. ”

“ Well known general works on birds in which extinct species have, of course, also been mentioned, are, as a rule, not quoted; such as: The 27 volumes of the Catalogue of Birds; Brisson's Ornithology; Daubenton's, Buffon's and Montbeillard's works; Latham's Ornithological Writings; Linnaeus' Systema Naturae in all its editions; Vieillot's writings; popular natural histories and school books; Brehm's Thierleben in its various editions; Finsch's Papageien; Gray's and Sharpe's Hand-lists ”

“ In truth, therefore, all organic bodies would be miracles. Would not this change for us the presence of Nature? Would it not spoil her of her beauty? Hitherto we had a living Nature, displaying endless changes by her own forces. ”

“ Further, the purpose of the movement of nature must remain an insoluble enigma in this scheme of blind necessity. 'The inadequateness of the so-called physical view of nature as compared with the teleological is therefore most felt in the domain of organic nature, where special purpose in the phenomena of life appears everywhere in greatest distinctness.' The last remark is indisputable so long as we maintain either the constancy of species or a merely internal law of development ”

“ But even the domain of the natural itself, as we know it, is by no means simple and capable of a unified interpretation. Nature, especially in the realm of organic life, the animal and plant world, appears to be filled with marvels of purposefulness, with riddles of development and differentiation, in short with all the mysteries of life. ”

“ All naturalists have speculated upon the great plan of Nature; a grand array of organic essences, in which every species should be related in like ratio to its fellow species, by certain affinities, without gaps and without redundancies; the whole constituting a beautiful and perfect unity, a harmonious scheme, worthy of the infinite Mind that conceived it. Such a perfect plan has never been presented by any existing fauna or flora; nor is it made up by uniting the fossil faunas and floras to the recent ones ”

“ It is only by continually keeping in our minds all the facts of nature which I have endeavored, however imperfectly to set before you, that we can possibly realize and comprehend the great problems presented by the "World of Life"—its persistence in ever-changing but unchecked development throughout the geological ages, the exact adaptations of every species to its actual environment both inorganic and organic, and the exquisite forms of beauty and harmony in flower and fruit, in mammal and bird, in mollusc and in the infinitude of the insect-tribes ”

“ Thus, whether we look to the facts of adaptation or to those of beauty, everywhere throughout organic nature we meet with abundant evidence of natural causation, while nowhere do we meet with any independent evidence of supernatural design. ”

“ I have now briefly glanced at all the main facts of organic nature with reference to beauty; and, as a result, I think it is impossible to resist the general conclusion, that in organic nature beauty does not exist as an end per se. All cases where beauty can be pointed to in organic nature are seemingly due—either to natural selection, acting without reference to beauty, but to utility ”

“ When a naturalist, confining himself properly to reason and the laws of Nature, speculates on the origin of species, and attempts to show the correlation of form to form, the evolution of one from another, or the development of many distinct species from a common stock, the reverence of certain minds, which have long run in a certain groove that connects these obscure mysteries of Nature with some imagined interference of Omnipotence, is seriously shocked. ”

“ But when we pass from individual forms of life to Life in general, and inquire whether the same law is seen in the ensemble of its manifestations,—whether modern plants and animals are of more heterogeneous structure than ancient ones, and whether the Earth's present Flora and Fauna are more heterogeneous than the Flora and Fauna of the past,—we find the evidence so fragmentary, that every conclusion is open to dispute. ”

“ But we are familiar with the truth that in organic nature great things result from small beginnings--a common flower, and our own bony skulls, to say nothing of the matter contained within them, are proofs of it. Only a limited number of species sing in a highly finished manner. Looking at many species, we find every gradation, every shade, from the simple joyous chirp and cry to the
Music and Dancing in Nature. ”

“ From those infinitely remote ages when the first rudiments of organic life appeared upon the earth, every plant and every animal has been subject to one great law of physical change. As the earth has gone through its grand cycles of geological, climatal, and organic progress, every form of life has been subject to its irresistible action, and has been continually but imperceptibly moulded into such new shapes as would preserve their harmony with the ever-changing universe. ”

“ It is sufficient, if any steps, so far as we go, are supported by experience and observation." Now, that vegetation and generation, as well as reason, are experienced to be principles of order in nature, is undeniable. ”

“ Granting individual variability, then, how do species arise in nature? And how are all the exquisite adaptations of part to whole, and of whole to environment, gradually initiated, improved, and perfected? ”

“ Here, then, we likewise find that the cause determining plant beauty is natural selection; and so we may conclude that the only reason why the forms of trees which are thus determined by utility appeal to us as beautiful, is because we are accustomed to these the most ordinary forms. ”

“ The structures of organic beings have come about as a result of the action and reaction of environment upon these structures. Every being—and not only every being, but every species, the whole organic world—has come to be what it is as a result of the incessant hammerings of its surroundings, the hammerings not only of the present, but of the long-stretching past. By surroundings is meant, of course, the rest of the universe. ”

“ The old conception of living Nature as an infinitely varied assemblage of organisms which faithfully copy certain types, all of whose parts are governed by the law of final causes, in our time gives way, not without a fierce struggle, before a new conception, which represents living Nature as an infinitely varied assemblage of organisms which are ever varying under the influence of external circumstances, while under the influence of heredity they tend to fix in a type the results of previous variations. ”

“ At the dawn of modern biology, a century ago, no scientific evidence respecting the real history of life on the globe was extant, and, for any proof that existed to the contrary, species might have been of eternal duration. But philosophical speculation combined with theological dogma not only to favor the contrary opinion, but to lead the most philosophic naturalist of his day to embody the hypothesis of creation in a definition of species. ”

“ In fact, if we only had all the extinct forms, the organic kingdom, taken as a whole and throughout all time, ought to consist not of species at all, but simply of individual forms, shading insensibly into each other, like the colors of the spectrum, and our classification ought to be a mere matter of convenience, having no counterpart in nature. ”

“ This general principle of natural affinity, of which all naturalists have seen more or less well-marked evidence in organic nature, and after which they have all been feeling, has sometimes been regarded as natural, but more often as supernatural. Those who regarded it as supernatural took it to consist in a divine ideal of creation according to types, so that the structural affinities of organisms were to them expressions of an archetypal plan, which might be revealed in its entirety when all organisms on the face of the earth should have been examined. ”

“ A Creator who put needless or inconvenient fish structures into the anatomy of a land animal and made the whole fauna and flora of the land a patch-up of aquatic forms of life must be not so much a Divinity as a Pedant. But it is the burthen of the whole beautiful science of comparative anatomy that the structure of animals and plants, and their succession in time, fall exactly into the conditions defined by the Theory of Natural Selection. ”

“ The aphorism "Nature abhors close fertilization," and the demonstration of the principle, belong to our age, and to Mr. Darwin. To have originated this, and also the principle of Natural Selection—the truthfulness and importance of which are evident the moment it is apprehended—and to have applied these principles to the system of Nature in such a manner as to make, within a dozen years, a deeper impression upon natural history than has been made since Linnæus, is ample title for one man's fame. ”

“ Man, then, considered zoologically, and without regard to the distinct character assigned to him by theology, simply takes his place as the type of all types of the animal kingdom, the true and unmistakable head of animated nature upon this earth. It will readily occur that some more particular investigations into the ranks of types might throw additional light on man’s status, and perhaps his nature; and such light we may hope to obtain when the philosophy of zoology shall have been studied as it deserves. ”

“ Even the production of individual species is not the act of divine Providence, but is a process of nature — in fact, of evolution, in modern parlance. These Naturalists, as they called themselves, denied the existence of miracles ”

“ In this way we find a perfect harmony in the double nature of man, his rationality making use of and subsuming his animality; his soul arising from direct and immediate creation, and his body being formed at first (as now in each separate individual) by derivative or secondary creation, through natural laws. By such secondary creation, i.e. by natural laws, for the most part as yet unknown but controlled by "Natural Selection," all the various kinds of animals and plants have been manifested on this planet. ”

“ Some selection of one of these forms of the hypothesis, rather than the others, with evidence for the selection, is requisite to entitle us to place it among the known causes of change, which in this chapter we are considering. The bare conviction that a creation of species has taken place, whether once or many times, so long as it is unconnected with our organical sciences, is a tenet of Natural Theology rather than of Physical Philosophy. ”

“ Every single specimen of life in the animal world is from the first fettered by a definite, that is to say, a restricted and constant species, beyond the limits of which it cannot pass. There is in the spiritual world, no doubt, a general picture [Pg 206] of life and its organization, which floats vaguely before our vision; but in the real world, which is one with Nature, this universal organism breaks up into a multitude of particulars, each of which possesses the determinate type of form and grade of cultivation in which it is related to a definite portion of the social organism. ”