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adaptive admit allied animal kingdom appear argument argument from ignorance artificial selection beauty becomes birds bones cells chapter characters chromatin classification colour consideration constitute continuity correlation course Darwin degree difficulty digitigrade distinct Drawn egg-cell evidence in favour explain fact faunas fish formation forms fossils function furnished gastrula genera hand hypothesis importance individual insects instance instincts kind Lastly less male mammals matter Metazoa modification natural affinity natural causes natural selection naturalists nucleus objections observed occur organic evolution organic nature Origin of Species ovum peculiar species phenomena plantigrade polar bodies present principle Prof pronuclei Protozoa purpose question reason regard remarkable resemblance sexual selection special creation spermatozoon stages structure struggle for existence supposed tail theory of descent theory of evolution theory of natural theory of special tion variations Vertebrata vertebrated vestigial vestigial structures Wallace whole
Page 431 - I look at the geological record as a history of the world imperfectly kept, and written in a changing dialect; of this history we possess the last volume alone, relating only to two or three countries. Of this volume, only here and there a short chapter has been preserved; and of each page, only here and there a few lines.
Page 225 - There are twenty-six land-birds ; of these, twenty-one, or perhaps twenty-three, are ranked as distinct species, and would commonly be assumed to have been here created: yet the close affinity of most of these birds to American species is manifest in every character, in their habits, gestures, and tones of voice.
Page 226 - Archipelago, and nowhere else, bear so plainly the stamp of affinity to those created in America? There is nothing in the conditions of life, in the geological nature of the islands, in their height or climate, or in the proportions in which the several classes are associated together, which closely resembles the conditions of the South American coast: in fact, there is a considerable dissimilarity in all these respects.
Page 90 - In the Melanian races, on the other hand, the wisdom-teeth are usually furnished with three separate fangs, and are generally sound; they also differ from the other molars in size less than in the Caucasian races. Prof. Schaffhausen accounts for this difference between the races by "the posterior dental portion of the jaw being always shortened...
Page 84 - His attention was first called to the subject whilst at work on his figure of Puck, to which he had given pointed ears. He was thus led to examine the ears of various monkeys, and subsequently more carefully those of man. The peculiarity consists in a little blunt point, projecting from the inwardly folded margin, or helix.
Page 257 - That is to say, in every generation of every species a great many more individuals are born than can possibly survive ; so that there is in consequence a perpetual battle for life going on among all the constituent individuals of 'a.ny given generation. Now, in this struggle for existence, which individuals will be victorious and live ? Assuredly those which are best fitted to live : the weakest and the least fitted to live will succumb and die, while the strongest and the best fitted to live will...
Page 84 - The helix obviously consists of the extreme margin of the ear folded inwards; and this folding appears to be in some manner connected with the whole external ear being permanently pressed backwards. In many monkeys, which do not stand high in the order, as baboons and some species of macacus...
Page 459 - GOD. 32 pages. Paper, 15 cents. THE SOUL OF MAN. An Investigation of the Facts of Physiological and Experimental Psychology.
Page 459 - GARBE, RICHARD. THE REDEMPTION OF THE BRAHMAN. A TALE OF HINDU LIFE. Laid paper. Gilt top. 96 pages. Price, 75c (3s.
Page 440 - ... plants is made possible. A watch could not go, except there were the most exact adjustment in the forms and positions of its wheels ; yet no one would accept it as an explanation of the origin of such forms and positions, that the watch would not go if these were other than they are. If the objector were to suppose that plants were originally fitted to years of various lengths, and that such only have survived to the present time, as had a cycle of a length equal to our present year, or one which...