Darwiniana: EssaysD. Appleton, 1896 - 475페이지 |
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4 페이지
... relations to the conditions which surround them , their mutual harmonies and discordancies of structure , the bond of union of their present and their past history , he finds himself , according to the received notions , in a mighty ...
... relations to the conditions which surround them , their mutual harmonies and discordancies of structure , the bond of union of their present and their past history , he finds himself , according to the received notions , in a mighty ...
7 페이지
... relations which they exhibit . One would be inclined to suppose à priori that every country must be naturally peopled by those animals that are fittest to live and thrive in it . And yet how , on this hypothesis , are we to account for ...
... relations which they exhibit . One would be inclined to suppose à priori that every country must be naturally peopled by those animals that are fittest to live and thrive in it . And yet how , on this hypothesis , are we to account for ...
26 페이지
... relations . When we call a group of animals , or of plants , a species , we may imply thereby , either that all these animals or plants have some common peculi- arity of form or structure ; or , we may mean that they possess some common ...
... relations . When we call a group of animals , or of plants , a species , we may imply thereby , either that all these animals or plants have some common peculi- arity of form or structure ; or , we may mean that they possess some common ...
32 페이지
... the production , in course of time , of an indefinitely large group , the whole of the mem- bers of which are at once very similar and are blood relations , having descended from the same parent , or 32 II THE ORIGIN OF SPECIES.
... the production , in course of time , of an indefinitely large group , the whole of the mem- bers of which are at once very similar and are blood relations , having descended from the same parent , or 32 II THE ORIGIN OF SPECIES.
33 페이지
Essays Thomas Henry Huxley. relations , having descended from the same parent , or pair of parents . The proof that all the members of any given group of animals , or plants , had thus descended , would be ordinarily considered ...
Essays Thomas Henry Huxley. relations , having descended from the same parent , or pair of parents . The proof that all the members of any given group of animals , or plants , had thus descended , would be ordinarily considered ...
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adapted admit Agamogenesis Ancon animalcules animals animals and plants appears believe biological birds body called causes character Charles Darwin course creation Crustacea Darwin Darwin's views Darwinian deposited direct doctrine of evolution domestic pigeons doubt Dysteleology endeavour epigenesis epoch Erasmus Darwin evidence ex nihilo exhibited existence extinct fact favour Flourens geological germ give rise groups horse Hyæna hypothesis inorganic world inquiry kind knowledge Lamarck laws lectures less living Maillet male matter means ment Mivart modification natural selection naturalists objections observation offspring organic nature organisation Origin of Species ovum parent peculiar phenomena philosophical physiological pigeons Pikermi present primitive stock produced Quarterly Reviewer question races reason remarkable result scientific selective breeding sensations sense special creation speculations spontaneous structure Suarez substantial forms suppose Teleology tendency theory thing tion toes variation varieties vegetabilia vegetable Wallace whole
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275 페이지 - In July opened first note-book on Transmutation of Species. Had been greatly struck from about the month of previous March on character of South American fossils, and species on Galapagos Archipelago. These facts (especially latter), origin of all my views."] 1836-1837.
262 페이지 - s lectures on Geology and Zoology, but they were incredibly dull The sole effect they produced on me was the determination never as long as I lived to read a book on Geology, or in any way to study the science.
279 페이지 - I soon perceived that selection was the keystone of man's success in making useful races of animals and plants. But how selection could be applied to organisms living in a state of nature remained for some time a mystery to me.
229 페이지 - History warns us, however, that it is the customary fate of new truths to begin as heresies and to end as superstitions...
112 페이지 - The teleological and the mechanical views of nature are not, necessarily, mutually exclusive. On the contrary, the more purely a mechanist the speculator is, the more firmly does he assume a primordial molecular arrangement of which all the phenomena of the universe...
162 페이지 - And if so, it must be true, in the same sense and to the same extent, that the thoughts to which I am now giving utterance, and your thoughts regarding them, are the expression of molecular changes in that matter of life which is the source of our other vital phenomena.
25 페이지 - ... maps and in museums, but by long voyages and laborious collection; having largely advanced each of these branches of science, and having spent many years in gathering and sifting materials for his present work; the store of accurately-registered facts upon which the author of the 'Origin of Species' is able to draw at will, is prodigious.
223 페이지 - natural selection " suffices for the production of species remains to be seen. Few can doubt that, if not the whole cause, it is a very important factor in that operation ; and that it must play a great part in the sorting out of varieties into those which are transitory and those which are permanent.
247 페이지 - The hour of departure has arrived, and we go our ways — I to die, and you to live. Which is better, God only knows.
255 페이지 - Lamarck and his views on evolution. I listened in silent astonishment, and as far as I can judge without any effect on my mind. I had previously read the Zoonomia of my grandfather, in which similar views are maintained, but without producing any effect on me. Nevertheless it is probable that the hearing rather early in life such views maintained and praised may have favoured my upholding them under a different form in my Origin of Species.