Darwiniana: EssaysD. Appleton, 1897 - 475ÆäÀÌÁö |
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3 ÆäÀÌÁö
... called hybrids , are so . It is affirmed not only that this is an experimental fact , but that it is a provision for the preservation of the purity of species . Such a criterion as this would be invaluable ; but , unfortunately , not ...
... called hybrids , are so . It is affirmed not only that this is an experimental fact , but that it is a provision for the preservation of the purity of species . Such a criterion as this would be invaluable ; but , unfortunately , not ...
13 ÆäÀÌÁö
... called , has been a " skeleton in the closet " to many an honest zoologist and botanist who had a soul above the mere naming of dried plants and skins . Surely , has such an one thought , nature is a mighty and consistent whole , and ...
... called , has been a " skeleton in the closet " to many an honest zoologist and botanist who had a soul above the mere naming of dried plants and skins . Surely , has such an one thought , nature is a mighty and consistent whole , and ...
26 ÆäÀÌÁö
... called Morphology — that which concerns itself with function , Physiology— so that we may conveniently speak of these two senses , or aspects , of " species " -the one as mor- - phological , the other as physiological . Regarded ¡¤ from ...
... called Morphology — that which concerns itself with function , Physiology— so that we may conveniently speak of these two senses , or aspects , of " species " -the one as mor- - phological , the other as physiological . Regarded ¡¤ from ...
36 ÆäÀÌÁö
... called adaptation to circumstances ; but , to use a conveniently erroneous phrase , the variations arose spontaneously . The fruitless search after final causes leads their pursuers a long way ; but even those hardy teleologists , who ...
... called adaptation to circumstances ; but , to use a conveniently erroneous phrase , the variations arose spontaneously . The fruitless search after final causes leads their pursuers a long way ; but even those hardy teleologists , who ...
43 ÆäÀÌÁö
... called external circumstances , upon the wild rock - pigeon . On the contrary , from time immemorial pigeon - fanciers have had essentially similar methods of treating their pets , which have been housed , fed , protected and cared for ...
... called external circumstances , upon the wild rock - pigeon . On the contrary , from time immemorial pigeon - fanciers have had essentially similar methods of treating their pets , which have been housed , fed , protected and cared for ...
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adapted Agamogenesis Ancon animalcules animals animals and plants appear beds biological birds body bones called carbonic acid causes character Charles Darwin common course creation cross curious Darwin Darwin's views deposited direct doctrine of evolution domestic pigeons doubt endeavour epigenesis epoch Erasmus Darwin evidence ex nihilo experiments extinct fact favour forms fossil geological germ groups horse Hy©¡na hypothesis ichthyosaurus inorganic world inquiry kind knowledge Lamarck lectures less living male matter means mind Mivart modification natural selection naturalists observation offspring operation organic nature organisation Origin of Species parent peculiar perpetuation phenomena physiological pigeons Pikermi Pouter present primitive stock produced Quarterly Reviewer question races reason remarkable result Rock Pigeon scientific selective breeding sense sheep skeleton sort speculations spontaneous structure Suarez substance suppose Teleology tendency theory thing tion toes variation varieties vary vegetable whole