Darwiniana: EssaysAppleton, 1894 - 475페이지 |
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16 페이지
... pigeons are quite as extraordinary and unlike one another and their parent stock , while the Horti- cultural Society will provide him with any number of corresponding vegetable aberrations from nature's types . He will learn with no ...
... pigeons are quite as extraordinary and unlike one another and their parent stock , while the Horti- cultural Society will provide him with any number of corresponding vegetable aberrations from nature's types . He will learn with no ...
17 페이지
... pigeons , or of horses , were known only in a fossil state , no naturalist would hesitate in regarding them as distinct species . But in all these cases we have human interfer- ence . Without the breeder there would be no selection ...
... pigeons , or of horses , were known only in a fossil state , no naturalist would hesitate in regarding them as distinct species . But in all these cases we have human interfer- ence . Without the breeder there would be no selection ...
42 페이지
... pigeon , which Mr. Darwin has , in our opinion , satisfactorily demonstrated to be the progenitor of all our domestic pigeons , of which there are certainly more than a hundred well - marked races . most noteworthy of these races are ...
... pigeon , which Mr. Darwin has , in our opinion , satisfactorily demonstrated to be the progenitor of all our domestic pigeons , of which there are certainly more than a hundred well - marked races . most noteworthy of these races are ...
43 페이지
... pigeon - fanciers have had essentially similar methods of treating their pets , which have been housed , fed , protected and cared for in much the same way in all pigeonries . In fact , there is no case better adapted than that of the ...
... pigeon - fanciers have had essentially similar methods of treating their pets , which have been housed , fed , protected and cared for in much the same way in all pigeonries . In fact , there is no case better adapted than that of the ...
44 페이지
... pigeon . Under these circumstances , as it is admitted on all sides that races occur in Nature , how are we to know whether any apparently distinct animals are really of different physiological species , or not , seeing that the amount ...
... pigeon . Under these circumstances , as it is admitted on all sides that races occur in Nature , how are we to know whether any apparently distinct animals are really of different physiological species , or not , seeing that the amount ...
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action adapted admit Agamogenesis Ancon animalcules animals animals and plants appears biology birds body called causes character Charles Darwin course creation Crustacea Darwin Darwin's views Darwinian deposited direct doctrine of evolution doubt Dysteleology endeavour epigenesis epoch Erasmus Darwin essay 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 present primitive stock principles produced Quarterly Reviewer question races reason remarkable result scientific selective breeding sensations sense special creation speculations structure Suarez substantial forms suppose Teleology tendency theory thing thought tion toes truth variation varieties vegetabilia vegetable vera causa Wallace whole