Darwiniana: EssaysAppleton, 1894 - 475ÆäÀÌÁö |
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1 ÆäÀÌÁö
... races in the struggle for life . " To render this thesis intelligible , it is necessary to interpret its terms . In the first place , what is a species ? The question is a simple one , but the right answer to it is hard to find , even ...
... races in the struggle for life . " To render this thesis intelligible , it is necessary to interpret its terms . In the first place , what is a species ? The question is a simple one , but the right answer to it is hard to find , even ...
16 ÆäÀÌÁö
... races of animals and plants , have been produced by one method . The breeder - and a skilful one must be a person of much sagacity and natural or acquired perceptive faculty - notes some slight difference , arising he knows not how , in ...
... races of animals and plants , have been produced by one method . The breeder - and a skilful one must be a person of much sagacity and natural or acquired perceptive faculty - notes some slight difference , arising he knows not how , in ...
17 ÆäÀÌÁö
... race may be formed , the tendency of which to reproduce itself is exceedingly strong ; nor is the limit to the amount of divergence which may be thus produced known ; but one thing is certain , that , if certain breeds of dogs , or of ...
... race may be formed , the tendency of which to reproduce itself is exceedingly strong ; nor is the limit to the amount of divergence which may be thus produced known ; but one thing is certain , that , if certain breeds of dogs , or of ...
39 ÆäÀÌÁö
... race being established per saltum , but of that race breeding " true " at once , and showing no mixed forms , even when crossed with another breed . By taking care to select Ancons of both sexes , for breeding from , it thus became easy ...
... race being established per saltum , but of that race breeding " true " at once , and showing no mixed forms , even when crossed with another breed . By taking care to select Ancons of both sexes , for breeding from , it thus became easy ...
40 ÆäÀÌÁö
... race of six - fingered men , as Seth Wright's ram became a nation of Ancon sheep , though the tendency of the variety to perpetuate itself appears to have been fully as strong in the one case as in the other . And the reason of the ...
... race of six - fingered men , as Seth Wright's ram became a nation of Ancon sheep , though the tendency of the variety to perpetuate itself appears to have been fully as strong in the one case as in the other . And the reason of the ...
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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 Hy©¡na 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