Darwiniana: EssaysAppleton, 1894 - 475페이지 |
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209 페이지
... primitive stock ; but he contributed nothing to the general doctrine of evolution . Erasmus Darwin ( " Zoonomia , " 1794 ) , though a zealous evolutionist , can hardly be said to have made any real advance on his predecessors ; and ...
... primitive stock ; but he contributed nothing to the general doctrine of evolution . Erasmus Darwin ( " Zoonomia , " 1794 ) , though a zealous evolutionist , can hardly be said to have made any real advance on his predecessors ; and ...
396 페이지
... primitive stock seems to be better preserved if you propagate it by means of a slip than if you resort to the sexual mode . Again , in experiments upon the lower animals , such as the polype , to which I have referred , it is most ...
... primitive stock seems to be better preserved if you propagate it by means of a slip than if you resort to the sexual mode . Again , in experiments upon the lower animals , such as the polype , to which I have referred , it is most ...
399 페이지
... primitive stock is the necessary result of the method of sexual propagation itself ; for , inas- much as the thing propagated proceeds from two organisms of different sexes and different makes and temperaments , and as the offspring is ...
... primitive stock is the necessary result of the method of sexual propagation itself ; for , inas- much as the thing propagated proceeds from two organisms of different sexes and different makes and temperaments , and as the offspring is ...
418 페이지
... primitive stock which can be produced by this process of selective breeding ? In considering this question , it will be useful to class the characteristics , in respect of which organic beings vary , under two heads : we may consider ...
... primitive stock which can be produced by this process of selective breeding ? In considering this question , it will be useful to class the characteristics , in respect of which organic beings vary , under two heads : we may consider ...
425 페이지
... primitive stock . " This is very com- monly assumed to be a fact , and it is an argument that is commonly brought forward as conclusive ; but if you will take the trouble to inquire into it rather closely , I think you will find that it ...
... primitive stock . " This is very com- monly assumed to be a fact , and it is an argument that is commonly brought forward as conclusive ; but if you will take the trouble to inquire into it rather closely , I think you will find that it ...
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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