Darwiniana: EssaysAppleton, 1894 - 475페이지 |
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37 페이지
... place : Salvator had four children , three of whom exhibited the hexadactyle members of their grandfather and father , while the youngest had the pentadactyle limbs of the mother and grandmother ; so that here. II 37 THE ORIGIN OF SPECIES.
... place : Salvator had four children , three of whom exhibited the hexadactyle members of their grandfather and father , while the youngest had the pentadactyle limbs of the mother and grandmother ; so that here. II 37 THE ORIGIN OF SPECIES.
39 페이지
... exhibited the complete marks and features of the ewe , the other of the ram . The contrast has been rendered singularly striking , when one short - legged and one long - legged lamb , produced at a birth , have been seen sucking the dam ...
... exhibited the complete marks and features of the ewe , the other of the ram . The contrast has been rendered singularly striking , when one short - legged and one long - legged lamb , produced at a birth , have been seen sucking the dam ...
40 페이지
... , because , for several generations , care was taken to select both parents of the breeding stock from animals exhibiting a tendency to vary in the same direction ; while , in the other , no. 40 II THE ORIGIN OF SPECIES.
... , because , for several generations , care was taken to select both parents of the breeding stock from animals exhibiting a tendency to vary in the same direction ; while , in the other , no. 40 II THE ORIGIN OF SPECIES.
41 페이지
... exhibited by both parents than that possessed by only one . There is no organ of the body of an animal which may not , and does not , occasionally , vary more or less from the normal type ; and there is no variation which may not be ...
... exhibited by both parents than that possessed by only one . There is no organ of the body of an animal which may not , and does not , occasionally , vary more or less from the normal type ; and there is no variation which may not be ...
43 페이지
... We have said that the following out of the properties exhibited by physiological species would lead us into difficulties , and at this point they begin to be obvious ; for if , as the result. II 43 THE ORIGIN OF SPECIES.
... We have said that the following out of the properties exhibited by physiological species would lead us into difficulties , and at this point they begin to be obvious ; for if , as the result. II 43 THE ORIGIN OF SPECIES.
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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