Darwiniana: EssaysAppleton, 1894 - 475페이지 |
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40 페이지
... 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 difference is not far to seek . Seth Wright took care not to weaken the Ancon blood by matching ...
... 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 difference is not far to seek . Seth Wright took care not to weaken the Ancon blood by matching ...
41 페이지
... tendency to fatten or to remain lean , to give much or little milk , speed , strength , tem- per , intelligence , special instincts ; there is not one of these characters the transmission of which is not an every - day occurrence within ...
... tendency to fatten or to remain lean , to give much or little milk , speed , strength , tem- per , intelligence , special instincts ; there is not one of these characters the transmission of which is not an every - day occurrence within ...
53 페이지
... tendencies . With eyes fixed on the noble goal to which " per aspera et ardua " they tend , they may , now and then , be stirred to momentary wrath by the unnecessary obstacles with which the ignorant , or the malicious , encum- ber ...
... tendencies . With eyes fixed on the noble goal to which " per aspera et ardua " they tend , they may , now and then , be stirred to momentary wrath by the unnecessary obstacles with which the ignorant , or the malicious , encum- ber ...
83 페이지
... tendency of the structure to vary indefinitely ; and secondly , from something in the surrounding world which helped all variations in the direction of an accurate time - keeper , and checked all those in other directions ; then it is ...
... tendency of the structure to vary indefinitely ; and secondly , from something in the surrounding world which helped all variations in the direction of an accurate time - keeper , and checked all those in other directions ; then it is ...
89 페이지
... tendency of organisms to give rise to useful varieties , and a natural selection , do not exist . " The varieties which are found arise in consequence of manifold external influences , and it is not obvious why they all , or partially ...
... tendency of organisms to give rise to useful varieties , and a natural selection , do not exist . " The varieties which are found arise in consequence of manifold external influences , and it is not obvious why they all , or partially ...
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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