Darwiniana: EssaysD. Appleton, 1897 - 475페이지 |
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1 페이지
... parents ; it is the smallest distinctly definable group of living organisms ; it is an eternal and immutable entity ; it is a mere abstraction of the human intellect having no existence in nature . Such are a few of the significations ...
... parents ; it is the smallest distinctly definable group of living organisms ; it is an eternal and immutable entity ; it is a mere abstraction of the human intellect having no existence in nature . Such are a few of the significations ...
3 페이지
... parent species , but he goes so far as to assert that the particular plant Crinum capense is much more fertile when crossed by a distinct species than when fertilised by its proper pollen ! I 3 THE DARWINIAN HYPOTHESIS.
... parent species , but he goes so far as to assert that the particular plant Crinum capense is much more fertile when crossed by a distinct species than when fertilised by its proper pollen ! I 3 THE DARWINIAN HYPOTHESIS.
16 페이지
... 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 little surprise , too , in the course of his travels , that the ...
... 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 little surprise , too , in the course of his travels , that the ...
19 페이지
... parents . Their offspring will , by a parity of reasoning , tend to predominate over their contemporaries , and there being ( sup- pose ) no room for more than one species such as A , the weaker variety will eventually be destroyed by ...
... parents . Their offspring will , by a parity of reasoning , tend to predominate over their contemporaries , and there being ( sup- pose ) no room for more than one species such as A , the weaker variety will eventually be destroyed by ...
30 페이지
... parental stock ; but even the wonderful powers of reproducing lost parts possessed by these animals are controlled by the same governing tendency . Cut off the legs , the tail , the jaws , separately or all together , 30 II THE ORIGIN ...
... parental stock ; but even the wonderful powers of reproducing lost parts possessed by these animals are controlled by the same governing tendency . Cut off the legs , the tail , the jaws , separately or all together , 30 II THE ORIGIN ...
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adapted Agamogenesis Ancon animalcules animals animals and plants appear beds biological birds body bones called carbonic acid causes character Charles Darwin common course creation cross curious Darwin Darwin's views deposited direct doctrine of evolution domestic pigeons doubt endeavour epigenesis epoch Erasmus Darwin evidence ex nihilo experiments extinct fact favour forms fossil geological germ groups horse Hyæna hypothesis ichthyosaurus inorganic world inquiry kind knowledge Lamarck lectures less living male matter means mind Mivart modification natural selection naturalists observation offspring operation organic nature organisation Origin of Species parent peculiar perpetuation phenomena physiological pigeons Pikermi Pouter present primitive stock produced Quarterly Reviewer question races reason remarkable result Rock Pigeon scientific selective breeding sense sheep skeleton sort speculations spontaneous structure Suarez substance suppose Teleology tendency theory thing tion toes variation varieties vary vegetable whole