Darwiniana: EssaysD. Appleton, 1897 - 475페이지 |
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64 페이지
... deposited the rocky masses which compose its mountains by processes comparable to those which are now forming mud , sand , and shingle ; and then to have gradually lowered their level , leaving the spoils of their animal and vegetable ...
... deposited the rocky masses which compose its mountains by processes comparable to those which are now forming mud , sand , and shingle ; and then to have gradually lowered their level , leaving the spoils of their animal and vegetable ...
191 페이지
... deposited in the interstices of the elementary structures of which the miniature chick , or germ , is made up . The consequence of this intussuscep- tive growth is the " development " or development " or " evolution " of the germ into ...
... deposited in the interstices of the elementary structures of which the miniature chick , or germ , is made up . The consequence of this intussuscep- tive growth is the " development " or development " or " evolution " of the germ into ...
335 페이지
... deposited first , that is , as soon as the current begins to lose its force by becoming amalgamated with the stiller depths of the ocean , but the finer and lighter particles are carried further on , and eventually deposited in a deeper ...
... deposited first , that is , as soon as the current begins to lose its force by becoming amalgamated with the stiller depths of the ocean , but the finer and lighter particles are carried further on , and eventually deposited in a deeper ...
337 페이지
... deposited upon the bottom of the sea , or in the estuary of rivers ; take it to be an inch , or two , or three inches a year , or whatever you may roughly estimate it at ; then take the total thickness of the whole series of stratified ...
... deposited upon the bottom of the sea , or in the estuary of rivers ; take it to be an inch , or two , or three inches a year , or whatever you may roughly estimate it at ; then take the total thickness of the whole series of stratified ...
343 페이지
... than the part b of the bed B. Is this sound reasoning ? If you find any record of changes taking place at b , did they occur before any events which took place while a was being deposited 51 XI PHENOMENA OF ORGANIC NATURE 343.
... than the part b of the bed B. Is this sound reasoning ? If you find any record of changes taking place at b , did they occur before any events which took place while a was being deposited 51 XI PHENOMENA OF ORGANIC NATURE 343.
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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