The Doctrine of Descent and DarwinismD. Appleton, 1875 - 334 páginas |
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Página 7
... of the gradual and direct development of the higher and now - existing organisms from lower ancestral forms - in short , for the doctrine of the continuity of life , we must begin with a survey of the REFERENCE TO DARWIN . 7.
... of the gradual and direct development of the higher and now - existing organisms from lower ancestral forms - in short , for the doctrine of the continuity of life , we must begin with a survey of the REFERENCE TO DARWIN . 7.
Página 9
... lower leg bone ; but instead of the bones of the tarsus and me- tatarsus , the latter of which affords attachment to the C FIG . I. m n b toes , we find only the long bone c , and at its lower extremity a small bone supporting the four ...
... lower leg bone ; but instead of the bones of the tarsus and me- tatarsus , the latter of which affords attachment to the C FIG . I. m n b toes , we find only the long bone c , and at its lower extremity a small bone supporting the four ...
Página 10
... lower one with the consolidated metatarsus . Only thus do we obtain a true perception of the fact manifested in A ... lower to the higher , analogous to the various members existing side by side in the same group of animals , -how , for ...
... lower one with the consolidated metatarsus . Only thus do we obtain a true perception of the fact manifested in A ... lower to the higher , analogous to the various members existing side by side in the same group of animals , -how , for ...
Página 13
... lower spheres . If my arm hurls a stone into the air , this is contrary to the nature of the stone , and is not an effect of the law of gravitation , but the interposition of a higher power and a higher will , producing effects which ...
... lower spheres . If my arm hurls a stone into the air , this is contrary to the nature of the stone , and is not an effect of the law of gravitation , but the interposition of a higher power and a higher will , producing effects which ...
Página 23
... lower , an animal grade . " IL The Animal World in its Present State . IN MAN HAS RISEN FROM A LOWER GRADE . 23.
... lower , an animal grade . " IL The Animal World in its Present State . IN MAN HAS RISEN FROM A LOWER GRADE . 23.
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Palavras e frases frequentes
according adaptation already Ammonites Amphibians animal world apes appearance Ascidian birds body bone brain causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryo Eocene exhibit existence external facts families fauna fish formation fossil Gastrula gemmules genera genus geological Goethe grade gradually groups Haeckel heredity higher horse human hypothesis idea individual infer intermediate forms investigation islands lancelet language larva larvæ likewise linguistic lower mammals Marsupials Medusa ment merely metamorphosis modifications morphological mutability natural selection observations Oolite organisms origin ovum peculiar pedigree perfect period phase phenomena placenta plants polypes possess present primordial progenitors races regard relations remains reproduction reptiles Rütimeyer says scarcely scientific separate sexual Silurian skull species strata structure systematic terrestrial animals theory of selection tion transformation true Ungulata Ungulates varieties vertebral column Vertebrata vertebrate animals whole