The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 3
... true natural causes is concerned , they would wish to deny point - blank the possibility of such ex- planation or such knowledge , and to refer life to an unapproachable and mystic domain . Or , if the solu- tion of the problem of life ...
... true natural causes is concerned , they would wish to deny point - blank the possibility of such ex- planation or such knowledge , and to refer life to an unapproachable and mystic domain . Or , if the solu- tion of the problem of life ...
Стр. 6
... true to himself , he includes man also within the range of his researches , and purposes to apply to him all the consequences of his doctrine . But it appears to me that the dispute and the agitation are still keener on this side of the ...
... true to himself , he includes man also within the range of his researches , and purposes to apply to him all the consequences of his doctrine . But it appears to me that the dispute and the agitation are still keener on this side of the ...
Стр. 10
... true perception of the fact manifested in A , although the cause of the fact does not as yet appear . The next example is rather more difficult . With- out the history of development , comparative anatomy is incapable of explaining why ...
... true perception of the fact manifested in A , although the cause of the fact does not as yet appear . The next example is rather more difficult . With- out the history of development , comparative anatomy is incapable of explaining why ...
Стр. 20
... true , but sensible as heat . But likewise the combination of the particle of oxygen introduced into the animal body by the respi- ration , with the un - oxygenated constituents of the blood , is a motion subject to computation , and ...
... true , but sensible as heat . But likewise the combination of the particle of oxygen introduced into the animal body by the respi- ration , with the un - oxygenated constituents of the blood , is a motion subject to computation , and ...
Стр. 30
... true , even now prevail as to the extent of several of these types or families , as we will already term them ; but if we dis- regard the dubious , and in many ways suspicious , exis- tences , generally comprised under the name of ...
... true , even now prevail as to the extent of several of these types or families , as we will already term them ; but if we dis- regard the dubious , and in many ways suspicious , exis- tences , generally comprised under the name of ...
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according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds brain causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryonic Eocene exhibit external facts families fauna fish formation fossil Ganoids Gastrula genera genus geological Goethe grade gradually groups Haeckel heredity higher horse human hypothesis idea individual infer intermediate forms islands lancelet language larva larvæ likewise linguistic Linnæus lower mammals Marsupials Medusa ment merely metamorphosis modifications morphological mutability natural selection observation Oolite organisms origin peculiar pedigree perfect period phase phenomena placenta plants polypes possess present primordial progenitors races relations remains reproduction reptiles resemblance Rütimeyer says scarcely scientific separate sexual Silurian skull species sponges strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition true Ungulata Ungulates varieties vegetal vertebral column Vertebrata vertebrate animals whole
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Стр. 162 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.18 Darwin always knew that his views would be controversial. A few days before The Origin of Species appeared, Darwin wrote, in a letter to Wallace, 'God knows what...
Стр. 160 - I had not formerly sufficiently considered the existence of many structures which appear to be, as far as we can judge, neither beneficial nor injurious ; and this I believe to be one of the greatest oversights as yet detected in my work.
Стр. 160 - Na'geli on plants, and the remarks by various authors with respect to animals, more especially those recently made by Professor Broca, that in the earlier editions of my Origin of Species I perhaps attributed too much to the action of natural selection or the survival of the fittest.