The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 10
... 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 man possesses three ...
... 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 man possesses three ...
Стр. 11
... facts also forms part of the indispensable basis of our opera- tions . Geology entered the right track forty years ago . We now know that the world was not made backwards , but originated by gradual formations and metamorphoses ; we may ...
... facts also forms part of the indispensable basis of our opera- tions . Geology entered the right track forty years ago . We now know that the world was not made backwards , but originated by gradual formations and metamorphoses ; we may ...
Стр. 12
Dr. Schmidt (Eduard Oskar), Oscar Schmidt. These groups of facts , thus mutually referring to each other , must be , in some degree , examined by any one desirous of understanding them . In other words , we must first review this vast ...
Dr. Schmidt (Eduard Oskar), Oscar Schmidt. These groups of facts , thus mutually referring to each other , must be , in some degree , examined by any one desirous of understanding them . In other words , we must first review this vast ...
Стр. 16
... facts to analysis , would be able to reduce to a single formula the motions of the largest heavenly body and of the lightest atom . To such a mind nothing would be uncertain , and the future , like the past , would lie open before it ...
... facts to analysis , would be able to reduce to a single formula the motions of the largest heavenly body and of the lightest atom . To such a mind nothing would be uncertain , and the future , like the past , would lie open before it ...
Стр. 37
... fact , amounted to the insertion of the right intermediate forms between each two forms devi- ating from each other in a higher degree ; nay , in some cases , intermediate forms were sought where none exist . The older zoology always ...
... fact , amounted to the insertion of the right intermediate forms between each two forms devi- ating from each other in a higher degree ; nay , in some cases , intermediate forms were sought where none exist . The older zoology always ...
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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.