The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 18
... appearance on the earth of life in the abstract does not render it incomprehensible . For life in the abstract , contemplated from the standpoint of the theoretical investigation of nature , is merely the arrangement of molecules in a ...
... appearance on the earth of life in the abstract does not render it incomprehensible . For life in the abstract , contemplated from the standpoint of the theoretical investigation of nature , is merely the arrangement of molecules in a ...
Стр. 37
... appearance of the lowest mammal known , is by no means to be sought in a direct relationship , but in a remote cousinhood . But we must draw attention , not to these connecting forms , which natural history assumes as perfectly self ...
... appearance of the lowest mammal known , is by no means to be sought in a direct relationship , but in a remote cousinhood . But we must draw attention , not to these connecting forms , which natural history assumes as perfectly self ...
Стр. 42
... appearance of the several genera of coral depends merely on minor modifications of this mode of reproduction . Yet single corals exist in which , on careful comparison , not only may accidental deviations be already discerned , but ...
... appearance of the several genera of coral depends merely on minor modifications of this mode of reproduction . Yet single corals exist in which , on careful comparison , not only may accidental deviations be already discerned , but ...
Стр. 48
... appearance of C. E. von Baer's really classical and fundamental work on the " Evolutionary History of Animals " ( Entwickelungsgeschichte der Thiere ) , the view , founded on incomplete observations , had become established , that in ...
... appearance of C. E. von Baer's really classical and fundamental work on the " Evolutionary History of Animals " ( Entwickelungsgeschichte der Thiere ) , the view , founded on incomplete observations , had become established , that in ...
Стр. 53
... appearance , the indications of the so - called primordial segments . The symmetrical disposition of the organs , and the integration of the body out of consecutive segments , is herewith initiated . All further development . emanates ...
... appearance , the indications of the so - called primordial segments . The symmetrical disposition of the organs , and the integration of the body out of consecutive segments , is herewith initiated . All further development . emanates ...
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Часто встречающиеся слова и выражения
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.