The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 5
... means of language proceeding from primitive rudi- ments , they were , nevertheless , satisfied to assume the privileged position of man as an absolute endowment , or a self - evident axiom . This continued as long as natural science was ...
... means of language proceeding from primitive rudi- ments , they were , nevertheless , satisfied to assume the privileged position of man as an absolute endowment , or a self - evident axiom . This continued as long as natural science was ...
Стр. 21
... means of delicately - formed organs of sensation it were possible to observe the molecular motions in a crystal mechanically injured in any part , it could not be unconditionally denied that the motions , hereby excited , take place ...
... means of delicately - formed organs of sensation it were possible to observe the molecular motions in a crystal mechanically injured in any part , it could not be unconditionally denied that the motions , hereby excited , take place ...
Стр. 25
... means of a connective tissue . In this inter- mediate kingdom the much derided " primordial slime " ( Urschleim ) of the natural philosophers has regained its honourable position . Many thousand cubic miles of the sea - bottom consist ...
... means of a connective tissue . In this inter- mediate kingdom the much derided " primordial slime " ( Urschleim ) of the natural philosophers has regained its honourable position . Many thousand cubic miles of the sea - bottom consist ...
Стр. 26
... means of observation , these and similar beings are the simplest organisms devoid of organs . While ac- centuating the limits of research as restricted by inade- quate means of observation , we maintain the validity . of Rollet's retort ...
... means of observation , these and similar beings are the simplest organisms devoid of organs . While ac- centuating the limits of research as restricted by inade- quate means of observation , we maintain the validity . of Rollet's retort ...
Стр. 29
... means of execution are very different , and therefore the general effect is different . In the variety and correlation of the organs destined for the different manifestations of life , we have a standard for the rank of the animals ...
... means of execution are very different , and therefore the general effect is different . In the variety and correlation of the organs destined for the different manifestations of life , we have a standard for the rank of the animals ...
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according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds brain carboniferous causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryonic Eocene exhibit existence 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 Insectivora intermediate forms islands lancelet language larva larvæ likewise linguistic 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 strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition true Ungulata Ungulates varieties 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 - 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.