The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 5
... becoming man , by 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 ...
... becoming man , by 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 ...
Стр. 19
... become susceptible of mechanical explana- tion . " For the elucidation of the example just given of animal heat , let us observe that modern physics have learnt to know heat as a peculiar mode of motion . The motion . of the hammer as ...
... become susceptible of mechanical explana- tion . " For the elucidation of the example just given of animal heat , let us observe that modern physics have learnt to know heat as a peculiar mode of motion . The motion . of the hammer as ...
Стр. 27
... become acquainted with bodies which present the simplest structure to the as- sisted eye , and to anatomical research . The substance which characterizes them is found again in plants as well as in animals ; and plants and animals must ...
... become acquainted with bodies which present the simplest structure to the as- sisted eye , and to anatomical research . The substance which characterizes them is found again in plants as well as in animals ; and plants and animals must ...
Стр. 32
... become an actual muscular cylinder . To this we will add , that the per- plexities and difficulties in reference to points of classi- fication are transformed into sources of knowledge for the adherent of the doctrine of Descent . The ...
... become an actual muscular cylinder . To this we will add , that the per- plexities and difficulties in reference to points of classi- fication are transformed into sources of knowledge for the adherent of the doctrine of Descent . The ...
Стр. 36
... become aware of these deviations from so - called laws of form and structure , seemingly well established , we are prepared for a manifest failure of the system , in regard to con- necting forms , and forms of uncertain position in the ...
... become aware of these deviations from so - called laws of form and structure , seemingly well established , we are prepared for a manifest failure of the system , in regard to con- necting forms , and forms of uncertain position in the ...
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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.