The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 13
... remains the same weight , its nature is wholly the same , even while in the motion of projection ; and it is utterly unjustifiable and so- phistical to prate about muscular force as a higher power opposed to gravity . If the stone ...
... remains the same weight , its nature is wholly the same , even while in the motion of projection ; and it is utterly unjustifiable and so- phistical to prate about muscular force as a higher power opposed to gravity . If the stone ...
Стр. 32
... remains as a common character , so variegated is the host of smaller scattered groups , and even of single species , which demand admittance to the system of the Vermes . If we attempt to describe their typical nature in a few words ...
... remains as a common character , so variegated is the host of smaller scattered groups , and even of single species , which demand admittance to the system of the Vermes . If we attempt to describe their typical nature in a few words ...
Стр. 33
... remains soft , and characteristically moist and slimy , owing to the secretions of numerous glands contained in it , and has an inclination to lay itself in folds , and form a mantle - like investment to the body . The body therefore ...
... remains soft , and characteristically moist and slimy , owing to the secretions of numerous glands contained in it , and has an inclination to lay itself in folds , and form a mantle - like investment to the body . The body therefore ...
Стр. 44
... remains in the flesh of the pig . It is only when this comes , raw or imperfectly cooked , into the human stomach , that the time has arrived for the release of the pupa . It emerges from its parent the cyst , and the pupa , in which we ...
... remains in the flesh of the pig . It is only when this comes , raw or imperfectly cooked , into the human stomach , that the time has arrived for the release of the pupa . It emerges from its parent the cyst , and the pupa , in which we ...
Стр. 45
... remains naked , and in that case frequently displays the remarkable movements of pro- toplasm . The germ - cells of different classes of animals vary considerably in their microscopic dimensions ; nevertheless , in the whole animal ...
... remains naked , and in that case frequently displays the remarkable movements of pro- toplasm . The germ - cells of different classes of animals vary considerably in their microscopic dimensions ; nevertheless , in the whole animal ...
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Часто встречающиеся слова и выражения
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.