The Doctrine of Descent and DarwinismH. S. King, 1876 - 334 ページ |
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according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds bone brain 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 gemmules genera genus geological Goethe grade gradually groups Haeckel heredity higher horse hypothesis idea individual infer intermediate forms islands lancelet language larva larvæ likewise linguistic lower mammals manifest Marsupials Medusa ment merely metamorphosis modifications morphological mutability natural selection naturalist observations organisms origin ovum peculiar pedigree perfect period phase phenomena placenta plants polypes possess present primordial progenitors races regard relations remains reproduction reptiles resemblance Rütimeyer says scarcely separate sexual Silurian skull species strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition Ungulata Ungulates varieties vertebral column Vertebrata vertebrate animals whole
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162 ページ - 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...
145 ページ - It may metaphorically be said that natural selection is daily and hourly scrutinizing, throughout the world, the slightest variations; rejecting those that are bad, preserving and adding up all that are good; silently and insensibly working, whenever and wherever opportunity offers, at the improvement of each organic being in relation to its organic and inorganic conditions of life.
316 ページ - Tout ce que la nature a fait acquérir ou perdre aux individus par l'influence des circonstances où leur race se trouve depuis longtemps exposée, et par conséquent, par l'influence de l'emploi prédominant de tel organe, ou par celle d'un défaut constant d'usage de telle partie ; elle le conserve par la génération aux nouveaux individus qui en proviennent, pourvu que les changements acquis soient communs aux deux sexes, ou à ceux qui ont produit ces nouveaux individus.
160 ページ - 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.
82 ページ - Was sucht ihr, mächtig und gelind, Ihr Himmelstöne, mich am Staube? Klingt dort umher, wo weiche Menschen sind! Die Botschaft hör ich wohl, allein mir fehlt der Glaube; Das Wunder ist des Glaubens liebstes Kind. Zu jenen Sphären wag...
160 ページ - 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.