The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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... ADAPTATION - RESULTS OF USE AND DISUSE OF ORGANS - DIFFERENTIATION LEADING TO PERFECTION · IX . PAGE · 127 · 165 THE DEVELOPMENT OF THE INDIVIDUAL ( ONTOGENESIS ) IS A RE- PETITION OF THE HISTORICAL DEVELOPMENT OF THE FAMILY ...
... ADAPTATION - RESULTS OF USE AND DISUSE OF ORGANS - DIFFERENTIATION LEADING TO PERFECTION · IX . PAGE · 127 · 165 THE DEVELOPMENT OF THE INDIVIDUAL ( ONTOGENESIS ) IS A RE- PETITION OF THE HISTORICAL DEVELOPMENT OF THE FAMILY ...
Стр. 113
... adapt it . He does not seem to have been aware that Aristotle had affirmed the same , that Nature , if she enlarged an organ , did so only at the expense of another . A second of the supposed fundamental laws discovered by the Frenchman ...
... adapt it . He does not seem to have been aware that Aristotle had affirmed the same , that Nature , if she enlarged an organ , did so only at the expense of another . A second of the supposed fundamental laws discovered by the Frenchman ...
Стр. 116
... adaptation . Greatly as he is inclined to attribute modifications to the effect of external conditions , he speaks with no less decision on the contrary side . " The parts of the animal , their relative form , their conditions , their ...
... adaptation . Greatly as he is inclined to attribute modifications to the effect of external conditions , he speaks with no less decision on the contrary side . " The parts of the animal , their relative form , their conditions , their ...
Стр. 125
... adaptation , but his theories and convictions lack the emphasis of detailed evidence . Yet his subtle apprehension of life may be evinced by his interpretation of instinct . According to him , all acts of instinct are effected by ...
... adaptation , but his theories and convictions lack the emphasis of detailed evidence . Yet his subtle apprehension of life may be evinced by his interpretation of instinct . According to him , all acts of instinct are effected by ...
Стр. 132
... adapted to its place in nature . I began , therefore , to study do- mesticated animals and cultivated plants , and after a time perceived that man's power of selecting and breeding from certain individuals was the most power- ful of all ...
... adapted to its place in nature . I began , therefore , to study do- mesticated animals and cultivated plants , and after a time perceived that man's power of selecting and breeding from certain individuals was the most power- ful of all ...
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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.