The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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... ANIMALS IN THE LIGHT OF THE DOCTRINE OF DERIVATION • XI . THE PEDIGree of VerTEBRATE ANIMALS . MAN XII . 195 222 248 282 : 311 REFERENCES AND QUOTATIONS • LIST OF ILLUSTRATIONS . FIG . I. LEGS OF BIRD viii CONTENTS .
... ANIMALS IN THE LIGHT OF THE DOCTRINE OF DERIVATION • XI . THE PEDIGree of VerTEBRATE ANIMALS . MAN XII . 195 222 248 282 : 311 REFERENCES AND QUOTATIONS • LIST OF ILLUSTRATIONS . FIG . I. LEGS OF BIRD viii CONTENTS .
Стр. 36
... vertebrate animals , like the auditory appa- ratus , and the notochord , is , even if only transiently , a possession of the Ascidians , a class of animals which in their mature condition do not bear the remotest re- semblance to the ...
... vertebrate animals , like the auditory appa- ratus , and the notochord , is , even if only transiently , a possession of the Ascidians , a class of animals which in their mature condition do not bear the remotest re- semblance to the ...
Стр. 49
... vertebrate animals in particular , the further we go back in the history of their development , the more do we find the embryos alike , both on the whole and in the individual parts . " Only gradually do the characters appear which mark ...
... vertebrate animals in particular , the further we go back in the history of their development , the more do we find the embryos alike , both on the whole and in the individual parts . " Only gradually do the characters appear which mark ...
Стр. 58
... vertebrate animal is originally a fish . " 10 We have been somewhat faithless to our intention of confining ourselves in this chapter to facts only . The facts are too apt to provoke reflections , and we have , moreover , repeated these ...
... vertebrate animal is originally a fish . " 10 We have been somewhat faithless to our intention of confining ourselves in this chapter to facts only . The facts are too apt to provoke reflections , and we have , moreover , repeated these ...
Стр. 75
... vertebrate bodies are directly connected with the sea - lizards of the Jura , and also possess teeth ; this may , however , be the case with the Archeopteryx also . We shall return later to these creatures , which fill up a void ...
... vertebrate bodies are directly connected with the sea - lizards of the Jura , and also possess teeth ; this may , however , be the case with the Archeopteryx also . We shall return later to these creatures , which fill up a void ...
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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.