The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 7
... latter is shrouded in a veil which never can be raised , as is even now so frequently asserted , then , indeed , all research directed towards the comprehension of life would be utterly vain and hopeless . But if the possibility of ...
... latter is shrouded in a veil which never can be raised , as is even now so frequently asserted , then , indeed , all research directed towards the comprehension of life would be utterly vain and hopeless . But if the possibility of ...
Стр. 9
... me- tatarsus , the latter of which affords attachment to the FIG . I. m n toes , we find only the long bone c , and at its lower extremity a small bone supporting the four toes . Earlier COMPARATIVE ANATOMY AND EVOLUTION . 9.
... me- tatarsus , the latter of which affords attachment to the FIG . I. m n toes , we find only the long bone c , and at its lower extremity a small bone supporting the four toes . Earlier COMPARATIVE ANATOMY AND EVOLUTION . 9.
Стр. 35
... latter merge , as might be imagined , into the reptiles . The birds , on their side , offer a sharp contrast to the mammals , and this separa- tion and divergence extend to all the subdivisions . We must figuratively represent family ...
... latter merge , as might be imagined , into the reptiles . The birds , on their side , offer a sharp contrast to the mammals , and this separa- tion and divergence extend to all the subdivisions . We must figuratively represent family ...
Стр. 41
... latter , meanwhile , preserving its individuality wholly or for the greater part , and yet being able to transfer to the progeny its own characteristics in their full integrity . The simplest case of gemmation is where the parent animal ...
... latter , meanwhile , preserving its individuality wholly or for the greater part , and yet being able to transfer to the progeny its own characteristics in their full integrity . The simplest case of gemmation is where the parent animal ...
Стр. 66
... latter ( that is to say , with the productive carboniferous strata ) , were seized with an opposite movement , and therefore sank , there would be deposited on the surface now again gradually becoming the bed of the sea , precisely ...
... latter ( that is to say , with the productive carboniferous strata ) , were seized with an opposite movement , and therefore sank , there would be deposited on the surface now again gradually becoming the bed of the sea , precisely ...
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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.