The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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... definite deci- sion has to be made between two fundamental alter- natives . May our exposition afford a lucid testimony to this dictum of one of the patriarchs of the philo- sophical view of nature . STRASBURG , October 18th , 1873 ...
... definite deci- sion has to be made between two fundamental alter- natives . May our exposition afford a lucid testimony to this dictum of one of the patriarchs of the philo- sophical view of nature . STRASBURG , October 18th , 1873 ...
Стр. 11
... definite epoch of refrigeration , life appeared in a natural manner , that is to say , without any incomprehensible act of creation ; and during this slow transformation of the earth's crust , we see living beings also gradually ...
... definite epoch of refrigeration , life appeared in a natural manner , that is to say , without any incomprehensible act of creation ; and during this slow transformation of the earth's crust , we see living beings also gradually ...
Стр. 26
... definite form gradually developed , is in our day so inherent and intuitive , that it is only with great exertion that we are able to accommodate our- selves to the idea of a living mass either absolutely formless and undefined , or ...
... definite form gradually developed , is in our day so inherent and intuitive , that it is only with great exertion that we are able to accommodate our- selves to the idea of a living mass either absolutely formless and undefined , or ...
Стр. 40
... definite narrow limits , and why , on attaining a certain extent , the molecules should . gravitate into two halves , we do not know ; at any rate it is an affair of relations of cohesion , theoretically susceptible of computation . It ...
... definite narrow limits , and why , on attaining a certain extent , the molecules should . gravitate into two halves , we do not know ; at any rate it is an affair of relations of cohesion , theoretically susceptible of computation . It ...
Стр. 41
... definite part of the body , and forms a bud or gemmule . We are already acquainted with reproduction by gemmation in the simplest organ- ism , the cell ; for all healing and cicatrization in higher beings , even to the re - integration ...
... definite part of the body , and forms a bud or gemmule . We are already acquainted with reproduction by gemmation in the simplest organ- ism , the cell ; for all healing and cicatrization in higher beings , even to the re - integration ...
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Часто встречающиеся слова и выражения
according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds brain causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryonic Eocene exhibit 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 intermediate forms islands lancelet language larva larvæ likewise linguistic Linnæus 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 sponges strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition true Ungulata Ungulates varieties vegetal 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 - 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.
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.