The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 10
... example is rather more difficult . With- out the history of development , comparative anatomy is incapable of explaining why man possesses three little bones in the auditory apparatus , the bird only one . The history of development ...
... example is rather more difficult . With- out the history of development , comparative anatomy is incapable of explaining why man possesses three little bones in the auditory apparatus , the bird only one . The history of development ...
Стр. 19
... example just given of animal heat , let us observe that modern physics have learnt to know heat as a peculiar mode of motion . The motion . of the hammer as it falls upon the anvil is not lost , but is transformed into the atomic motion ...
... example just given of animal heat , let us observe that modern physics have learnt to know heat as a peculiar mode of motion . The motion . of the hammer as it falls upon the anvil is not lost , but is transformed into the atomic motion ...
Стр. 34
... examples ; the most superficial com- parison of a fish with a bird or a mammal , of one of the parasitic crustacea with a crayfish or an insect , shows , as the older zoology represented it , that in the actual forms the ground plan ...
... examples ; the most superficial com- parison of a fish with a bird or a mammal , of one of the parasitic crustacea with a crayfish or an insect , shows , as the older zoology represented it , that in the actual forms the ground plan ...
Стр. 35
... example . Even with the fishes we fall into great perplexity ; which to place at the end as being the highest . But take which we will , the sharks or our teleostei , the am- phibians cannot be annexed in a direct line , nor does the ...
... example . Even with the fishes we fall into great perplexity ; which to place at the end as being the highest . But take which we will , the sharks or our teleostei , the am- phibians cannot be annexed in a direct line , nor does the ...
Стр. 38
... Example after example might be thus accumulated to show that the rigid partitions of the system are scarcely raised before they are again broken down in every direction ; and this in direct ratio with the increase of special science ...
... Example after example might be thus accumulated to show that the rigid partitions of the system are scarcely raised before they are again broken down in every direction ; and this in direct ratio with the increase of special science ...
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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.