The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 22
... probably must be so . For as a body that we feel could not exist unless it consisted of atoms that we do not feel , and as we could not see a motion were it not accompanied by waves of light which we do not see , neither could a complex ...
... probably must be so . For as a body that we feel could not exist unless it consisted of atoms that we do not feel , and as we could not see a motion were it not accompanied by waves of light which we do not see , neither could a complex ...
Стр. 31
... probably ac- quainted , at least with the star - fish ( Asterias ) and the sea - urchin ( Echinus ) , of which the general form is like- wise usually radiate . Besides a peculiar chalky deposit , or greater or less calcification of the ...
... probably ac- quainted , at least with the star - fish ( Asterias ) and the sea - urchin ( Echinus ) , of which the general form is like- wise usually radiate . Besides a peculiar chalky deposit , or greater or less calcification of the ...
Стр. 76
... probably known to all our readers in their representatives the star - fish and sea - urchins . If articulate , as well as vertebrate , animals attain a higher grade of development by the differentiation of the con- secutive segments of ...
... probably known to all our readers in their representatives the star - fish and sea - urchins . If articulate , as well as vertebrate , animals attain a higher grade of development by the differentiation of the con- secutive segments of ...
Стр. 129
... Probably , in consequence of the havoc caused by local floods and earthquakes , a belief in great and universal catastrophes was formed at a very early period ; and to the Indian and Egyptian legends on this subject Lyell appends the ...
... Probably , in consequence of the havoc caused by local floods and earthquakes , a belief in great and universal catastrophes was formed at a very early period ; and to the Indian and Egyptian legends on this subject Lyell appends the ...
Стр. 142
... probably by other parasitic insects . Hence if certain insectivorous birds were to decrease in Para- guay , the parasitic insects would probably increase , and this would lessen the number of the navel - frequenting flies ; then cattle ...
... probably by other parasitic insects . Hence if certain insectivorous birds were to decrease in Para- guay , the parasitic insects would probably increase , and this would lessen the number of the navel - frequenting flies ; then cattle ...
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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.