The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 5
... characteristics , without any scrutiny of the deeper causes of their divergence or similarity , man indisputably occupied the highest grade in the system of living beings . Linnæus places man in the order of Primates , together with ...
... characteristics , without any scrutiny of the deeper causes of their divergence or similarity , man indisputably occupied the highest grade in the system of living beings . Linnæus places man in the order of Primates , together with ...
Стр. 21
... characteristic of matter , as by von Zöllner , in his work on the Nature of Comets , which has created such a justifiable sensation . He holds that , if by means of delicately - formed organs of sensation it were possible to observe the ...
... characteristic of matter , as by von Zöllner , in his work on the Nature of Comets , which has created such a justifiable sensation . He holds that , if by means of delicately - formed organs of sensation it were possible to observe the ...
Стр. 29
... has in common with the forms harmonizing with it in the main characters of their organization ; and , secondly , by the more special characteristics , which place the animal in its own rank and station among its own immediate kindred .
... has in common with the forms harmonizing with it in the main characters of their organization ; and , secondly , by the more special characteristics , which place the animal in its own rank and station among its own immediate kindred .
Стр. 30
... characteristic . peculiarities , as well as the whole of the species united . in it , was termed a " type . " Various views , it is true , even now prevail as to the extent of several of these types or families , as we will already term ...
... characteristic . peculiarities , as well as the whole of the species united . in it , was termed a " type . " Various views , it is true , even now prevail as to the extent of several of these types or families , as we will already term ...
Стр. 31
... characteristic of this family . With these are connected the rows of suckers , which , by protrusion and retraction , serve as organs of locomotion . On account of the radiate structure pre- vailing among the Echinoderms , Medusa , and ...
... characteristic of this family . With these are connected the rows of suckers , which , by protrusion and retraction , serve as organs of locomotion . On account of the radiate structure pre- vailing among the Echinoderms , Medusa , and ...
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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.