The Doctrine of Descent and DarwinismD. Appleton, 1875 - 334 من الصفحات |
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الصفحة
... INDIVIDUAL ( ONTOGENESIS ) IS A RE- PETITION OF THE HISTORICAL DEVELOPMENT OF THE FAMILY ( PHYLOGENESIS ) X. THE GEOGRAPHICAL DISTRIBUTION OF ANIMALS IN THE LIGHT OF THE DOCTRINE OF DERIVATION + XI . The Pedigree of Vertebrate ANIMALS ...
... INDIVIDUAL ( ONTOGENESIS ) IS A RE- PETITION OF THE HISTORICAL DEVELOPMENT OF THE FAMILY ( PHYLOGENESIS ) X. THE GEOGRAPHICAL DISTRIBUTION OF ANIMALS IN THE LIGHT OF THE DOCTRINE OF DERIVATION + XI . The Pedigree of Vertebrate ANIMALS ...
الصفحة 1
... individual . Every system of philosophy has endeavoured to penetrate into the nature of things , and has originated in the attempt to apprehend the coherency of those great series of material and spiritual phenomena , of which man flat ...
... individual . Every system of philosophy has endeavoured to penetrate into the nature of things , and has originated in the attempt to apprehend the coherency of those great series of material and spiritual phenomena , of which man flat ...
الصفحة 2
... individual sciences , or in the sphere of commerce and industry , it is scarcely less wonderful how little certain . or advanced is the opinion of the multitude on general questions . Even now , as much as in the days of Aristophanes ...
... individual sciences , or in the sphere of commerce and industry , it is scarcely less wonderful how little certain . or advanced is the opinion of the multitude on general questions . Even now , as much as in the days of Aristophanes ...
الصفحة 9
... individual parts , may be traced back without difficulty to the anterior extremities of a reptile or a mammal . But the leg of a bird , as a com- plete organ does not har- monize with the leg of other vertebrata until the develop- ment ...
... individual parts , may be traced back without difficulty to the anterior extremities of a reptile or a mammal . But the leg of a bird , as a com- plete organ does not har- monize with the leg of other vertebrata until the develop- ment ...
الصفحة 10
... individuals represent series from the lower to the higher , analogous to the various members existing side by side in the same group of animals , -how , for instance , the mammal passes through stages at which the lower vertebrata ...
... individuals represent series from the lower to the higher , analogous to the various members existing side by side in the same group of animals , -how , for instance , the mammal passes through stages at which the lower vertebrata ...
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عبارات ومصطلحات مألوفة
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
مقاطع مشهورة
الصفحة 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...
الصفحة 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.
الصفحة 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.