The Doctrine of Descent and DarwinismD. Appleton, 1875 - 334 من الصفحات |
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الصفحة 3
... causes is concerned , they would wish to deny point - blank the possibility of such ex- planation or such knowledge , and to refer life to an unapproachable and mystic domain . Or , if the solu- tion of the problem of life be admitted ...
... causes is concerned , they would wish to deny point - blank the possibility of such ex- planation or such knowledge , and to refer life to an unapproachable and mystic domain . Or , if the solu- tion of the problem of life be admitted ...
الصفحة 5
... 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 bats , le- murs , and apes , without , on that account ...
... 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 bats , le- murs , and apes , without , on that account ...
الصفحة 8
... causes and effects , the knowledge of which , therefore , leads at once to results satisfactory and tranquillizing to the mind . This description , at first limited to the exterior , was gradually extended to the interior , because ...
... causes and effects , the knowledge of which , therefore , leads at once to results satisfactory and tranquillizing to the mind . This description , at first limited to the exterior , was gradually extended to the interior , because ...
الصفحة 10
... cause of the fact does not as yet appear . The next 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 ...
... cause of the fact does not as yet appear . The next 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 ...
الصفحة 11
... causes , and this all the more urgently be- cause their relations , though as yet hidden , are rendered more probable by a third series of phenomena , the conquest of which is likewise the achievement of natural history . We allude to ...
... causes , and this all the more urgently be- cause their relations , though as yet hidden , are rendered more probable by a third series of phenomena , the conquest of which is likewise the achievement of natural history . We allude to ...
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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.