The Doctrine of Descent and DarwinismD. Appleton, 1897 - 335 páginas |
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Página 3
... tion of the problem of life be admitted in the abstract , at least something peculiar , and a different standard from that by which other living beings may be measured , is required for the beloved Self . If we thus see , on the one ...
... tion of the problem of life be admitted in the abstract , at least something peculiar , and a different standard from that by which other living beings may be measured , is required for the beloved Self . If we thus see , on the one ...
Página 11
... tion , though in many points we must not altogether despair of success . But that the process of palæon- tological development is , in general , the one indicated , is disputed only by naturalists , who , like Barrande , years ago ...
... tion , though in many points we must not altogether despair of success . But that the process of palæon- tological development is , in general , the one indicated , is disputed only by naturalists , who , like Barrande , years ago ...
Página 19
... tion . " For the elucidation of the 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 ...
... tion . " For the elucidation of the 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 ...
Página 24
... tion , take place in particles in a state of saturation - that is to say , soaked in water and aqueous fluids ; and this peculiar , yet purely mechanical condition , suffices for the explanation and comprehension of many of the neces ...
... tion , take place in particles in a state of saturation - that is to say , soaked in water and aqueous fluids ; and this peculiar , yet purely mechanical condition , suffices for the explanation and comprehension of many of the neces ...
Página 27
... tion of animate nature to have become acquainted with bodies which present the simplest structure to the as- sisted eye , and to anatomical research . The substance which characterizes them is found again in plants as well as in animals ...
... tion of animate nature to have become acquainted with bodies which present the simplest structure to the as- sisted eye , and to anatomical research . The substance which characterizes them is found again in plants as well as in animals ...
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Términos y frases comunes
according adaptation already Ammonites Amphibians animal world apes appearance Ascidians birds bone brain causes Cetacea character characteristics comparative anatomy complete connection continent Darwin definite dentition derivation divergent division doctrine of Descent Echinoderms embryonic Eocene exhibit existence external extremely facts families fauna favour fish formation fossil gemmules genera genus geological Goethe grade gradually groups Haeckel heredity higher horse hypothesis idea individual infer intermediate forms islands lancelet language larva larvæ likewise linguistic lower mammals Marsupials Medusa ment merely metamorphosis modifications morphological natural selection naturalist observation Oolite organisms origin Origin of Species ovum peculiar pedigree perfect period phase phenomena placenta plants polypes possess present primordial progenitors races regard relations remains reproduction reptiles resemblance Rütimeyer says scarcely separate sexual skull species strata structure systematic terrestrial animals theory of selection tion transformation Ungulata varieties vegetal vertebral column Vertebrata vertebrate animals whole