Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - Всего страниц: 351 |
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Стр. 3
... Extremely slight pressure often suffices . If the pressure be not permanent , the part in question straight- ens itself and is again ready to bend on being touched . 6. Tendrils , soon after clasping a support , but not after a mere ...
... Extremely slight pressure often suffices . If the pressure be not permanent , the part in question straight- ens itself and is again ready to bend on being touched . 6. Tendrils , soon after clasping a support , but not after a mere ...
Стр. 33
... extremely viscid , is not acid or only slightly so , but that it becomes acid , or much more strongly so , after the tentacles have begun to bend over any inorganic or organic object ; and still more strongly acid after the tentacles ...
... extremely viscid , is not acid or only slightly so , but that it becomes acid , or much more strongly so , after the tentacles have begun to bend over any inorganic or organic object ; and still more strongly acid after the tentacles ...
Стр. 42
... extremely long . Page 308 . THEY PRESERVE VALUABLE RUINS . . Archæologists ought to be grateful to worms , as they protect and preserve for an indefinitely long period every object , not liable to decay , which is dropped on the surface ...
... extremely long . Page 308 . THEY PRESERVE VALUABLE RUINS . . Archæologists ought to be grateful to worms , as they protect and preserve for an indefinitely long period every object , not liable to decay , which is dropped on the surface ...
Стр. 45
... extremely complicated movements and by the shortest course . With animals , actions appearing due to intelligence may be performed through inherited habit without any intelligence , although aboriginally thus acquired . Or the habit may ...
... extremely complicated movements and by the shortest course . With animals , actions appearing due to intelligence may be performed through inherited habit without any intelligence , although aboriginally thus acquired . Or the habit may ...
Стр. 56
... extremely improbable it allows nothing for variation ; it passes over the almost monstrous character of some of the breeds ; and it almost necessarily assumes that a large number of species have become extinct since man domes- ticated ...
... extremely improbable it allows nothing for variation ; it passes over the almost monstrous character of some of the breeds ; and it almost necessarily assumes that a large number of species have become extinct since man domes- ticated ...
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acquired action admit allied apes appear Asa Gray become believe birds blush body breeds Catarrhine cause characters closely Cloth Darwin degree descended developed distinct species domestic doubt early effects eggs existence expression extinct eyes fact favorable feel females fertilization forms gemmules genera geotropism habit hair HERBERT SPENCER hermaphrodites highly horse Illustrations increase individuals inhabitants inherited insects instance intermediate islands kind labellum lancelet language larvæ less living lower animals males mammals manner ment mental mind modified monkeys movements muscles natural selection naturalists observed offspring organic Origin of Species papillæ parent peculiar period plants pollen possess present principle probably produced Professor progenitors Quadrumana quadrupeds races remarkable resemble rudimentary savages seeds seems seen sexes sexual selection slight South America structure suppose T. H. HUXLEY tend tendency tion transmitted utricle variability variations varieties various vertebræ whole wild worms young