Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - Всего страниц: 351 |
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Стр. 3
... placed in an inclined position in a glass of water in the dark , the extremity will , in a few hours , bend upward ; and , if the position of the shoot be then . reversed , the downward - bent shoot reverses its curvature ; but if the ...
... placed in an inclined position in a glass of water in the dark , the extremity will , in a few hours , bend upward ; and , if the position of the shoot be then . reversed , the downward - bent shoot reverses its curvature ; but if the ...
Стр. 14
... placed in different parts of the same com- pound or simple individual , should not perform their functions equally well as when placed in two distinct in- dividuals . In some instances the sexes may have been reseparated for the sake of ...
... placed in different parts of the same com- pound or simple individual , should not perform their functions equally well as when placed in two distinct in- dividuals . In some instances the sexes may have been reseparated for the sake of ...
Стр. 24
... mov- ing either upward or downward . But in almost every case the plane of the blade is so placed as to stand nearly or quite vertically at night . Therefore the apex , 24 DARWINISM STATED BY DARWIN HIMSELF . The Sleep of the Plants.
... mov- ing either upward or downward . But in almost every case the plane of the blade is so placed as to stand nearly or quite vertically at night . Therefore the apex , 24 DARWINISM STATED BY DARWIN HIMSELF . The Sleep of the Plants.
Стр. 28
... placed in an obscure part of a room , and all the cotyle- dons rose up closed ; another pot had stood in the sun- light , and the cotyledons of course remained expanded ; 28 DARWINISM STATED BY DARWIN HIMSELF . Influence of Light upon ...
... placed in an obscure part of a room , and all the cotyle- dons rose up closed ; another pot had stood in the sun- light , and the cotyledons of course remained expanded ; 28 DARWINISM STATED BY DARWIN HIMSELF . Influence of Light upon ...
Стр. 29
... placed close together in the middle . of the room , and the cotyledons which had been exposed to the sun immediately began to close , while the others opened ; so that the cotyledons in the two pots moved in exactly opposite directions ...
... placed close together in the middle . of the room , and the cotyledons which had been exposed to the sun immediately began to close , while the others opened ; so that the cotyledons in the two pots moved in exactly opposite directions ...
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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