Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - Всего страниц: 351 |
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Стр. ix
... Female Plants Effect of Climate on Reproduction Causes of Sterility among Plants An " Ideal Type " or Inevitable Modification Special Adaptations to a Changing Purpose An Illustration 4 6 6 8 9 9 11 12 14 15 16 17 18 19 21 Interposition ...
... Female Plants Effect of Climate on Reproduction Causes of Sterility among Plants An " Ideal Type " or Inevitable Modification Special Adaptations to a Changing Purpose An Illustration 4 6 6 8 9 9 11 12 14 15 16 17 18 19 21 Interposition ...
Стр. xiii
... Females Courtship among the Lower Animals · Why the Male plays the more Active Part in Courting Transmission of Sexual Characteristics 236 237 239 • 240 An Objection answered 242 Difference between the Sexes created by Sexual Selection ...
... Females Courtship among the Lower Animals · Why the Male plays the more Active Part in Courting Transmission of Sexual Characteristics 236 237 239 • 240 An Objection answered 242 Difference between the Sexes created by Sexual Selection ...
Стр. 13
... female ; and the other , which is often smaller and more locomotive , may be called the male ; though these sexual names ought hardly to be applied as long as the whole contents of the two forms are blended into one . The object gained ...
... female ; and the other , which is often smaller and more locomotive , may be called the male ; though these sexual names ought hardly to be applied as long as the whole contents of the two forms are blended into one . The object gained ...
Стр. 14
... female glands , when 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 ...
... female glands , when 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 ...
Стр. 15
... FEMALE The Differ- ent Forms of Flowers , page 290 . PLANTS . Thirteen bushes ( of the spindle - tree ) grow- ing ... females were well covered with fruit , excepting one which bore only a moderate number . Of the five hermaphrodites ...
... FEMALE The Differ- ent Forms of Flowers , page 290 . PLANTS . Thirteen bushes ( of the spindle - tree ) grow- ing ... females were well covered with fruit , excepting one which bore only a moderate number . Of the five hermaphrodites ...
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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