Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - Всего страниц: 351 |
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Стр. ix
... Sexes in Plants Why the Sexes have been reseparated Comparative Fertility of Male and Female Plants Effect of Climate on Reproduction Causes of Sterility among Plants An " Ideal Type " or Inevitable Modification Special Adaptations to a ...
... Sexes in Plants Why the Sexes have been reseparated Comparative Fertility of Male and Female Plants Effect of Climate on Reproduction Causes of Sterility among Plants An " Ideal Type " or Inevitable Modification Special Adaptations to a ...
Стр. xiii
... Sexes created by Sexual Selection 243 How Woman could be made to reach the Standard of Man 246 " Characteristic Selfishness of Man " 247 No Universal Standard of Beauty among Mankind 248 Development of the Beard 249 Development of the ...
... Sexes created by Sexual Selection 243 How Woman could be made to reach the Standard of Man 246 " Characteristic Selfishness of Man " 247 No Universal Standard of Beauty among Mankind 248 Development of the Beard 249 Development of the ...
Стр. 12
... SEXES IN PLANTS . Under a theoretical point of view it is some Page 461 . gain to science to know that numberless ... sexes been developed , and why do males exist which can not themselves produce offspring ? The an- swer 12 DARWINISM ...
... SEXES IN PLANTS . Under a theoretical point of view it is some Page 461 . gain to science to know that numberless ... sexes been developed , and why do males exist which can not themselves produce offspring ? The an- swer 12 DARWINISM ...
Стр. 13
... sexes . It is a different question why the two sexes are some- times combined in the same individual , and are sometimes separated . As with many of the lowest plants and ani- mals the conjugation of two individuals , which are either ...
... sexes . It is a different question why the two sexes are some- times combined in the same individual , and are sometimes separated . As with many of the lowest plants and ani- mals the conjugation of two individuals , which are either ...
Стр. 14
... SEXES HAVE BEEN RESEPARATED . It is a more difficult problem why some Page 463 . plants , and apparently all the higher animals , after becoming hermaphrodites , have since had their sexes reseparated . This separation has been ...
... SEXES HAVE BEEN RESEPARATED . It is a more difficult problem why some Page 463 . plants , and apparently all the higher animals , after becoming hermaphrodites , have since had their sexes reseparated . This separation has been ...
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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