Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - Всего страниц: 351 |
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Стр. viii
... kind . ' Science tells the same story . But what is the limit of the fixedness of the law ? I believe that the evolution of new species is a question in science , and not of religion . It should be left to scientific men . " -President ...
... kind . ' Science tells the same story . But what is the limit of the fixedness of the law ? I believe that the evolution of new species is a question in science , and not of religion . It should be left to scientific men . " -President ...
Стр. 8
... , dry or moist place , or from a different kind of soil containing other organic seeds or inorganic matter . THE STRUGGLE FOR EXISTENCE AMONG SEEDS . Seeds often lie 8 DARWINISM STATED BY DARWIN HIMSELF . Experiments in Crossing.
... , dry or moist place , or from a different kind of soil containing other organic seeds or inorganic matter . THE STRUGGLE FOR EXISTENCE AMONG SEEDS . Seeds often lie 8 DARWINISM STATED BY DARWIN HIMSELF . Experiments in Crossing.
Стр. 9
... kind grow with great vigor , and trans- mit their vigor to their descendants . These , therefore , in the struggle for life , will generally beat and exterminate the seedlings from plants which have long grown near together under the ...
... kind grow with great vigor , and trans- mit their vigor to their descendants . These , therefore , in the struggle for life , will generally beat and exterminate the seedlings from plants which have long grown near together under the ...
Стр. 11
... kind . For instance , plants of Ipomea thus crossed were to the intercrossed plants of the same stock , with which they grew in competition , as 100 to 78 in height , and as 100 to 51 in fertility ; and plants of Eschscholtzia similarly ...
... kind . For instance , plants of Ipomea thus crossed were to the intercrossed plants of the same stock , with which they grew in competition , as 100 to 78 in height , and as 100 to 51 in fertility ; and plants of Eschscholtzia similarly ...
Стр. 17
... kind of union is inefficient , like that between distinct species . Another and still more remark- able incidental result is that the seedlings from an ille- gitimate union are often dwarfed and more or less com- pletely barren , like ...
... kind of union is inefficient , like that between distinct species . Another and still more remark- able incidental result is that the seedlings from an ille- gitimate union are often dwarfed and more or less com- pletely barren , like ...
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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