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" I am aware that my view is merely a provisional hypothesis or speculation ; but until a better one be advanced, it will serve to bring together a multitude of facts which are at present left disconnected by any efficient cause. "
Charles Darwin's Works: The variation of animals and plants under ... - 第 214 頁
Charles Darwin 著 - 1896
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The Anthropological Review, 第 8 卷

1870 - 452 頁
...too much nor too little added ; how the various modes of reproduction are connected, and so forth. I am aware that my view is merely a provisional hypothesis...speculation ; but, until a better one be advanced, it may be serviceable by bringing together a multitude of facts which are at present left disconnected...
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Journal of Anthropology, 第 1-3 期

1871 - 558 頁
...too much nor too little added ; how the various modes of reproduction are connected, and so forth. I am aware that my view is merely a provisional hypothesis...speculation ; but, until a better one be advanced, it may be serviceable by bringing together a multitude of facts which are at present left disconnected...
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The Anthropological Review, 第 8 卷

1870 - 846 頁
...too much nor too little added ; how the various modes of reproduction are connected, and so forth. 1 am aware that my view is merely a provisional hypothesis or speculation ; but, until a better one 1« advanced, it may be serviceable by bringing together a multitude of facts which are at present...
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The Variation of animals and plants under domestication v. 2, 第 2 卷

Charles Darwin - 1876 - 544 頁
...tho course of its development through the most complex metamorphoses, and tho other does not do RO, though when mature both are alike in every detail of structure. I am aware that my view IB merely a provisional hypothesis or speculation ; but until a better one be advanced, it will serve...
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The Variation of Animals and Plants Under Domestication, 第 2 卷

Charles Darwin - 1887 - 528 頁
...in the course of its development through the most complex metamorphoses, and the other does not do so, though when mature both are alike in every detail...merely a provisional hypothesis or speculation; but 37 until a bettor one be advanced, it will servo to bring together a multitude of facts which are at...
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The Variation of Animals and Plants Under Domestication, 第 2 卷

Charles Darwin - 1890 - 532 頁
...in the course of its development through the most complex metamorphoses, and the other does not do so, though when mature both are alike in every detail...provisional hypothesis or speculation ; but until a bettor one be advanced, it will serve to bring together a multitude of facts which are at present left...
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Darwinism and Race Progress

John Berry Haycraft - 1895 - 206 頁
...of 800 pages. Darwin here says (vol. ii., p. 349): " I am aware that my view is merely a provincial hypothesis or speculation ; but until a better one...present left disconnected by any efficient cause." Weismann's speculations, equally unfounded on fact, are nevertheless viewed by him as being of sufficient...
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The Variation of Animals and Plants Under Domestication, 第 2 卷

Charles Darwin - 1898 - 522 頁
...in the course of its developmont through the most complex metamorphoses, and the other does not do so, though when mature both are alike in every detail...cause. As Whewell, the historian of the inductive Kciences, remarks : — " Hypotheses may often be of service to " science, when they involve a certain...
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Evolution and Adaptation

Thomas Hunt Morgan - 1903 - 498 頁
...in the course of its development through the most complex metamorphoses, and the other does not do so, though when mature both are alike in every detail...present left disconnected by any efficient cause." In presenting the hypothesis of pangenesis Darwin begins by enumerating the different kinds of sexual...
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Darwinism and Race Progress

John Berry Haycraft - 1908 - 204 頁
...Heredity, op. cit., p. 77. at the end of a large work of 800 pages. Darwin here says (vol. ii., p. 349) : " I am aware that my view is merely a provisional hypothesis...present left disconnected by any efficient cause." Weismann's speculations, equally unfounded on fact, are nevertheless viewed by him as being of sufficient...
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