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도서 Our ignorance of the laws of variation is profound. Not in one case out of a hundred...에 대해 검색한 75개 도서 중 21 - 30
" Our ignorance of the laws of variation is profound. Not in one case out of a hundred can we pretend to assign any reason why this or that part varies more or less from the same part in the parents . . . The external conditions of life, as climate and... "
The Natural History Review - 566 페이지
1864
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Encyclopædia Britannica: Americanized Encyclopædia Britannica, 10권

1890
...similar discussion. " Our ignorance of the laws of variation is profound. Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied." Changed conditions generally induce mere fluctuating variability in individuals, yet sometimes...
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The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and ..., 24권

1890
...similar discussion. "Our ignorance of the laws of variation is profound. Not in on« case ont of a hundred can we pretend to assign any reason why this or that part haa varied." Changed conditions generally ЕЩ induce mere fluctuating variability in individuals,...
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Opposites: A Series of Essays on the Unpopular Sides of Popular Questions

Lewis Thornton - 1890 - 380 페이지
...so during past ages." " Our ignorance of the laws of variation is profound. Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied." " Long before the reader has arrived at this part of my work, a crowd of difficulties...
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Evolution in Religion

William Ward McLane - 1892 - 266 페이지
..." Our ignorance of the laws of variation," says Mr. Darwin, " is profound. Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied." 1 Some prenatal changes can be accounted for 1Origin of Species, p. 131. by the mental...
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Darwiniana: Essays

Thomas Henry Huxley - 1894 - 475 페이지
...of variation is profound. Not in one case out of a hundred can we pretend to assign any reason w!iy this or that part varies more or less from the same...diminishing organs, seem to have been more potent in their effects." And finally, as if to prevent all possible misconception, Mr. Darwin concludes his Chapter...
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Charles Darwin's Works: The origin of species by means of natural selection ...

Charles Darwin - 1896
...sea-shore. Summary. — Our ignorance of the laws of variation is j.rofouud. Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied. But whenever we have the means of instituting a comparison, the same laws appear to have...
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The Origin of Species by Means of Natural Selection, Or, The ..., 1권

Charles Darwin - 1896
...sea-shore. Summary. — Our ignorance of the laws of variation is j.rofound. Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied. But whenever we have the means of instituting a comparison, the same laws appear to have...
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On the Origin of Species by Means of Natural Selection, Or, The Preservation ...

Charles Darwin - 1902 - 454 페이지
...differences between species of the same genus. The external conditions of life, as climate and food, etc., seem to have induced some slight modifications. Habit...diminishing organs, seem to have been more potent in their effects. Homologous parts tend to vary in the same way, and homologous parts tend to cohere. Modifications...
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Lay Sermons, Addresses and Reviews

Thomas Henry Huxley - 1903 - 378 페이지
...(Summary of Chap. V.) :— " Our ignorance of the laws of variation is profound. Not in one case out of a hundred can we pretend to assign any reason why this...in weakening and diminishing organs, seem to have becii more potent in their effects." And finally, as if to prevent all possible misconception, Mr....
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The Encyclopedia Americana, 16권

Frederick Converse Beach, George Edwin Rines - 1904
...Charles Darwin, who said : "Our ignorance of the laws of variation is profound. Not in one case out of a hundred can we pretend to assign any reason why this or that part has varied." Consult the works of Charles Darwin, Lamarck, Weismann, and Wallace (qq.v.) ; also Bateson,...
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