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" 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 differs, more or less, from the same part in the parents. "
The American Naturalist - Page 81
1909
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The Wesleyan-Methodist Magazine

1876 - 1204 pages
...become plastic, and tends to depart in some small degree from that of the parental tpye." (P. 12.) " 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 differs, more or less,...
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On the Origin of Species by Means of Natural Selection; Or, The Preservation ...

Charles Darwin - 1861 - 470 pages
...but had been created in stone so as to mock the shells now living on the sea-shore. Swrmmoury. — 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 differs, more or less,...
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The Natural History Review, Issues 13-16

1864 - 746 pages
...useful, or hurtful, or indifferent.' On the contrary, Mr. Darwin writes (Summary of Chap. V.): — " Our ignorance of the laws of variation is profound. Not in one case out of » hundred can we pretend to assign any reason why this or that part varies more or less...
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On the Origin of Species by Means of Natural Selection: Or, The Preservation ...

Charles Darwin - 1864 - 472 pages
...lived, but had been created in stone so as to mock the shells now living on the sea-shore. Summary. — 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 differs, more or less,...
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The Problem of Human Life: Embracing the "evolution of Sound" and "evolution ...

Alexander Wilford Hall - 1880 - 544 pages
...of different animals entertained by as great and careful a student of Nature as Mr. Darwin: — - ' 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 form has varied." "With...
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Theism and Evolution: An Examination of Modern Speculative Theories as ...

Joseph Smith Van Dyke - 1886 - 494 pages
...producing variations, for the causes of modifications are pronounced inexplicable. This is conceded: — "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 form has varied." . . ....
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Christian Thought, Volume 1

1886 - 436 pages
...either " simultaneously or one after the other," but in what order or why we cannot tell. Finally, " 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." The conclusion...
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Select Works of Thomas H. Huxley

Thomas Henry Huxley - 1886 - 350 pages
...either useful, or hurtful, or indifferent. On the contrary, Mr. Darwin writes (Summary of Chap. V.) : " Our ignorance of the laws of variation is profound. Not in one case out of a hundred enn we p'etcnd to assign nny ieneon why this or that patt varies more or less...
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The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and ..., Volume 24

Thomas Spencer Baynes - 1890 - 926 pages
...variation, and from those (xxii.-xxvi.) of the larger worlc which contain an ample yet similar discussion. "Our ignorance of the laws of variation is profound. Not in one case out of • hundred can we pretend to assign any reason why this or that part has varied." Changed...
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Encyclopædia Britannica: Americanized Encyclopædia Britannica, Volume 10

1890 - 1466 pages
...variation, and from those (xxii.-xxvi.) of the larger work which contain an ample yet 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...
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