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" Domestication,' there are two factors: namely, the nature of the organism, and the nature of the conditions. The former seems to be much the more important; for nearly similar variations sometimes arise under, as far as we can judge, dissimilar conditions;... "
Animal Life and Intelligence - Page 108
by Conwy Lloyd Morgan - 1891 - 512 pages
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The Origin of Species by Means of Natural Selection: Or, The Preservation of ...

Charles Darwin - Evolution - 1873 - 492 pages
...has lately insisted, and as I have incidentally shown in my work on 'Variation under Domestication,' there are two factors : namely, the nature of the organism, and the nature of the conditioner"The former seems to be much the more important; for nearly similar variations sometimes...
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On the origin of species by means of natural selection ; or, The ...

Charles Darwin - 1875 - 504 pages
...has lately insisted, and as I have incidentally shown in my work on 'Variation under Domestication,' there are two factors : namely, the nature of the organism, and the nature of tho conditions. The former seems to be much the more important ; for nearly similar variations sometimes...
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The Physical basis of mind

George Henry Lewes - 1877 - 584 pages
...established usage, is careful in several places to declare that of the two factors in Variation — the nature of the organism and the nature of the conditions — the former is by far the more important. 118 a. A still greater modification of terms must now be made. Instead...
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On the Origin of Species by Means of Natural Selection: Or, The Preservation ...

Charles Darwin - Evolution - 1882 - 494 pages
...has lately insisted, and as I have incidentally shown in my work on 'Variation under Domestication,' there are two factors : namely, the nature of the...judge, dissimilar conditions ; and, on the other hand, dissimila* variations arise under conditions which appear to be nearly uniform. The effects on the...
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On the Origin of Species: By Means of Natural Selection, Or, the ...

Charles Darwin - Evolution - 1883 - 494 pages
...has lately insisted, and as I have incidentally shown in my work on 'Variation under Domestication,' there are two factors : namely, the nature of the...under conditions which appear to be nearly uniform. The effects on the offspring are either definite or indefinite. They may be considered as definite...
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University of Toronto Quarterly, Volumes 1-3

University of Toronto - Electronic journals - 1895 - 704 pages
...or indirectly through the reproductive system. In the case of direct action there are two factors, the nature of the organism, and the nature of the conditions ; the former being the more important of the two. The effects may be definite or indefinite ; definite, when all...
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Charles Darwin's Works: The origin of species by means of natural selection ...

Charles Darwin - Science - 1896 - 408 pages
...lately insisted, and as I have incidentally shown in my work on ' Variation under Domestication,' ( there are two factors : namely, the nature of the...under conditions which appear to be nearly uniform. The effects on the offspring are either definite or indefinite. They may be considered as definite...
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The Origin of Species by Means of Natural Selection, Or, The ..., Volume 1

Charles Darwin - Evolution - 1896 - 406 pages
...has lately insisted, and as I have incidentally shown in my work on ' Variation under Domestication,' there are two factors : namely, the nature of the...under conditions which appear to be nearly uniform. The effects on the offspring are either definite or indefinite. They may be considered as definite...
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An Introduction to Comparative Psychology

Conway Lloyd Morgan - Psychology - 1896 - 430 pages
...artificial selection is not the result of fortuitous but rather of determinate variation. As Darwin said, " There are two factors : namely, the nature of the...conditions. The former seems to be much the more important." I am therefore disposed to believe that the factor that I have termed selective synthesis is still...
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Selections from "The Origin of Species", "The Descent of Man", "The ...

Charles Darwin - Evolution - 1902 - 238 pages
...has lately insisted, and as I have incidentally shown in my work on "Variation under Domestication," there are two factors; namely, the nature of the organism,...under conditions which appear to be nearly uniform. The effects on the offspring are either definite or indefinite. They may be considered as definite...
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