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" All the foregoing rules and aids and difficulties in classification are explained, if I do not greatly deceive myself, on the view that the natural system is founded on descent with modification; that the characters which naturalists consider as showing... "
General Zoölogy: Practical, Systematic and Comparative; Being a Revision and ... - Стр. 466
авторы: James Orton, Charles Wright Dodge - 1903 - Страниц: 512
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The Quarterly Journal of the Geological Society of London, Том 83

Geological Society of London - 1928 - Страниц: 1090
...descent with modification ; that the characters which naturalists consider as showing true affinity . . . are those which have been inherited from a common parent, and, in so far, all true classification is genealogical ; that community of descent is the hidden bond which naturalists have...
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On the Origin of Species by Means of Natural Selection; Or, The Preservation ...

Charles Darwin - 1861 - Страниц: 470
...modification ; that the characters which naturalists consider a& showing true affinity between any two or more species, are those which have been inherited from a common parent, and, in so far, all true classification is genealogical ; that community of descent is the hidden bond which naturalists have...
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On the Origin of Species by Means of Natural Selection: Or, The Preservation ...

Charles Darwin - 1864 - Страниц: 472
...modification ; that the characters which naturalists consider as showing true affinity between any two or more species, are those which "have been inherited from a common parent, and, in so far, all true classification is genealogical ; that community of descent is the hidden bond which naturalists have...
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On the origin of species by means of natural selection ; or, The ...

Charles Darwin - 1875 - Страниц: 504
...modification ; — that the characters which naturalists consider as showing true affinity between any two or more species, are those which have been inherited from a common parent, all true classification being genealogical; — that community of descent is the hidden bond which...
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Comparative zoology

James Orton - 1876 - Страниц: 594
[ Извините, доступ к содержанию этой страницы ограничен. ]
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Comparative Zoology: Structural and Systematic for Use in Schools and Colleges

James Orton - 1877 - Страниц: 418
...i38 It is, however, true that the number of eggs laid is proportioned to the risk in development. i39 According to Mr. Darwin, the characters which naturalists consider as showing true affinity between any two or more species are those which have been inherited from a common parent, and, in so far, all...
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Comparative Zoology: Structural and Systematic : for Use in Schools and Colleges

James Orton - 1879 - Страниц: 412
...According to Mr. Darwin, the characters which naturalists cousider as showing true affinity between any two or more species are those which have been inherited from a common parent, and, in so far, all true classification is genealogical ; ie, it is not a mere grouping of like with like, but it includes like...
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Comparative Zoology: Structural and Systematic, for Use in Schools and Colleges

James Orton - 1884 - Страниц: 434
...'" It is, however, true that the number of eggs laid is proportioned to the risk in development. "* According to Mr. Darwin, the characters which naturalists...inherited from a common parent ; and, in so far, all true classification is genealogical; ». e., it is not a mere grouping of like with like, but it includes...
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Comparative zoology

James Orton - 1883 - Страниц: 462
...It is, however, true that the number of eggs laid is proportioned to the risk in development. '-• According to Mr. Darwin, the characters which naturalists...more species are those which have been inherited from n common parent ; and, in so far, all true classification is genealogical ; ie, it is not a mere grouping...
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Comparative Zoology: Structural and Systematic, for Use in Schools and Colleges

James Orton - 1884 - Страниц: 434
...to the risk in development. '" According to Mr. Darwin, the characters which naturalists consider ns showing true affinity between two or more species...inherited from a common parent ; and, in so far, all true classification is genealogical ; ie , it is not a mere grouping of like with like, but it includes...
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