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Libros Libros 1 - 10 de 70 sobre Why should not Nature take a sudden leap from structure to structure ? On the theory...
" Why should not Nature take a sudden leap from structure to structure ? On the theory of natural selection, we can clearly understand why she should not; for natural selection acts only by taking advantage of slight successive variations ; she can never... "
The Problem of Human Life: Embracing the "evolution of Sound" and "evolution ... - Página 500
por Alexander Wilford Hall - 1883 - 524 páginas
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Christian Reformer, Volumen1

1886
...structure to structure ? On the theory of Natural Selection, we can clearly see why she should not ; for Natural Selection acts only by taking advantage of...successive variations ; she can never take a great, sudden leap, but must advance by short and sure, though slow, steps." If we ask Mr. Danvin once more...
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The Quarterly Review, Volumen131

1871
...third edition of his ' Origin of Species ' the following passages : — ' Natural selection can act only by taking advantage of slight successive variations ; she can never take a leap, but must advance by short and slow steps ' (p. 214). Again he says : — ' If it could be demonstrated...
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The Living Age ..., Volumen111

1871
...doubtless form a landmark in the domain of zoological science sages : — " Natural selection can act only by taking advantage of slight successive variations ; she can never take a leap, but must advance by short and slow steps" (p. 214). Again he says: — "If it could be demonstrated...
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On the Origin of Species by Means of Natural Selection; Or, The Preservation ...

Charles Darwin - 1861 - 440 páginas
...of natural selection, we can clearly understand why she should not ; for natural selection can act only by taking advantage of slight successive variations ; she can never take a leap, but must advance by the shortest and slowest steps. Organs of little apparent importance. —...
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On the Origin of Species by Means of Natural Selection: Or, The Preservation ...

Charles Darwin - 1864 - 440 páginas
...of natural selection, we can clearly understand why she should not ; for natural selection can act only by taking advantage of slight successive variations ; she can never take a leap, but must advance by the shortest and slowest steps. ' Organs of little apparent importance. —...
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On the Origin of Species by Means of Natural Selection: Or The Preservation ...

Charles Darwin - 1866 - 593 páginas
...structure ? On the theory of natural selection, we can clearly understand why she should not ; for natural selection acts only by taking advantage of...slight successive variations ; she can never take a sudden leap, but must advance by short and sure though slow steps. Organs of little apparent Importance,...
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The London Quarterly Review, Volúmenes130-131

1871
...third edition of his ' Origin of Species ' the following passages : — ' Natural selection can act only by taking advantage of slight successive variations; she can never take a leap, but must advance by short and slow steps' (p. 214). Again he says : — ' If it could be demonstrated...
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The Quarterly Review, Volumen131

1871
...third edition of his ' Origin of Species ' the following passages : — ' Natural selection can act only by taking advantage of slight successive variations ; she can never take a leap, but must advance by short and slow steps ' (p. 214). Again he says : — ' If it could be demonstrated...
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The Ecclesiastical Observer, Volumen24

1871
...third edition of his ' Origin of Species ' the following passages : — ' Natural selection can act only by taking advantage of slight successive variations ; she can never take a leap, but must advance by short and slow steps.' — (p. 214.) Again, he says — ' If it could be...
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Proceedings of the American Philosophical Society Held at ..., Volumen12

American Philosophical Society - 1873
...forms of life, into all the elaborate classification in which we now behold it. Thus, Darwin says, "Natural selection acts only by taking advantage of...slight successive variations ; she can never take a sudden leap, but must advance by short and sure, though slow, steps." Ib. 190. " New variations are...
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