 | Charles Darwin - 1896 - 406 páginas
...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...variations ; she can never take a great and sudden leap, but must advance by short and sure, though slow steps. Organs of little apparent Importance, as affected... | |
 | Charles Darwin - 1896 - 408 páginas
...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 nevei take a great and sudden leap, but must advance by short and sure, though slow steps. Organs of... | |
 | William Smith Turner - 1904 - 364 páginas
...and emphatic statements, that transformations and changes never occur by "sudden leaps." Darwin says: "Natural selection acts only by taking advantage of...variations; she can never take a great and sudden leap, but must advance by short and sure, though slow steps. ... As natural selection acts solely by accumulating... | |
 | John Jackson (F.E.I.S.) - 1905 - 330 páginas
...selection" has, then, much to answer for. Its mode of working is defined by its great author, who says: " Natural selection acts only by taking advantage of...variations; she (?) can never take a great and sudden leap." " As natural selection acts solely by accumulating slight successive variations, it can produce no... | |
 | Charles Darwin - 1909 - 584 páginas
...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...variations ; she can never take a great and sudden leap, tnrt must advance by short and sure, though slow steps. ORGANS OF LITTLE APPARENT IMPORTANCE, AS AFFECTED... | |
 | Samuel Butler - 1924 - 288 páginas
...theory of natural seleffion we can clearly understand why she should not; for natural selection can aft only by taking advantage of slight successive variations ; she can never take a leap, but muSt advance by the slowest and shortest Steps " (p. 194). Here " the theory of natural selection... | |
 | Samuel Butler - 1924 - 288 páginas
...theory 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, out must advance by the slowest and shortest steps " (p. 194). Here " the theory of natural selection... | |
 | 1873 - 516 páginas
...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 cau never take a sudden leap, but must advance by short and sura though slow steps." " On the theory... | |
 | 1873 - 538 páginas
...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 take a sudden leap, but must advance by short and sure though slow steps." " On the theory of natural selection... | |
 | George Levine - 1991 - 334 páginas
...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...variations; she can never take a great and sudden leap, but must advance by short and sure, though slow steps.35 One of the reasons he can turn the natural... | |
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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... 
