| Charles Darwin - 1866 - عدد الصفحات: 668
...valleys or to the formation of the longest lines of inland cliff's. Natural selection can act only by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being; and as modern geology has almost banished such views as the excavation of a great valley by a single... | |
| 1874 - عدد الصفحات: 532
...unfavorable specimens not selected by nature, but they are destroyed. This is what Mr. Darwin calls " Natural Selection," which " acts by the preservation...imaginary, but with true causes ; nor can we fail to diicern what vast modifications may be produced by natural selection in periods sufficiently long.... | |
| Sir Norman Lockyer - 1874 - عدد الصفحات: 562
...unfavourable specimens not selected by nature, but they are destroyed. This is what Mr. Darwin calls "natural selection," which "acts by the preservation...is here dealing, not with imaginary, but with true cause; ; nor can we fail to discern what vast modifications may be produced by natural selection in... | |
| 1875 - عدد الصفحات: 360
...favourable quality has been transmitted in excess will assuredly trinmph. This is what Mr. Darwin calls " Natural Selection," which " acts by the preservation...modifications, each profitable to the preserved being." If Darwin, like Bruno, rejects the notion of creative power acting after human fashion, it certainly... | |
| Robert Fowler - 1875 - عدد الصفحات: 586
...working out this selection, and во fixing and augmenting these improvments. A condition of Nature which acts by the preservation and accumulation of...modifications, each profitable to the preserved being. — Darwin, Na'turalist (L. natura, nature). One that studies, or is versed iu, Natural History. Naturalized... | |
| Charles Darwin - 1875 - عدد الصفحات: 504
...of the deepest valleys or the formation of long lines of inland cliffs. Natural selection acts only by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being ; and as nv.dern geology has almost banished such views as the excavation of a great valley by a single... | |
| John Tyndall - 1876 - عدد الصفحات: 706
...unfavourable specimens not selected by nature, but they are destroyed. This is what Mr. Dai-win calls ' Natural Selection,' which ' acts by the preservation...interpenetrates and leavens the vast store of facts that be and others have collected. We cannot, without shutting our eyes through fear or prejudice, fail... | |
| Alexander Wilford Hall - 1877 - عدد الصفحات: 546
...the preservation and accumulation of variations which are beneficial. " " Natural selection acts only by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." — Origin of Sptciet, pp. 75, 97. Now, how simple a process it proves to be to "break down" this theory... | |
| Alexander Wilford Hall - 1880 - عدد الصفحات: 544
...preservation and accumulation of variations which are beneficial." ' ' Natural selection acts only\ry the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." — Origin of Species, pp. 75, 97. Now, how simple a process it proves to be to "break down" this theory... | |
| Alexander Wilford Hall - 1883 - عدد الصفحات: 552
...having tome advantage over other forms in the struggle for existence." "Natural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to tAe preserved teiitg." — Origin of Species, pp. 75, 96. Then, it is clear, since it would not profit... | |
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