 | Charles Darwin - 1866 - 668 páginas
...gigantic 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...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... | |
 | St. George Jackson Mivart - 1871 - 372 páginas
...of natural species in this respect." * In his work on the " Origin of Species," he also observes, " Natural Selection acts only by the preservation and accumulation of small inherited modifications." 2 And " Natural Selection, if it be a true principle, will banish the belief ... of any great and sudden... | |
 | Royal Microscopical Society (Great Britain) - 1874 - 350 páginas
...by nature, but they are destroyed. This is what Mr. Darwin calls " natural selection," which " acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | 1874 - 532 páginas
...by nature, but they are destroyed. This is what Mr. Darwin calls " Natural Selection," which " acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | John Tyndall - 1874 - 80 páginas
...by Nature, but they are destroyed. This is what Mr. Darwin calls "Natural Selection," which " acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | 1874 - 806 páginas
...by Nature, but they are destroyed. This is what Mr. Darwin calls " Natural Selection," which " acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | John Tyndall - 1874 - 138 páginas
...by nature, but they are destroyed. This is what Mr. Darwin calls ' Natural Selection,' which ' acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being.' With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | Sir Norman Lockyer - 1874 - 562 páginas
...selected by nature, but they are destroyed. This is what Mr. Darwin calls "natural selection," which "acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | John Tyndall - 1874 - 132 páginas
...by nature, but they are destroyed. This is what Mr. Darwin calls ' Natural Selection,' which ' acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being.' With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
 | Sir Norman Lockyer - 1874 - 562 páginas
...by nature, but they are destroyed. This is what Mr. Darwin calls "natural selection," which " acts by the preservation and accumulation of small inherited...modifications, each profitable to the preserved being." With this idea he interpenetrates and leavens the vast store of facts that he and others have collected.... | |
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Natural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to the preserved being... 
