 | St. George Jackson Mivart - 1871 - 372 페이지
...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... | |
 | Charles Darwin - 1875 - 504 페이지
...in explaining the excavation 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... | |
 | Herbert William Morris - 1876 - 736 페이지
...work, and are probably the sole differences which are effective in the production of new species." J " Natural Selection acts only by the preservation and accumulation of small inherited modifications, each modification being profitable to the preserved animal." || * Orlrjin of Species, 6th Ed., p. 269.... | |
 | Samuel Butler - 1879 - 436 페이지
...this present book. When writing of the eye he says, " Variation will cause the slight alterations; "* but the " slight alterations " are the variations;...and accumulation of small inherited modifications," t—that is to say, it has had no share in inducing or causing these modifications. Again, " What applies... | |
 | Samuel Butler - 1879 - 402 페이지
...the " slight alterations " are the variations ; so that Mr. Darwin's words come to this — that " variation will cause the variations." There does not...and accumulation of small inherited modifications," t — that is to say, it has had no share in inducing or causing these modifications. Again, " What... | |
 | Alexander Wilford Hall - 1877 - 546 페이지
...selection acts exclusively by tho preservation and accumulation of variations whicli ire beneficial." " Natural selection acts only by the preservation and accumulation of small inherited modifications, etifh profitable to tlie presented being " " On the other hand <« 'may fe"l sure tftat any variation... | |
 | Robert Roberts - 1882 - 308 페이지
...be effected by natural selection" (Origin of Species, p. 9) ?—Yes. He lays it down, does he not, that " natural selection acts only by the preservation...and accumulation of small inherited modifications" (p. 75) ?—Quite so. Very well, how do you apply the law of development by inherited modifications,... | |
 | George Frederick Wright - 1882 - 418 페이지
...a species along a line of variation that is advantageous to it is by exceedingly minute steps, and that " natural selection acts 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... | |
 | Charles Darwin - 1882 - 494 페이지
...explaining the excavation of the deepest valleys or the formation of long lines of inland cliffs. Katural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to the preserved being ; and as modern geology has almost banished such 5 views as... | |
 | James Samuelson, Sir William Crookes - 1884 - 798 페이지
...lasting rather than sudden influence to be the inducement of the tendency to vary. For further evidence that " natural selection acts only by the preservation and accumulation of small " (p. 75) — [''infinitcsimally small " ed. ip 95] variations, consult the works cited passim. The... | |
| |
Natural selection acts only by the preservation and accumulation of small inherited modifications, each profitable to the preserved being... 
