 I HAVE hitherto sometimes spoken as if the variations — so common and multiform in organic beings under domestication, and in a lesser degree in those in a state of nature — had been due to chance. This, of course, is a wholly incorrect expression,...  The Principles of Biology - Halaman 264oleh Herbert Spencer - 1864 - 1079 halamanTampilan utuh - Tentang buku ini
 | 1896 - 588 halaman
...over others.' * In accepting this conclusion, it must be borne in mind that Darwin felt constrained ' to acknowledge plainly our ignorance of ' the cause of each particular variation.' f The research he started carried us behind and beyond the evidence for historic variation. We are... | |
 | 1891 - 460 halaman
...multiform with organic beings under domestication, and in a lesser degree with those under nature, were due to chance. This, of course, is a wholly incorrect...ignorance of the cause of each particular variation."» I have already quoted Lankester upon this principle and refer below to a passage in which he reiterates... | |
 | 1867 - 854 halaman
...all organic beings." " Utterly Ignorant though we be ot the meaning of the law." •• This (chance) of course is a wholly incorrect expression, but it...Ignorance of the cause of each particular variation." '• Why • • . . this or that part should vary more or jess, ire are profoundly ignorant ; nevertheless,... | |
 | Charles Darwin - 1861 - 470 halaman
...in organic beings under domestication, and in a lesser degree in those in a state of nature — had been due to chance. This, of course, is a wholly incorrect...ignorance of the cause of each particular variation. Some authors believe it to be as much the function of the reproductive system to produce individual... | |
 | Charles Darwin - 1864 - 472 halaman
...in organic beings under domestication, and in a lesser degree in those in a state of nature — had been due to chance. This, of course, is a wholly incorrect...ignorance of the cause of each particular variation. Some authors believe it to be as much the function of the reproductive system to produce individual... | |
 | 1865 - 496 halaman
...of the laws of variation is profound,' and that in speaking of them as due to chance, he means only 'to acknowledge plainly our ignorance of the cause of each particular variation.' Again he says, 'I believe in no law of necessary development.' His theory seems to be far better than... | |
 | 1867 - 548 halaman
...of all organic beings." " Utterly ignorant though we be of the meaning of the law." " This (chance) of course is a wholly incorrect expression, but it...ignorance of the cause of each particular variation." " Why .... this or that part should vary more or leas, we are profoundly ignorant ; nevertheless, we... | |
 | George Douglas Campbell Duke of Argyll - 1867 - 490 halaman
...laws of variation is profound;" and says, that in speaking of them as due to chance, he means only " to acknowledge plainly our ignorance of the cause of each particular variation."* Again he says — " I believe in no law of necessary development.'^ This distinction between Mr Darwin's... | |
 | 1909 - 846 halaman
...and multiform with organic beings under domestication, and in a lesser degree under nature — were due to chance. This, of course, is a wholly incorrect...ignorance of the cause of each particular variation." No doubt each variation must have its efficient cause, but it is as hopeless to discover the cause... | |
 | 1909 - 828 halaman
...and multiform with organic beings under domestication, and in a lesser degree under nature — were due to chance. This, of course, is a wholly incorrect...plainly our ignorance of the cause of each particular variation.5 No doubt each variation must have its efficient cause, but it is as hopeless to discover... | |
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