 I have stated in the first chapter, that at whatever age a variation first appears in the parent, it tends to re-appear at a corresponding age in the offspring. Certain variations can only appear at corresponding . ages ; for instance, peculiarities in...  The Geological Evidences of the Antiquity of Man - 417 페이지저자: Sir Charles Lyell - 1863 - 528 페이지전체보기 - 도서 정보
 | 1901 - 770 페이지
...obtained. Darwin himself suggested that the clue might be found in the consideration that at whatever age a variation first appears in the parent, it tends to reappear at a corresponding age in the offspring ; but this must be regarded rather as a statement of the fundamental fact of embryology than as an... | |
 | Charles Darwin - 1861 - 470 페이지
...period, ju I have stated in the first chapter, that there is some y evidence to render it probable, that at whatever age any variation first appears in...reappear at a corresponding age in the offspring. Certain variations can only appear at corresponding ages, for instance, peculiarities in the caterpillar,... | |
 | Charles Darwin - 1864 - 472 페이지
...early period. I have stated in the first chapter, that there is some evidence to render it probable, that at whatever age any variation first appears in...reappear at a corresponding age in the offspring. Certain variations can only appear at corresponding ages, for instance, peculiarities in the caterpillar,... | |
 | Charles Darwin - 1875 - 504 페이지
...shape, as long as it was fed by its parents. I have stated in the first chapter, that at whatever age a variation first appears in the parent, it tends to...re-appear at a corresponding age in the offspring. Certain variations can only appear at corresponding ages ; for instance, peculiarities in the caterpillar,... | |
 | Charles Darwin - 1884 - 396 페이지
...shape, as long as it was fed by its parents. I have stated in the first chapter that at whatever age a variation first appears in the parent, it tends to reappear at a corresponding age in the offspring. Certain variations can only appear at corresponding ages ; for instance, peculiarities in the caterpillar,... | |
 | Arthur Milnes Marshall - 1893 - 682 페이지
...found. Darwin himself suggested that the clue might be found in the consideration that at whatever age a variation first appears in the parent, it tends to reappear at a corresponding age in the offspring ; but this must be regarded rather as a statement of the fundamental fact of embryology than as an... | |
 | Charles Darwin - 1896 - 360 페이지
...shape, as long as it was fed by its parents. I have stated in the first chapter, that at whatever age a variation first appears in the parent, it tends to...re-appear at a corresponding age in the offspring. Certain variations can only appear at corresponding . ages ; for instance, peculiarities in the caterpillar,... | |
 | Charles Darwin - 1909 - 584 페이지
...shape, as long as it was fed by its parents. I have stated in the first chapter, that at whatever age a variation first appears in the parent, it tends to reappear at a corresponding age in the offspring. Certain variations can only appear at corresponding ages ; for instance, peculiarities in the caterpillar,... | |
 | D'Arcy Wentworth Thompson - 1917 - 826 페이지
...generally appear at a not very earl1 period of life,7' and secondly, that "at whatever age a variatioi first appears in the parent, it tends to reappear at a corresponding age in the offspring." He then argues that it is with nature a with the fancier, who does not care what his pigeons look lik<... | |
 | John Alexander Moore - 1993 - 548 페이지
..."may have supervened at a not very early period in life" (that is, late in embryonic life); and third, "that at whatever age any variation first appears...reappear at a corresponding age in the offspring" (p. 444). Darwin's hypothesis of descent with modification — that is, natural selection acting on... | |
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