 As to the successions, or coming in, of new species, one might speculate on the gradual modifiability of the individual; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production...  The Natural History Review - 39 페이지1864전체보기 - 도서 정보
 | Richard Owen - 1859 - 120 페이지
...the individual; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production and...eg; — but to what purpose ? Past experience of the chance aims of human fancy, unchecked and unguided by observed facts, shews how widely they have ever... | |
 | 1859 - 554 페이지
...individual—on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type ; on the production and...changing climate or other conditions than the old type—of such an origin of alca torda, eg—but to what purpose? Past experience of the chance aims... | |
 | Richard Owen - 1859 - 118 페이지
...the individual; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production and...changing climate or other conditions than the old type—of such an origin of Alca torda, eg;—but to what purpose 1 Past experience of the chance aims... | |
 | 1860 - 452 페이지
...individual ; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production and...conditions than the old type — of such an origin of Alea torda, eg ; — but to what purpose ? Past experience of the chance aims of human fancy, unchecked... | |
 | 1860 - 448 페이지
...the individual; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production and...being occasionally hatched with a somewhat longer winglct, and a dwarfed stature; on the probability of such a variety better adapting itself to the... | |
 | Sir John William Dawson - 1860 - 436 페이지
...the individual; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type ; on the production and...of monstrous offspring ; on the possibility, eg, of an auk being occasionally hatched with a somewhat longer winglet, and a dwarfed stature ; on the prohability... | |
 | Sir John William Dawson - 1860 - 466 페이지
...individual ; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type ; on the production and fertility of monstrous offspring 5 on the possibility, eg, of an auk being occasionally hatched with a somewhat longer winglet, and... | |
 | Royal Institution of Great Britain - 1862 - 574 페이지
...an older type ; on the production and * John Wolley, junr., Esq., FZS 211 Professor Owen, [April 12, fertility of monstrous offspring; on the possibility,...; — but to what purpose ? Past experience of the chance aims of human fancy, unchecked and unguided by observed facts, shows how widely they have ever... | |
 | 1867 - 448 페이지
...the individual; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production and...; — but to what purpose ? Past experience of the chance aims of human fancy, unchecked and unguided by observed facts, shows how widely they have ever... | |
 | 1867 - 460 페이지
...individual ; on the tendency of certain varieties to survive local changes, and thus progressively diverge from an older type; on the production and...of a variety of auk being occasionally hatched with «. somewhat longer winglet, and a dwarfed stature; on the probability of such a variety better adapting... | |
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