A New Theory of Organic EvolutionW. Blackwood and Sons, 1903 - 174 páginas |
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Página 6
... distinct from natural selection . Evolution is an accepted fact , but it is denied that evolution was brought about by natural selection . The succession of different types , and the fundamental simi- larity in organisation between any ...
... distinct from natural selection . Evolution is an accepted fact , but it is denied that evolution was brought about by natural selection . The succession of different types , and the fundamental simi- larity in organisation between any ...
Página 20
... distinct characteristics of the discarded breed . Such cases of atavism seem to indicate a reluctance in Nature to lose a type , and also a tendency in the event of an acci- dental deviation - a monstrosity , for ex- ample to revert to ...
... distinct characteristics of the discarded breed . Such cases of atavism seem to indicate a reluctance in Nature to lose a type , and also a tendency in the event of an acci- dental deviation - a monstrosity , for ex- ample to revert to ...
Página 26
... distinct races ; and That intermarriage between two races will not , without the intermixture of pure blood , produce a permanent stock . We may thus understand why there are no mongrel descendants beyond the first or second generation ...
... distinct races ; and That intermarriage between two races will not , without the intermixture of pure blood , produce a permanent stock . We may thus understand why there are no mongrel descendants beyond the first or second generation ...
Página 30
... Distinct races are far more numerous than species , so called . Only the stock of a pure race is per- manent . Continuous fertility and persistence of stock is the true test of a distinct race . The first ancestors of every race were of ...
... Distinct races are far more numerous than species , so called . Only the stock of a pure race is per- manent . Continuous fertility and persistence of stock is the true test of a distinct race . The first ancestors of every race were of ...
Página 42
... distinct new type . The first forms of life ( which all theories assume ) consisted of a simple cell , that by inherent force ( which we call " life - force " ) multiplied by producing other similar cells . 1 Darwiniana , p . 463 ...
... distinct new type . The first forms of life ( which all theories assume ) consisted of a simple cell , that by inherent force ( which we call " life - force " ) multiplied by producing other similar cells . 1 Darwiniana , p . 463 ...
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According to Darwin accumulation of beneficial ADAM BEDE antecessor appeared Author beneficial differences Blackwood breeder cattle cessive CHAPTER Cheap Edition Cheaper Church of Scotland CLASSICS FOR ENGLISH cloth colour common-sense conclusions conditions of existence Crown 8vo Darwin Darwinian Demy 8vo disuse domestic animals embryo ence evidence evolution evolved expression of type Fcap force French morocco genera George Eliot germ-cell germ-plasm gilt top growth habits History hybrids hypothesis J. G. Lockhart Jacquard loom JAMES JOHN Lectures less highly specialised limp LL.D loom mammal Maps modification natural selection numerous Illustrations OLIPHANT organisation organs Origin of Species paper cover People's Edition phenomena Philosophy Photogravure physique plant Poems Portrait Post 8vo Prof progeny rock-pigeon Romance royal 8vo Scottish Second Edition Second Impression secondary causes seed selective breeding Specific life-force specific variation struggle for existence successive types successor theory Third Edition tion University of Edinburgh vols whale wild species WILLIAM
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