A New Theory of Organic EvolutionW. Blackwood and Sons, 1903 - 174 páginas |
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Página 5
... specialised , until at last Man appeared upon the scene . Embryology seems to tell a similar story . The embryo of every mammal , including man , presents in its growth from the germ - cell to maturity , phases similar to those in the ...
... specialised , until at last Man appeared upon the scene . Embryology seems to tell a similar story . The embryo of every mammal , including man , presents in its growth from the germ - cell to maturity , phases similar to those in the ...
Página 39
... specialised than its antecessor . All these features in the development of the steam - engine have parallels in the evolu- tion of life . Like the first steam - engine , the earliest forms of life were the simplest . Embry- ology tells ...
... specialised than its antecessor . All these features in the development of the steam - engine have parallels in the evolu- tion of life . Like the first steam - engine , the earliest forms of life were the simplest . Embry- ology tells ...
Página 40
... - why some types persist through ages unchanged , and why others disappeared , or became more or less highly specialised . Are all these parallels between the evolu- tion of life and of the works of man mere 40 A NEW THEORY OF EVOLUTION .
... - why some types persist through ages unchanged , and why others disappeared , or became more or less highly specialised . Are all these parallels between the evolu- tion of life and of the works of man mere 40 A NEW THEORY OF EVOLUTION .
Página 43
... specialised , until the evolution culminated in Man . In the process of evolution the Specific life - force of an existing organism was utilised in evolving a new type , so far as the old and the new were alike : in other words , the ...
... specialised , until the evolution culminated in Man . In the process of evolution the Specific life - force of an existing organism was utilised in evolving a new type , so far as the old and the new were alike : in other words , the ...
Página 57
... specialised than the first - is wanted , either the centre pattern or the twilled square , or both , may be dispensed with , and the corresponding arrangements of the loom would be omitted . The appearance and the quality of the web ...
... specialised than the first - is wanted , either the centre pattern or the twilled square , or both , may be dispensed with , and the corresponding arrangements of the loom would be omitted . The appearance and the quality of the web ...
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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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