Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina vii
... DEGENERATIVE EVOLUTION PART I. Degeneration in the development of institutions and organs · Chapter I. In the evolution of organs all modification is necessarily attended by degeneration § 1. Preliminary considerations ( 1 ) Original ...
... DEGENERATIVE EVOLUTION PART I. Degeneration in the development of institutions and organs · Chapter I. In the evolution of organs all modification is necessarily attended by degeneration § 1. Preliminary considerations ( 1 ) Original ...
Pagina x
... degeneration retraces the steps of progress • Chapter I. The path of degeneration in biology Section I. The path of degeneration in animals 1. Morphology and embryology ; the law of recapitu- lation . 2. Degeneration of the third eye in ...
... degeneration retraces the steps of progress • Chapter I. The path of degeneration in biology Section I. The path of degeneration in animals 1. Morphology and embryology ; the law of recapitu- lation . 2. Degeneration of the third eye in ...
Pagina xii
... Degeneration of Paleæ ( composite flowers ) and of stamens ( Scrophulariacea ) § 2. Atrophy from lack of use 1. Functional inutility : ( 1 ) Etiolated plants and immobile limbs . ( 2 ) Epicotyl and primary leaf of Nymphaea . ( 3 ) Roots ...
... Degeneration of Paleæ ( composite flowers ) and of stamens ( Scrophulariacea ) § 2. Atrophy from lack of use 1. Functional inutility : ( 1 ) Etiolated plants and immobile limbs . ( 2 ) Epicotyl and primary leaf of Nymphaea . ( 3 ) Roots ...
Pagina 20
... the subject of our investigations . 1 Tableau des origines et de l'évolution de la propriété et de la famille , p . 170 ( Kowalevsky ) . BOOK I UNIVERSALITY OF DEGENERATIVE EVOLUTION PART I DEGENERATION IN 20 EVOLUTION BY ATROPHY.
... the subject of our investigations . 1 Tableau des origines et de l'évolution de la propriété et de la famille , p . 170 ( Kowalevsky ) . BOOK I UNIVERSALITY OF DEGENERATIVE EVOLUTION PART I DEGENERATION IN 20 EVOLUTION BY ATROPHY.
Pagina 21
... opposite phenomena . The term " progressive evolution " conveys the ideas of progress , development , im- provement 3 21 BOOK I UNIVERSALITY OF DEGENERATIVE EVOLUTION Degeneration in the development of institutions and organs.
... opposite phenomena . The term " progressive evolution " conveys the ideas of progress , development , im- provement 3 21 BOOK I UNIVERSALITY OF DEGENERATIVE EVOLUTION Degeneration in the development of institutions and organs.
Alte ediții - Afișează-le pe toate
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vizualizare completă - 1899 |
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vizualizare completă - 1899 |
Evolution by Atrophy in Biology and Sociology Jean Demoor,Jean Massart,Emile Vandervelde Vizualizare completă - 1899 |
Termeni și expresii frecvente
adult ancestral stages animals antheridia apical leaves appear appendages aquatic Archaeopteryx assimilative atrophy basilar leaves became become belonging bipinnated blade branches calcaneum canal cells characters chlorophyll collective property colony complete condition consists corporations Crustacea custom degeneration degenerative evolution digits disappeared embryo endopodite epipod exhibited existence exopodite female feudal floating leaves flowers foliage leaves formation formed function gland Huxley hypopod Illustrations individual instance institutions intercentrum land larval Lathyrus Aphaca leaf leaflets limbs male mammals marriage masuirs maxillipede mesonephros metatarsals modern modification muscles normal original pairs petiole phalanges pineal eye plants podite primitive Professor progressive evolution pronephros prothallus protopodite pr reduced regarded remain represent retracing Rosa rugosa rudimentary organs segment sepal slow-worm social societies sociology species stamens stem stipules stomata structure survival tarsius tendrils terminal thalamencephalon third tion traces transformation undergone useless vertebral column vertebrates vestiges wings
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