Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina vi
... caused a reaction such as recently induced an emi- nent American economist to declare the bankruptcy of biological sociology , is perhaps due to the fact that , with a few distinguished exceptions , bio- sociological investigations have ...
... caused a reaction such as recently induced an emi- nent American economist to declare the bankruptcy of biological sociology , is perhaps due to the fact that , with a few distinguished exceptions , bio- sociological investigations have ...
Pagina xi
... CAUSES OF DEGENERATIVE EVOLUTION PART I. Atrophy of organs and institutions . Section I. The factors of atrophy • ( 1 ) Biology ( accidental , individual , normal and specific atrophy ) . ( 2 ) Sociology ( accidental and normal atrophy ) ...
... CAUSES OF DEGENERATIVE EVOLUTION PART I. Atrophy of organs and institutions . Section I. The factors of atrophy • ( 1 ) Biology ( accidental , individual , normal and specific atrophy ) . ( 2 ) Sociology ( accidental and normal atrophy ) ...
Pagina xii
... cause Atrophy of perianth ( Artemisia , Poterium ) . Atrophy of the eyes ( Myriopodes , Cymothoë ) . Correlative atrophy 261 263 263 268 274 274 278 278 Chapter II . Atrophy of institutions PAGE 281 § 1. xii CONTENTS.
... cause Atrophy of perianth ( Artemisia , Poterium ) . Atrophy of the eyes ( Myriopodes , Cymothoë ) . Correlative atrophy 261 263 263 268 274 274 278 278 Chapter II . Atrophy of institutions PAGE 281 § 1. xii CONTENTS.
Pagina xiii
... Causes of the persistence of organs or institutions without function Chapter I. Survival of organs § 1. Unfunctional organs that are not rudimentary Absence of variation ( flowers of Ficaria ranuncu- loïdes , Lysimachia Nummularia ...
... Causes of the persistence of organs or institutions without function Chapter I. Survival of organs § 1. Unfunctional organs that are not rudimentary Absence of variation ( flowers of Ficaria ranuncu- loïdes , Lysimachia Nummularia ...
Pagina 12
... cause , these individuals separate , they never form them- selves into a society . ( c ) A colony of Hydra is formed by the budding of a single indi- vidual . While nourishment is abundant , all the individuals of the colony retain ...
... cause , these individuals separate , they never form them- selves into a society . ( c ) A colony of Hydra is formed by the budding of a single indi- vidual . While nourishment is abundant , all the individuals of the colony retain ...
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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