Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina
... modification is necessarily attended by degeneration § 1. Preliminary considerations ( 1 ) Original formation of organs in ancestral forms ( 2 ) Development of organs in the individual ( 3 ) Philogenetic evolution of function · Section ...
... modification is necessarily attended by degeneration § 1. Preliminary considerations ( 1 ) Original formation of organs in ancestral forms ( 2 ) Development of organs in the individual ( 3 ) Philogenetic evolution of function · Section ...
Pagina
... modification is necessarily accompanied by degeneration 70 78 78 90 § 1. Modifications of similar institutions in the same society 91 ( 1 ) The communal budgets of Belgium ( 2 ) Budget of the States of the German Empire ( 3 ) The ...
... modification is necessarily accompanied by degeneration 70 78 78 90 § 1. Modifications of similar institutions in the same society 91 ( 1 ) The communal budgets of Belgium ( 2 ) Budget of the States of the German Empire ( 3 ) The ...
Pagina 16
... modifications are effected more slowly and with greater difficulty than are social modifica- 1 Les Monades et la Science sociale . ( Tarde . Revue de Sociologie , 1893 , p . 169. ) tions . 1 The result is an important one from 16 ...
... modifications are effected more slowly and with greater difficulty than are social modifica- 1 Les Monades et la Science sociale . ( Tarde . Revue de Sociologie , 1893 , p . 169. ) tions . 1 The result is an important one from 16 ...
Pagina 17
... modification of organisms . Phylogeny , the science of organic kinship , resorts to other methods , and particularly to the comparative method in its various forms : - ( a ) Morphology , the science of determining the phylogeny of ...
... modification of organisms . Phylogeny , the science of organic kinship , resorts to other methods , and particularly to the comparative method in its various forms : - ( a ) Morphology , the science of determining the phylogeny of ...
Pagina 22
... MODIFICATION IS NECESSARILY ATTENDED BY DEGENERATION Section I - Preliminary Considerations IN order to effect the demonstration which is the object of this chapter , only the phylogenetic modifi- cations of organs will be discussed ...
... MODIFICATION IS NECESSARILY ATTENDED BY DEGENERATION Section I - Preliminary Considerations IN order to effect the demonstration which is the object of this chapter , only the phylogenetic modifi- cations of organs will be discussed ...
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
abdominal adaptation to arboreal adult ancestral animal apical leaves appendages aquatic Archaeopteryx assimilative Astacus Astacus fluviatilis atrophy basilar leaves basipodite become biology bipinnated blade branches calcaneum cells characters chlorophyll Choanoflagellates claw collective property colony communities complete condition consists Crustacea custom degenerative evolution digits disappeared Dollo Echinoderms embryology endopodite epipod exhibited existence exopodite ex female fins five-toed floating leaves flowers foliage leaves formed function gill Heterocephalus Huxley hypopod instance institutions joint land larvæ Lathyrus Aphaca leaf leaflets limbs male mammals marriage maxillipede membrane mesonephros metameres metatarsals modification normal origin pairs petiole phalanges physiological pineal eye plants podite primitive progressive protopodite pr Ranunculus reduced regarded remain represented result rods Rosa rugosa rudimentary organs segment social societies sociology species stages stamens stem stipules stomata structure survival tarsius tendrils terrestrial thalamencephalon third tion transformation undergone useless vertebrates vestiges walking legs
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Pagina 326 - XI. ANIMAL MECHANISM : a Treatise on Terrestrial and Aerial Locomotion. By Professor EJ Marey. With 117 Illustrations. Second Edition. Crown 8vo. price 5*. XII. THE DOCTRINE OF DESCENT AND DARWINISM. By Professor Oscar Schmidt. With 26 Illustrations. Fourth Edition. Crown 8vo. price 5*. XIII. THE HISTORY OF THE CONFLICT BETWEEN RELIGION AND SCIENCE. By JW Draper, MD, LL.D. Fifteenth Edition. Crown 8vo. price 5*. XIV. FUNGI: their Nature, Influences Uses, &c.
Pagina 326 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Pagina 326 - XI. Animal Mechanism : a Treatise on Terrestrial and Aerial Locomotion. By Professor EJ Marey. With 117 Illustrations. Second Edition. Crown 8vo, $s. XII. The Doctrine of Descent and Darwinism. By Professor Oscar Schmidt. With 26 Illustrations. Fifth Edition. Crown 8vo, 5*.
Pagina 82 - A plant of Drosera, with the edges of its leaves curled inwards, so as to form a temporary stomach, with the glands of the closely inflected tentacles pouring forth their acid secretion, which dissolves animal matter, afterwards to be absorbed, may be said to feed like an animal.
Pagina 326 - Edition. II. PHYSICS and POLITICS ; or, Thoughts on the Application of the Principles of ' Natural Selection ' and ' Inheritance