Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina
... Progressive degeneration of the pro- thallus in phanerogams Chapter II . The path of degeneration in sociology § 1. Investigation of facts 1. Tithings , hundreds and counties in England . 2 . Order of elimination of various racial ...
... Progressive degeneration of the pro- thallus in phanerogams Chapter II . The path of degeneration in sociology § 1. Investigation of facts 1. Tithings , hundreds and counties in England . 2 . Order of elimination of various racial ...
Pagina 21
... progressive if it tends to the development of an organ or to the formation of a new organ . These definitions may be applied — mutatis mutandis to the changes undergone by societies and institutions or their constituent parts . The ...
... progressive if it tends to the development of an organ or to the formation of a new organ . These definitions may be applied — mutatis mutandis to the changes undergone by societies and institutions or their constituent parts . The ...
Pagina 22
... progressive co - ordination of the functions or organs thus differentiated . Degenerative evolution , on the other hand , con- veys the ideas of decline , of decay , and of de- generation , such as the atrophy of the organs of ...
... progressive co - ordination of the functions or organs thus differentiated . Degenerative evolution , on the other hand , con- veys the ideas of decline , of decay , and of de- generation , such as the atrophy of the organs of ...
Pagina 24
... progressive stages in the evolution of the pyramidal cell in the human brain : a , the neuroblast without protoplasmic processes ; b , the appearance of the The neuron , nerve process and of the terminal ramifications ; for instance ...
... progressive stages in the evolution of the pyramidal cell in the human brain : a , the neuroblast without protoplasmic processes ; b , the appearance of the The neuron , nerve process and of the terminal ramifications ; for instance ...
Pagina 42
... progressive transformation , since new and more perfectly adapted organs were formed - was accompanied by degeneration , for a considerable part of the folds disappeared . In the same way , although the transformation of the parallel ...
... progressive transformation , since new and more perfectly adapted organs were formed - was accompanied by degeneration , for a considerable part of the folds disappeared . In the same way , although the transformation of the parallel ...
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