Evolution by Atrophy in Biology and SociologyD. Appleton, 1899 - 316 pagini |
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Pagina
... third eye in lizards . 3. Degeneration of the organs of sight in deep - sea Crustacea . 4. Atrophy of the branchial vessels in man · Section II . The path of degeneration in plants . 1. Rarity of cases of recapitulation in the organ ...
... third eye in lizards . 3. Degeneration of the organs of sight in deep - sea Crustacea . 4. Atrophy of the branchial vessels in man · Section II . The path of degeneration in plants . 1. Rarity of cases of recapitulation in the organ ...
Pagina 33
... third walking legs , the part which corresponds to the oviduct of the female . It serves as a channel to conduct the fluid from the male orifice to that of the female . It consists of a protopodite ( pr . ) same ( Huxley ) . and an ...
... third walking legs , the part which corresponds to the oviduct of the female . It serves as a channel to conduct the fluid from the male orifice to that of the female . It consists of a protopodite ( pr . ) same ( Huxley ) . and an ...
Pagina 35
... third , the antennæ ; on the fourth , the mandibles ; on the fifth and sixth , the two pairs of maxillæ . The eight metameres of the middle of the body form the thorax , and carry on the seventh , eighth , and ninth , the maxillipedes ...
... third , the antennæ ; on the fourth , the mandibles ; on the fifth and sixth , the two pairs of maxillæ . The eight metameres of the middle of the body form the thorax , and carry on the seventh , eighth , and ninth , the maxillipedes ...
Pagina 36
... Third left maxillipede ( 1,5 / 1 ) : co , coxopodite , and ba , basipodite , forming pr , protopodite ; br , gill ; ex , exopodite ; en , en- dopodite ( Huxley ) . FIG . 9. - Astacus fluviatilis . Second left maxillipede ( 1,5 / 1 ) ...
... Third left maxillipede ( 1,5 / 1 ) : co , coxopodite , and ba , basipodite , forming pr , protopodite ; br , gill ; ex , exopodite ; en , en- dopodite ( Huxley ) . FIG . 9. - Astacus fluviatilis . Second left maxillipede ( 1,5 / 1 ) ...
Pagina 38
... third funda- mental part of the primitive member persists also in prawns throughout the entire period of life , but the organ is very small . At the extremity of the first and second pairs of walking legs there is an apparatus ...
... third funda- mental part of the primitive member persists also in prawns throughout the entire period of life , but the organ is very small . At the extremity of the first and second pairs of walking legs there is an apparatus ...
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
Pasaje populare
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