The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts, Том 11A. and C. Black, 1860 |
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... structure charac- teristic of the species , and destined to be thrown on its own resources , by its extrusion from the protecting envelopes , as soon as its organisation is sufficiently advanced for this con- dition . In all but the ...
... structure charac- teristic of the species , and destined to be thrown on its own resources , by its extrusion from the protecting envelopes , as soon as its organisation is sufficiently advanced for this con- dition . In all but the ...
Страница 3
... structural characters , again , even putting aside the evidence concerning the germs of the viviparous aphides as somewhat discordant , though , certainly , on the whole , in favour of the essential identity of ova and gemmæ , the ...
... structural characters , again , even putting aside the evidence concerning the germs of the viviparous aphides as somewhat discordant , though , certainly , on the whole , in favour of the essential identity of ova and gemmæ , the ...
Страница 5
... structure - in the one case the primary products of impregnation , the precursors of the perfect form , and without sexual characters , in the other derivative and with distinct sexes - have yet this one point in common , that the great ...
... structure - in the one case the primary products of impregnation , the precursors of the perfect form , and without sexual characters , in the other derivative and with distinct sexes - have yet this one point in common , that the great ...
Страница 6
... structures in which the spermatic and germinal elements are generated , in preparation for another act of fecundation , as the commencement of a new genetic cycle . In one of the forms of alternation just noticed , the interpo- lation ...
... structures in which the spermatic and germinal elements are generated , in preparation for another act of fecundation , as the commencement of a new genetic cycle . In one of the forms of alternation just noticed , the interpo- lation ...
Страница 7
... structures of a like kind . Numerous gemmæ are developed from the last - formed cysts , having the general characters of " Tania - heads . " In another species or variety of Echinococcus , similar " Tænia - heads " are formed , in con ...
... structures of a like kind . Numerous gemmæ are developed from the last - formed cysts , having the general characters of " Tania - heads . " In another species or variety of Echinococcus , similar " Tænia - heads " are formed , in con ...
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acid ancient animals appearance arch Archegosaurus bones botany Bowfell caloric carbon carbonic acid caves cent Cestoidea character colour combustion contains distinct district draught Eastern Echinodermata Edinburgh effect embryogeny Europe exhibited existence fact feet flora formation fossils fuel gamomorphic gemmæ gemmation genera genus give glacial glaciers gneiss goitre Haurân hills hydrogen insects instance lake larvæ latter Lejah less light loss luminous mean temperature miles moraine mountains nature nearly Nitrogen North America observations occur organs origin orthomorphic ovum peculiar period phenomena plants portion present probably produced Professor protomorphic referred region remarkable resemblance roches moutonnées rock seen self-registering sepals SERIES.-VOL side Silurian similar skull Society species specific gravity specific heat specimens streamers structure surface Table tarn Taxodium thermometer tion trees Trematoda valley vegetable vertebræ weight Wellingtonia western whole zooids