The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts, 11. köideA. and C. Black, 1860 |
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Page 1
... species additional evidence is continually brought before us . In this mode of origin , which has received various names from authors , such as Gemmation , Homogenesis , and Monogenesis , a portion of the body of the parent becomes the ...
... species additional evidence is continually brought before us . In this mode of origin , which has received various names from authors , such as Gemmation , Homogenesis , and Monogenesis , a portion of the body of the parent becomes the ...
Page 2
... 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 very lowest forms of life , 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 very lowest forms of life , the ...
Page 3
... species , the successive zooids or phytoids preserving more completely than the pro- geny of embryonic origin the ... species . However this may be , there is reason to believe that the more highly organized the species is , the more ...
... species , the successive zooids or phytoids preserving more completely than the pro- geny of embryonic origin the ... species . However this may be , there is reason to believe that the more highly organized the species is , the more ...
Page 4
... species is , the more dependent it is on the frequent recurrence of sexual reproduction in the genetic cycle . At least , we find that in the lowest forms there may be a very prolonged pullulation of gemmæ , the sexual act recurring ...
... species is , the more dependent it is on the frequent recurrence of sexual reproduction in the genetic cycle . At least , we find that in the lowest forms there may be a very prolonged pullulation of gemmæ , the sexual act recurring ...
Page 6
... species , in which no phenomena of alternation are recognised . The first , or what I term the Protomorphic stage , is that which intervenes between the fecundation of the germ and the first appearance of the characteristic or typical ...
... species , in which no phenomena of alternation are recognised . The first , or what I term the Protomorphic stage , is that which intervenes between the fecundation of the germ and the first appearance of the characteristic or typical ...
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Common terms and phrases
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