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 2
... . Quatre- fages states that he has seen segmentation take place , inde- pendently of impregnation , in the ova of Hermella and Unio , though no farther development follows . In regard to the 2 Dr George Ogilvie's Observations on the.
... . Quatre- fages states that he has seen segmentation take place , inde- pendently of impregnation , in the ova of Hermella and Unio , though no farther development follows . In regard to the 2 Dr George Ogilvie's Observations on the.
Page 3
... regard to 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 ...
... regard to 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 ...
Page 7
... regard both the theca and the pro- tonema as intermediate forms , no more represented in the higher plants , than the gregariniform zooids of distoma are in the higher grades of animal life . § 5. Gamomorphic Alternation . The other ...
... regard both the theca and the pro- tonema as intermediate forms , no more represented in the higher plants , than the gregariniform zooids of distoma are in the higher grades of animal life . § 5. Gamomorphic Alternation . The other ...
Page 11
... regard as gamomorphic phy- toids , parallel to the medusiform reproductive zooids of the Polypifera . Hence I feel obliged to dissent from the paral- lelism which Hoffmeister would establish between the repro- ductive process in ferns ...
... regard as gamomorphic phy- toids , parallel to the medusiform reproductive zooids of the Polypifera . Hence I feel obliged to dissent from the paral- lelism which Hoffmeister would establish between the repro- ductive process in ferns ...
Page 19
... regard particularly to what may be termed the adventitious organisa- tion of the reproductive zooids , as compared with mere organs fulfilling the same function , this conclusion is strengthened by the contrast of a phenomenon of an ...
... regard particularly to what may be termed the adventitious organisa- tion of the reproductive zooids , as compared with mere organs fulfilling the same function , this conclusion is strengthened by the contrast of a phenomenon of an ...
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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