The Quarterly Journal of the Geological Society of London, Volume 36The Society, 1880 - Electronic journals Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Common terms and phrases
Antedon appear articular bands basal base beds Bembridge bone border Boulder-clay Brent Tor Brockenhurst calcareous Carboniferous cavity centimetres centrodorsal centrum chalk Chalky Clay character Chillesford cliff Coal Colwell Bay conglomerate containing denticles deposits described Devonian diameter district dorsal east Eocene evidence fauna feet felspar Fenestella flints fluvio-marine formation fossils fragments freshwater genus Geol Geological granite Graptolites gravel grits Headon Hill horizon Hyæna inches Journ Kimmeridge Clay latter length limestone lower M'Coy marine marl mass mica millims Miocene moraine Myalina nearly occur Old Red Sandstone Oligocene plates Pleuracanthus Pliocene portion posterior present probably Prof quarry quartz quartzite radial represented resemblance ridge rocks seen shales Sheet shells side Silurian slate species specimens spicules spine stone strata surface Swindon Tertiary thickness traced transverse Trigonia upper valley vertebræ
Popular passages
Page 75 - If the mud be shaken with weak spirit of wine, fine flakes separate like coagulated mucus, and if a little of the mud in which this viscid condition is most marked be placed in a drop of...
Page 83 - Fine insoluble gritty sand (rock debris) .... 26-77 Water 2-90 Organic matter 4-19 Chloride of sodium and other soluble salts .. 7'48 100-00 If we compare the chemical composition as above with that of ordinary Chalk, which consists all but entirely of carbonate of lime, and seldom contains more than from 2 to 4 per cent, of foreign matter (clay, silica, &c.), it will...
Page 65 - It then becomes thinner, but again developes into a mass which may very well have served as the base of a second spine, if one "were present. There is no evidence, however, of a second spine remaining on the present specimen ; it has rather the appearance of a thick scale, somewhat accuminate towards the centre. Prof. Agassiz, in the " Pois. Foss. des Vieux Gres Rouge...
Page 66 - sans phrase' but that even those who will not allow it to be a Teleostean must attach to it the warning adjunct of incerta sedis." And further, " Why should not a few Teleosteans have represented their order among the predominant Ganoids of the Devonian epoch, just as a few Ganoids remain among the predominant Teleosteans of the present day ? When it is considered that an ichthyologist might be acquainted with every fresh-water and marine fish of Europe, Asia, South Africa, South America, the Indian...
Page v - Note on the Cranial Characters of a large Teleosaur from the Whitby Lias, preserved in the Woodwardian Museum of the University of Cambridge.
Page 382 - Pliocene, a tree of life, with living mammalia for its fruits and foliage. Were the extinct species taken into account, it would be seen that they fill up the intervals separating one living form from another, and that they too grow more and more like the living forms as they approach nearer to the present day. It must be remembered that in the above definitions the fossil marsupials are purposely ignored, because they began their...
Page v - On the Skull of an Ichthyosaurus from the lias of Whitby, apparently indicating a new species (/. zetlandicus, Seeley), preserved in the Woodwardian Museum of the University of Cambridge.
Page 76 - If the jelly-like organism which had been seen by some eminent naturalists in specimens of ocean bottoms and called Bathybius really formed, as was believed, an all-pervading organic covering of the seabottom, it could hardly fail to show itself when the bottom water was evaporated to dryness and the residue heated. In the numerous samples of bottom water which I have so examined, there...
Page 4 - When thè nodulo is elongated, and thè wrinkles correspond, as they always do, to thè longer axis, thè ressemblance is very striking to a dried butternut, more especially when stripped of its epicarp. No wonder they should be called petrified butternuts — If a specimen, somewhat flattened, be placed on its edge, and a moderately sharp blow be given to it with a hammer, concavo convex scales will be chipped off even to thè centre.
Page 307 - ... on, into a single bed. So far as my present observation goes, I think that to describe them otherwise than as interstratified beds would be to give a false notion of their geognostic relations. The laminated structure of many of the lodes, and the intercalation between their layers of thin continuous films or layers of argillite, can hardly be explained in any other way than by supposing these lodes to have been formed by successive deposition at what was, at the time, the surface of the earth.