The Quarterly Journal of the Geological Society of London, Volume 31The Society, 1875 - Electronic journals Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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Page lxii
... surface at a not inaccessible depth . In this hope , owing to a series of vexatious accidents , I have been disappointed . But though for the moment the work has been stayed , those who have it in hand are not dis- couraged ; and I ...
... surface at a not inaccessible depth . In this hope , owing to a series of vexatious accidents , I have been disappointed . But though for the moment the work has been stayed , those who have it in hand are not dis- couraged ; and I ...
Page lxviii
... surface , and it is in consequence evaporated or absorbed by vegetation . During the winter months , however , the moisture which is absorbed gravitates downwards , until it arrives at the plane of permanent saturation , the level of ...
... surface , and it is in consequence evaporated or absorbed by vegetation . During the winter months , however , the moisture which is absorbed gravitates downwards , until it arrives at the plane of permanent saturation , the level of ...
Page lxix
... surface of this saturated hill depends on the permeability of the rock and the amount of friction , including capillary attraction , which the water would have to overcome in order to attain an absolute level . In Upper - Chalk ...
... surface of this saturated hill depends on the permeability of the rock and the amount of friction , including capillary attraction , which the water would have to overcome in order to attain an absolute level . In Upper - Chalk ...
Page 3
... surface which comes winding down until it merges in the plain below . As at this point there was no valley , the glacier - like form did not exist , but in its place were long winding sandy ridges running from the foot of the hills and ...
... surface which comes winding down until it merges in the plain below . As at this point there was no valley , the glacier - like form did not exist , but in its place were long winding sandy ridges running from the foot of the hills and ...
Page 12
... surface on which they rest is invariably flat , showing that it had been planed down to an even surface before the deposition of the superincumbent beds , which in their turn , by the comparison of the flat tops they now cover with the ...
... surface on which they rest is invariably flat , showing that it had been planed down to an even surface before the deposition of the superincumbent beds , which in their turn , by the comparison of the flat tops they now cover with the ...
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Common terms and phrases
Ammonites angle angular appear Arenig augite bands base beds bones boulders Cambridge Camerton Carboniferous Chalk Chalk-marl character chlorite clay cliff colour containing coprolites Crocodilia crystals D'Orb débris denudation deposits district Ditto drift dykes evidence fauna feet felsitic felspar felstone formation fossils fragments Gault genus Geol Geological Society Geological Survey glacial granite gravel Greensand Harry Govier Seeley hills inch Journ Kimmeridge Kimmeridge Clay lavas leucite Lias lime limestone Lincolnshire Llandeilo lower mass microscopic miles mineral Munger Museum nearly nodules occur Oolite orthoclase Ostrea paper phosphate phosphoric acid Pict plate Porphyry portion posterior present probably Prof Professor Prorastomus Quarry quartz Ramsey Island remarked sand sandstone Seeley seen shales shell side Silurian slates species specimens stones strata striæ structure surface Tertiary thickness tion trace Upper valley whorls
Popular passages
Page 114 - Guineas each, with every requisite to assist those commencing the study of this interesting science, a knowledge of which affords so much pleasure to the traveller in all parts of the world. * A collection for Five Guineas which will illustrate the recent works on Geology by Ansted, Buckland.
Page 316 - Rocks. SECONDARY FOSSILS, from the Trias, Lias, Oolite, Wealden, and Cretaceous Groups. TERTIARY FOSSILS, from the Woolwich, Barton, and Bracklesham Beds, London Clay, Crag, &c. In the more expensive Collections some of the Specimens are rare, and all more select.
Page 256 - Both bodies of deer extended further than the eye could reach, and formed a compact mass, narrowing towards the front. They moved slowly and majestically along, their broad antlers resembling a moving wood of leafless trees. Each body was led by a deer of unusual size, which my guides assured me was always a female. One of the herds was stealthily followed by a wolf, who was apparently watching for an opportunity of seizing any one of the younger and weaker deer which might fall behind the rest,...
Page lxxv - Geikie has held that for the most part they belong to an interglacial episode towards the close of the Glacial period, and regards it as certain that no Palaeolithic bed can be shown to belong to a more recent date than the mild era that preceded the last great submergence. His follower, Mr.
Page 510 - VON COTTA. An English Edition, by PH LAWRENCE (with English, German, and French Synonymes), revised by the Author. Post 8vo. lit. Sound : a Course of Eight Lectures delivered at the Royal Institution of Great Britain. By Professor JOHN TYNDALL, LL.DFRS Crown 8vo. with Portrait and Woodcuts, 9» Heat Considered as a Mode of Motion.
Page 316 - WC, gives Practical Instruction in Mineralogy and Geology. He can also supply Elementary Collections of Minerals, Rocks, and Fossils, on the following terms: — 100 Small Specimens, in cabinet, with three trays. £2 2 0 *200 Specimens, larger, in cabinet, with five trays...
Page 475 - The heat from which terrestrial volcanic energy is at present derived is produced locally within the solid shell of our globe by transformation of the mechanical work of compression or of crushing of portions of that shell, which compressions and crushings are themselves produced by the more rapid contraction, by cooling, of the hotter material of the nucleus beneath that shell, and the consequent more or less free descent of the shell by gravitation, the vertical work of which is resolved into tangential...
Page 316 - Trays £2 2 0 200 Specimens, larger, in Cabinet with Five Trays 6 6 0 300 Specimens, larger, in Cabinet with Nine Drawers 10 10 0 400 Specimens, larger, in Cabinet with Thirteen Drawers 21 0 0 More extensive Collections...
Page x - FREDERICK M°CoY, FGS One vol., Royal 410. Plates, /i. is. A CATALOGUE OF THE COLLECTION OF CAMBRIAN AND SILURIAN FOSSILS contained in the Geological Museum of the University of Cambridge, by JW SALTER, FGS With a Portrait of PROFESSOR SEDGWICK.