The Quarterly Journal of the Geological Society of London, 23권The Society, 1867 Vols. 1-108 include Proceedings of the society (separately paged, beginning with v. 30) |
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lv 페이지
... valley in North Wales occupied by Silurian rocks . A brief sketch of the surrounding later formations is also given ... valleys . Certain of the terms thus employed involve an assumption as to the origin of the alleged volcanic sub ...
... valley in North Wales occupied by Silurian rocks . A brief sketch of the surrounding later formations is also given ... valleys . Certain of the terms thus employed involve an assumption as to the origin of the alleged volcanic sub ...
6 페이지
... valley , imbedded in situ , an animal which , from proofs in my possession , I believe to be a representative animal , or at least the type of a genus , which inhabited a large extent of country . " When I send this animal I will ...
... valley , imbedded in situ , an animal which , from proofs in my possession , I believe to be a representative animal , or at least the type of a genus , which inhabited a large extent of country . " When I send this animal I will ...
40 페이지
... valley , commencing opposite the Island of Philæ , and joining the Nile valley again about three miles below Assouan . Through this valley the Nile may have formerly flowed , as freshwater shells and deposits of Nile - mud are found at ...
... valley , commencing opposite the Island of Philæ , and joining the Nile valley again about three miles below Assouan . Through this valley the Nile may have formerly flowed , as freshwater shells and deposits of Nile - mud are found at ...
42 페이지
... valleys of the Tyne , the Allen , and the Devil's Water . On the Tyne valley it is found to occur about half a mile below Slaggyford ; in the Allen , some 24 miles above Allen Town ; and in that of the Devil's Water , a little below ...
... valleys of the Tyne , the Allen , and the Devil's Water . On the Tyne valley it is found to occur about half a mile below Slaggyford ; in the Allen , some 24 miles above Allen Town ; and in that of the Devil's Water , a little below ...
43 페이지
... valley to the southern bank against which it lodges . The Drift reaches up the valley of the Derwent a little above Blanchland , and up that of the Edmondbyers Burn as far as Edmond- byers . On the ridge between this burn and Icehope ...
... valley to the southern bank against which it lodges . The Drift reaches up the valley of the Derwent a little above Blanchland , and up that of the Edmondbyers Burn as far as Edmond- byers . On the ridge between this burn and Icehope ...
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Ammonites appear Avicula base beds Belemnites bones Boulder-clay Brachiopoda Brick-earths British Brocastle Bucklandi calcareous Carboniferous Limestone cavern chalk clay Clod Coal-measures conglomerate containing corals Crustacea denudation deposits Devonian Devonian rocks district Drift east Eurypterus fauna feet flint formation fossiliferous fossils fragments genera genus Geol Geological Society Glacial Goldf granite gravel grey grits Hill Hunstanton Ilfracombe inches incurva Journ Keuper Liassic Lima lime Lower Lias Lynton marl Martin mass Middle Devonian miles mineral Montlivaltia Moore North Devon noticed numerous occur Old Red Sandstone Oolite organic remains Ostrea Pecten Phill planorbis plate portion posterior Postglacial present Professor Pterygotus quarry quartz Rhætic river sand Schloth shales shells side siliceous Silurian slates Southerndown spec species specimens strata striæ structure surface Sutton Stone Terq Thames thickness tion Uitenhage unconformably Upper Devonian valley veins White Lias whorls zone of Ammonites
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318 페이지 - supported wholly or in part by annual voluntary contributions, and shall not, and " by its laws may not, make any dividend, gift, division, or bonus in money unto or " between any of its members, and provided also that such society shall obtain the " certificate of the barrister-at-law or lord advocate, as hereinafter mentioned.
253 페이지 - This very interesting specimen, submitted to me for examination by Sir. WE Logan, is, in my opinion, of great importance, as furnishing a conclusive answer to all those objections to the organic nature of Eozoon which have been founded on comparisons of its structures with the forms of fibrous, dendritic, or concretionary minerals, — objections which, however plausible in the case of highly crystalline rocks, in which organic remains may be simulated by merely mineral appearances readily confounded...
xlii 페이지 - ... travels twice as fast as the Roman Emperor ; and twenty years hence, he may probably travel with a speed that would leave the fleetest courser behind.
lxv 페이지 - These observations bring the formation of silicious minerals face to face with life, and show that their generation was not incompatible with the contemporaneous existence and the preservation of organic forms. They confirm, moreover, the view which I some years since put forward, that these silicated minerals have been formed, not by subsequent metamorphism in deeply buried sediments, but by reactions going on at the earth's surface...
72 페이지 - Annual Report of the Trustees of the Museum of Comparative Zoology at Harvard College in Cambridge, together with the Report of the Director 1866.
413 페이지 - ... rates of economic growth, productivity and technological innovation. Higher productivity growth and technological innovation will generate more resources for financing industrial restructuring and vocational retraining, thereby increasing political support for economic liberalization. At the same time, it is of the utmost importance to bear in mind that there is no single optimal policy stance that is applicable to all countries at all levels of development. A simple replication of policies that...
106 페이지 - As a contribution to the evidence on the geological position of the blocks of saccharoid sandstone scattered on the surface of many parts of the chalk-districts, I beg to lay before the Society a brief account of the occurrence of similar blocks of large size in the Drift of Suffolk, both in situ and on the surface.
lxiv 페이지 - In conclusion, the author showed that the various silicates already mentioned were directly deposited in waters in the midst of which the Eozoo'n was still growing or had only recently perished, and that they penetrated, enclosed, and preserved the structure of the organisms precisely as carbonate of lime might have done ; and he cites these and other facts in support of his opinion that these silicated minerals were formed, not by subsequent rnetamorphism in deeply buried sediments, but by reactions...
256 페이지 - In a few places a tubulated cell wall is preserved, with structure similar to that of Eozoon Canadense. Specimens of Laurentian limestone from Wentworth, in the collection of the Geological Survey, exhibit many rounded siliceous bodies, some of which are apparently grains of sand, or small pebbles ; but others, especially when freed from the calcareous matter by a dilute acid, appear as rounded bodies, with rough surfaces, either separate or aggregated in lines or groups, and having minute vermicular...
xx 페이지 - To promote researches concerning the mineral structure of the earth, and to enable the Council of the Geological Society to reward those individuals of any country by whom such researches may hereafter be made,' — ( such individual not being a Member of the Council.