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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252 페이지
... Devonian or Ilfracombe group . The highest beds , containing Myalina and Natica , insensibly pass into the gritty ... Devonian fauna of Britain with that of the Rhine , Belgium , and France , by means of a series of Tables based upon the ...
... Devonian or Ilfracombe group . The highest beds , containing Myalina and Natica , insensibly pass into the gritty ... Devonian fauna of Britain with that of the Rhine , Belgium , and France , by means of a series of Tables based upon the ...
372 페이지
... Devonian Monograph . I am further indebted to Mr. Etheridge for his kindness in adding to my list the name of the author by whom each species was originally named . 2. SUBDIVISION OF THE NORTH DEVON ROCKS . The series of slates and ...
... Devonian Monograph . I am further indebted to Mr. Etheridge for his kindness in adding to my list the name of the author by whom each species was originally named . 2. SUBDIVISION OF THE NORTH DEVON ROCKS . The series of slates and ...
381 페이지
... Devonian Brachiopoda , refers it to the Carboniferous species L. squamiformis , and remarks that " it is difficult to obtain specimens preserving their natural shape , almost every example being deformed or put out of shape from the ...
... Devonian Brachiopoda , refers it to the Carboniferous species L. squamiformis , and remarks that " it is difficult to obtain specimens preserving their natural shape , almost every example being deformed or put out of shape from the ...
568 페이지
... DEVONIAN FOSSILS . By ROBERT ETHERIDGE , Esq . , F.G.S. , F.R.S.E. , Palæontologist to the Geological Survey of ... Devonian Group . 1. Porlock to Lynton . 2. Foreland , east of the River Lynn . 3. Woodabay and Heddon's Mouth . 4 ...
... DEVONIAN FOSSILS . By ROBERT ETHERIDGE , Esq . , F.G.S. , F.R.S.E. , Palæontologist to the Geological Survey of ... Devonian Group . 1. Porlock to Lynton . 2. Foreland , east of the River Lynn . 3. Woodabay and Heddon's Mouth . 4 ...
570 페이지
... Devonian series; succeeding these are red sandstones and slates, well-defined calcareous masses, and bands of limestone, which constitute the Middle Devonian or Ilfracombe group ; these are surmounted by a thick zone of red sandstones ...
... Devonian series; succeeding these are red sandstones and slates, well-defined calcareous masses, and bands of limestone, which constitute the Middle Devonian or Ilfracombe group ; these are surmounted by a thick zone of red sandstones ...
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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.