 | 1841 - 646 páginas
...about one-third that of the vegetable matter out of which it was produced. A paper was lastly read, " On the character of the beds of clay lying immediately below the coal seams of South Wales ; and on the occurrence of. coal-boulders in the Pennant grit of that district;"... | |
 | 1841 - 1316 páginas
...about one-third that of the vegetable matter out of which it was produced. A paper was lastly read, " On the character of the beds of clay lying immediately below the coal seams of South Wales ; and on the occurrence of coal-boulders in the Pennant grit of that district... | |
 | Royal School of Mines (Great Britain) - 1852 - 578 páginas
...circumstance to the Geological Society of London, in a paper entitled " On the Character of the Beds of Clay immediately below the Coal-Seams of South Wales, and on the Occurrence of Boulders of Coal in the Pennant Grit of that District." This memoir was published in the Transactions... | |
 | Louis Agassiz - 1853 - 674 páginas
...and Carmarthen Bay. — Rep. Brit. Assoc. 1837, Sect. p. 83. 2. On the Characters of the Beds of Clay immediately below the Coal-seams of South Wales, and on the occurrence of Boulders of Coal in the Pennant Grit of that District. — Trans. Geol. Soc. ser. 2, VI. p. 4.91. —... | |
 | Joseph Beete Jukes - 1859 - 276 páginas
...circumstance to the Geological Society of London, in a paper entitled " On the Character of the Beds of Clay immediately below the Coal-Seams of South Wales, and on the Occurrence of Boulders of Coal in the Pennant Grit of that District." This memoir was published in the Transactions... | |
 | Albrecht Schrauf - 1864 - 364 páginas
...gehörigen Schmelzwerke und Fabriken. Leipzig. ISuO. 8. Logall, WE On the Characters of the Beds of Clay immediately below the Coal-Seams of South Wales, and on the occurrence of Boulders of Coal in the Pennant Grit of that district. (Aus d. Trans. Brit. geol. Soc.) London. 1840.... | |
 | Royal Society (Great Britain) - 1870 - 1022 páginas
...which lies between the Vale of Neath and Carmarthen Bay. Brit. Assoc. Rep. 1837 (pt. 2), pp. 83-85. 2. On the character of the beds of clay lying immediately below the coal seams of South Wales ; and on the occurrence of coal-boulders in the Pennant grit of that district.... | |
 | John Evans - 1876 - 94 páginas
...geological pursuits. His first geological paper was "On that part of the South Welsh Coal Basin, which lies between the Vale of Neath and Carmarthen Bay,"...coal-seam rests on an underclay, with rootlets of Stigmaria in it, and suggested that this was the soil in which the Stigmaria grew, and that * For many... | |
 | British Association for the Advancement of Science. Meeting - 1880 - 978 páginas
...Soc. Manchester, ser. 2, vol. vi. p. 524. (259) LOGAN [Sir] WE On the Characters of the Beds of Clay immediately below the Coal-seams of South Wales, and on the occurrence of Boulders of Coal in the Pennant Grit of that district. Trans. Geol, Soc. ser. 2, vol. vi. p. 491. (260)... | |
 | British Association for the Advancement of Science - 1880 - 982 páginas
...Soc. Manchester, ser. 2, vol. vi. p. 524. (259) LOGAN [Sir] WE On the Characters of the Beds of Clay immediately below the Coal-seams of South Wales, and on the occurrence of Boulders of Coal in the Pennant Grit of that district. Trans. Geol. Soc. ser. 2, vol. vi. p. 491. (260)... | |
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On the character of the beds of Clay lying immediately below the Coal-seams of South Wales, and on the occurrence of Coal-boulders in the Pennant Grit of that district, 
