 | 1841 - 646 sider
...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...coal-boulders in the Pennant grit of that district;" by William Edmond Logan, Esq., FGS Immediately below every regular seam of coal, in South Wales, (and... | |
 | 1841 - 1316 sider
...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...coal-boulders in the Pennant grit of that district ;" by William Edmond Logan, Esq., FGS Immediately below every regular seam of coal, in South Wales,... | |
 | Geological Society of London - 1845 - 654 sider
...as Geological Tests, pp. 7. [v. 18. 10 If) 52. LOGAN, WE, FGS 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, pp. 7. [vi. 29. 16 20 53. LONSDALE, William,... | |
 | Royal School of Mines (Great Britain) - 1853 - 216 sider
...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... | |
 | Henry James Morgan - 1867 - 438 sider
...Barrande, Pari?. 1863. Transactions of the Geological Soc. (Lon.< I. 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. 1840. II. On the Packing of the Ice on the River... | |
 | 1870 - 280 sider
...1. 17. jm. 24. Logan, WE 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. 6. tt. 491; 3. p. 275. Ludwig, M. On the Coal-mines of Offenburg. 14. jm. 26. , On the Coal-fields... | |
 | John Evans - 1876 - 94 sider
...Carmarthen Bay," which was communicated to the British Association in 1837. In 1840 his important paper " 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,"... | |
 | Bernard James Harrington - 1883 - 468 sider
...the Geology of Canada. APPENDIX B. LIST OP SIR WILLIAM LOGAN'S MORE IMPORTANT PAPERS, REPORTS, &c. On the Character of the Beds of Clay lying immediately below the Coalseams of South Wales, and on the Occurrence of Coal Boulders in the v — ' 5 0 . Pennant Grit... | |
 | 1885 - 670 sider
...at the present time in modern bogs. .. The third paper was by Sir William Logan (then Mr. Logan), " On the character of the beds of clay lying immediately...coal seams of South Wales; and on the occurrence of coal-bouldera in the Pennant Grit of that district." This is the well-known paper in which it was pointed... | |
 | Royal Microscopical Society (Great Britain) - 1885 - 660 sider
...do at the present time in modem bogs. The third paper was by Sir William Logan (then Mr. Logan), " On the character of the beds of clay lying immediately...coal seams of South Wales ; and on the occurrence of coal-boolders in the Pennant Grit of that district." This is the well-known paper in which it was pointed... | |
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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. 
