The selection of explosives used in engineering and mining operations, by Clarence Hall and SP Howell. 1913. 50 pp., 3 pis., 7 figs. BULLETIN 52. Bulletin - Page 2361914Full view - About this book
| Earth sciences - 1913 - 690 pages
...States. — Recent publications include the following (see vol. xxxv, p. 330) : BULLETINS. — No. 48. Selection of explosives used in engineering and mining operations ; by CLARENCE HALL and SP HOWELL. Pp. 50 ; 3 pie., 7 figs. No. 52. Ignition of mine gases by the filaments of incandescent electric lamps... | |
| Science - 1913 - 1420 pages
...States. — Recent publications include the following (see vol. xxxv, p. 330) : BULLETINS. — No. 48. Selection of explosives used in engineering and mining operations ; by CLARENCE HALL and SP Ho WELL. Pp. 50 ; 3 pis., 7 tigs. No. 52. Ignition of mine gases by the filaments of incandescent electric... | |
| Lake Superior Mining Institute - Copper mines and mining - 1914 - 382 pages
...practically the same. The above investigations are described in detail in Bulletin 48, Bureau of Mines, "The Selection of Explosives Used in Engineering and Mining Operations" by Clarence Hall and Spencer P. Howell. The following statement regarding the work is of interest: "The mine tests, although... | |
| United States. Bureau of Mines - Mines and mineral resources - 1949 - 34 pages
...figs. BULLETIN 46. An investigation of explosion-proof mine motors, by HH Clark. 1912. 44 pp., 6 pis., 14 figs. BULLETIN 48. The selection of explosives...operations, by Clarence Hall and SP Howell. 1913. 50 pp., 3 pis., 7 figs. BULLETIN 52. Ignition of mine gases by the filaments of incandescent electric lamps,... | |
| United States. Bureau of Mines - Mines and mineral resources - 1914 - 78 pages
...workings in the Northern Anthracite Coal Basin of Pennsylvania, by NH Darton. 1913. 33 pp., 8 pis., 5 figs. BULLETIN 48. The selection of explosives used...operations, by Clarence Hall and SP Howell. 1913. 50 pp., 3 pis., 7 figs. BULLETIN 53. Mining and treatment of kaolin and feldspar in the southern Appalachian... | |
| United States. Bureau of Mines - Mines and mineral resources - 1911 - 1310 pages
...& 11 12 13 14 U 1C 17 18 6 10 10 Total 95 PUBLICATIONS ON MINE ACCIDENTS AND METHODS OF MINING. 1 1 48. The selection of explosives used in engineering...operations, by Clarence Hall and SP Howell. 1913. 50 pp., 3 pis., 7 figs. BUXLETTN 50. A laboratory study of the inflammability of coal dust, by JCW ftazer, EJ... | |
| United States. Bureau of Mines - Mines and mineral resources - 1918 - 118 pages
...figa. BULLETIN 46. An investigation of explosion-proof mine motors, by HH Clark. 1912. 44pp., 6 pis., 14 figs. BULLETIN 48. The selection of explosives...mining operations, by Clarence Hall and SP Howell. 1914. 50 pp., 3 pis., 7 figs. BULLETIN 50. A laboratory stuJy of the inflammability of coal dust, by... | |
| United States. Bureau of Mines - Mines and mineral resources - 58 pages
...Director, Bureau of Mines, for a copy of the latest list. PUBLICATIONS AVAILABLE FOB FREE DISTRIBUTION. BULLETIN 48. The selection of explosives used in engineering...mining operations, by Clarence Hall and SP Howell. 1914. 50 pp., 3 pis., 7 figs. BULLETIN 57. Safety and efficiency in mine tunneling, by DW Brunton and... | |
| Mines and mineral resources - 1911 - 968 pages
...flgs. BULLETIN 40. An Investigation of explosive-proof mine motors, by HH Clark. 1912. 44 pp., 6 pis., 14 figs. BULLETIN 48. The selection of explosives used in engineering and mining operations, 1-y Clarence Hull and SP Howell. 1913. 50 pp., 3 pis., 7 flgs. BULLETIN 52. Ignition of mine gases... | |
| Mines and mineral resources - 1912 - 860 pages
...Clark. 1912. 44 pp., 6 pk., 14 figs. BULLETIN 47. Notes on mineral wastes, by CL Parsons. 1912. 44 pp. BULLETIN 48. The selection of explosives used in engineering and mining operations, by Clarence Hall and SP Powell. 1913. 50 pp., 3 pis., 7 figs. BULLETIN 52. Ignition of mine gases by the filaments of incandescent... | |
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