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49 (XLIX) — 1938-1939
National Coal Convention, 116.
News, General, 4, 5, 10, 16, 21, 23, 25, 32, 36, 39, 48, 53, 59, 69, 71, 73, 74, 100, 103, 117, 128, 135, 147, 149, 155, 165, 168, 169, 171, 176, 179, 183, 195, 213, 215, 227, 235, 243, 245, 247, 261, 264, 291, 298, 304, 307, 310, 311, 325, 329, 336, 356, 359, 364, 371, 373, 375, 380, 391, 395, 405, 409, 411.
Noise in Mines, 36, 405.
North Midland 1937 Report, 4.
North Wales, Main Seam, 203.
Northern 1937 Report, 58.
Notes, Coal Convention, 167.
Notes, May Examinations, 65, 90, 106.
Notes, November Examinations, 296, 314, 326.
Nystagmus, Lighting and, 100, 122.
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