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53 (LIII) — 1942-1943
Packing, 130.
Pennsylvania Anthracite Area, 40.
Perfect Miner, 87.
Pillar and Stall, 180.
Pillar, Partial Extraction, 306.
Pillar, Tonnage in, 143.
Pipes, Installation of, 94.
Piston Pump, 298.
Pit Boys Visit King's College, 170.
Pithead Canteen, 41.
Pneumatic Stowing, 242.
Pneumokoniosis Committee Appointed, 291.
Potential Energy, Coal, 171.
Power Factor, 24.
Power Loading Underground, 134, 215, 225, 270, 299.
Power Required, Locomotive Traction, 18.
Preservation of Timber, 4.
Pressure Surveys, 131.
Principles Coal Washing, 13, 168.
Prize Competition, 8, 20, 32, 44, 56, 68, 80, 92, 104, 116, 129, 141, 153, 165, 177, 189, 201, 212, 226, 237, 249, 261, 272, 285, 297.
Prize Competition Awards, 7.
Product and Proceeds, 288.
Prop Resistance, 210.
Prop Tests, 222.
Props : Steel v. Wooden, 154, 202.
Props, Steel, 310.
Props, Withdrawing, 80.
Prospects, Mining Industry, 18.
Pumping, Electricity in Mine, 148.
Pumps, Shaft, 12.
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