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57 (LVII) — 1946-1947
Pacing, 79.
Packing Material, 258.
Pedometer, 79.
Percentage Extraction of Seam, 28, 53.
Percy, Mr. C. M., 1846-1903, 15.
Permian Rocks, 128.
Pillar and Stall Seam, Plan, 202.
Pipe Clamps, 113.
Pipe Range, 11.
Piston Pump, 154.
Pit Debris, Volume of, 17.
Pit Tubs, Capacity of, 2.
Pitot Tube, 23.
Pliocene Rocks, 133.
Plotting by Chords, 241.
Plotting by Protractor, 230.
Plotting by Rectangular Co-ordinates, 256.
Plotting Survey, 59.
Pneumatic Pick, 282.
Pneumatic Picks, Suppression of Dust from, 120.
Polygon, Equalising a, 38.
Post-Glacial Period, 133.
Power Factor Correction, 26.
Power to Propel Air, 143.
Pressure Belts, 41.
Pressure Survey, 106.
Prize Competition, 10, 22, 34, 45, 58, 70, 82, 93, 105, 118, 129, 142, 154, 166, 178, 180, 202, 213, 226, 238, 250, 262, 274, 286.
Prize Competition Awards, 291.
Problems of Early Metallurgy, 129.
Problems, Surveying, 6, 16, 27, 37, 52, 65.
Properties of Metals, 231.
Pumping Calculation, 59, 154, 215, 227, 259.
Pumps, Merits of, 237.
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