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36 (XXXVI) — 1925-1926

Packing Material, 371.

Packing, Stuffing Boxes and, 212.

Panel Retreating, 244.

Parallel Forces, 68, 81.

Past and Present Students' Programme, 65.

Peat Industry, New, 58.

Permitted Explosives, 4.

Petroleum and Mining Industries, 263.

Phthisis, Miners', 153, 217.

Pillar, Plan of Supporting, 51.

Pillars, Dimensions of, 147.

Piston Rods, 62.

Pit Ponies Derby, 32, 379.

Pitch Circles, Diameter, 223.

Pithead Baths, 33, 263, 279.

Pits, Efficient, 267.

Plans, 96, 126, 354.

Powdered Fuel, 177.

Power Calculation, 242.

Power, Electric, 420.

Power, Work and, 395, 406.

Practical Mining, 141, 149, 184.

Precautions, Coal Dust, 236.

Precautions, Need for Safety, 201.

Pressure Reducing Valves, 356.

Pressure Wave of Explosives, 292.

Pressure, Conversion to Velocity Energy, 84.

Pressures, Gauge for Measuring, 201.

Prize Competition, 12, 29, 45, 60, 76, 93, 107, 125, 140, 157, 173, 189, 205, 221, 236, 252, 269, 288, 304, 320, 337, 352, 369, 384, 399.

Prize Competition Awards, 413.

Problem, Co-ordinate, 117.

Problem, Fault, 3.

Problem, Haulage, 22.

Problem, Steam Engine, 133.

Problem, Triangulation and Traverse, 117.

Problem, Trigonometrical, 47.

Problem, Tunnel, 233.

Problem, Ventilation, 23, 176, 236, 339.

Problem, Winding Engine, 2, 272, 291.

Problems, Mine Survevors', 73, 103, 138, 150, 162, 178, 193, 215, 226, 250, 258, 280, 298, 319, 327, 344, 366, 382, 398, 416.

Problems, Miscellaneous, 56.

Progress, Mining, 209.

Psychology, Industrial, 346.

Pulverised Coal, 309.

Pump Valves, 60.

Pumps and Pumping, 47, 190, 211, 228, 419.