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41 (XLI) — 1930-1931

Pantomime, Pit-boys Produce, 185.

Paper No. 17, Physical Survey, 89.

Paper No. 26, Technical, 58.

Paper No. 27, Scientific, 117.

Paper No. 65, Research Board, 300.

Paper No. 66, S.M.R.B., 370.

Paper No. 67, S.M.R.B., 410.

Paralised Miner's Fortitude, 327.

Pension Scheme, 49.

Petrographic Treatment of Coal, 251.

Petrol from Coal, 8.

Physics, 350.

Picks, Mechanical, 371.

Picks, Tipped Coal-cutter, 168.

Pillar and Stall, 64.

Pinxton Model Engineers, 345.

Pipes and Pipe Joints, 196.

Pit Ponies, 33, 257, 309, 375.

Pithead Arrangements, 386, 401.

Pithead Baths, 5, 38, 57, 72, 107, 172, 225, 265, 293, 312.

Pithead Plan, 127.

Plans, 14, 96, 360.

Plans, Abandoned Mines, 96, 360.

Plenum System of Heating, 267.

Poultry Show, 133.

Powdered Coal Combustion, 203, 211.

Powdered Fuel, 145, 170, 277, 283, 312, 332.

Power Factor, 106.

Power Problems, 42.

Premonition of Death, 312.

Preparation of Coal, 328.

Presentations, 37, 124, 220.

Pressure on Coal, 158.

Pressure Problem, 46.

Primers, Dummy, 236.

Prince Descends Mine, 312.

Priory as Convalescent Home, 55.

Prize Competition, 12, 29, 45, 61, 77, 92, 109, 125, 141, 157, 173, 189, 205, 221, 237, 253, 269, 285, 302, 318, 332, 349, 365, 380, 397, 413.

Prize Competition Awards, 404.

Problems, Answers to, 17, 42, 49, 74, 83, 102, 114, 131, 169, 170, 187, 199, 209, 227, 229, 279, 290, 308, 310, 326, 330, 340, 342, 356, 372, 373.

Problems, Electrical, 168.

Properties of Strata, 173.

Pulley Wheel, Replacing, 377.

Pulley, Fencing, 303.

Pump Testing, 140, 154.

Pumping Plant, 7, 19, 36, 59, 76, 82, 99, 118, 140, 154, 178, 196, 206, 214, 226, 244, 259, 274, 289, 308, 330, 340, 356, 373.

Pumping Propositions, 118.

Pumps and Pumping, 49, 126, 253.

Purchase of Equipment, 194.

Purification of Coal, 200.