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56 (LVI) — 1945-1946
Accidents in Mines, 16, 38, 89, 103, 137, 173, 216, 233, 248.
Adjustment of Angles, 278.
Aerex Mine Fan, 253.
Afterdamp, Percentage Composition, 9, 201.
Air Drill, 251.
Air Horse-power, 253.
Air in Pipe Ranges, 155.
Air Pressure, 48.
Airborne Dust Conditions in S. Wales, 16.
Air-crossing, 225.
Air-currents, Drying and Cooling Power of, 207.
Airway, Breadth and Height of, 201.
Airway, Length of, 226.
Anemometer, 154.
Angles, Measurement of, 279.
Answers to Correspondents, 7, 14, 17, 40, 48, 51, 55, 62, 63, 65, 73, 91, 98, 123, 125, 133, 136, 148, 161, 177, 184, 189, 194, 207, 220, 229, 237, 243, 254, 265, 270, 292, 300.
Answers to Examination Questions, 2, 4, 13, 14, 25, 26, 41, 44, 56, 65, 75, 83, 102, 111, 121, 140, 148, 159, 169, 182, 197, 207, 224, 232, 241, 253, 269, 280, 289, 303.
Approaching Waste Workings Containing Water, 10, 149.
Arched Supports, 250.
Area of Enclosure on Plan, 118.
Areas, Determination of, 64, 113, 123, 136.
Arenaceous Rocks, 234.
Ascentional Ventilation, 208.
Atmospheric Air, Composition of, 286.
Automatic Air Doors, 179.
Automatic Haulage Devices, 22.
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