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58 (LVIII) — 1947-1948
A.B. Dreadnought Universal Arcwall Shearer, 109.
A.B. Fifteen Arcwaller, 109.
A.C. 3-phase Induction Motors, 304.
Accidents at Mines, 37, 117, 125, 163, 212, 224, 255, 278.
Adiabatic Compression, 143.
Air Horse-power, 262.
Air Pick, 184.
Air-splitting Calculation, 299.
Alternating Current Motors, 290, 304.
Alternating Currents, 182, 194, 243, 253.
Alternators, Rotors and Stators, 243.
Anglesey Coalfield, 161.
Answers to Correspondents, 8, 16, 31, 39, 50, 92, 103, 110, 122, 158, 175, 184, 196, 208, 221, 245, 259, 265, 283, 293, 302.
Answers to Examination Questions, 7.
Archimedes, Principle of, 69.
Arcwall Coal-cutters, Driving Stalls with, 109.
Arcwalling, 95, 109.
Area of Enclosure, 156, 192.
Atmospheric Pressure, 140.
Ayrshire (Clyde) Coalfield, 232.
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