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59 (LIX) — 1948-1949
Hamstead, Man-riding Trains, 100.
Haulage Accidents, 145.
Haulage, Power to Drive, 132.
Horden Jaunting Car, 111.
Horizon Mining, Advantages, 288.
Horizon, Closing the, 259.
Horizontal Angle, Precise Measurement of, 137.
Horse-power of Pump, 118.
Horses Employed Underground, 165.
Hunslet Locomotives, 50, 66.
Hydrogen Sulphide, Detection of, 196.
Hygrometer, 58, 189, 214, 261, 305.
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