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59 (LIX) — 1948-1949
L. and C. Miners' Permanent Relief Society, 285.
Lamps, Illuminating Power of, 190.
Landslides, 138, 147, 158.
Larch Bar, Strength of, 286.
Lea, Mr. Walter, Death of, 246.
Levelling Book, Page of, 290.
Levelling Instrument, Testing and Adjustment, 173.
Levelling, Surveying and, 1, 18, 30, 38, 51, 64, 80, 91, 98, 114, 126, 146, 160, 172, 182, 194, 206, 219, 234, 241, 258, 265, 278, 289, 302.
Limits of Inflammability, 3, 11.
Linen Tape, Use of, 30.
Lining Off Packs, 130.
Liquid Air, 281.
Llanharan Horizon Mining Project, 101.
Locomotive Haulage Roadway on Plan, 126.
Locomotive Transport, 5, 12, 15, 25, 37, 50, 66.
Logarithms, 135.
Longitude, Length of 1 Degree, 289.
Longwall Face, Supports on, 274.
Loose-needle Traverse, 126.
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