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47 (XLVII) — 1936-1937
Lancashire Coal Seam, 105.
Lancashire Fuels, 234.
Lancashire, Exploration Work, 195.
Lancashire's Coal Industry, 91.
Landings, Intermediate, 14.
Lead Mining in N. Wales, 2.
Leadership, Appeal for, 279.
Length, Measurement of, 214.
Light and Accidents, 227.
Lighting Regulations, 151.
Lighting, Mine, 82, 117, 151, 170, 226, 345, 353.
Line of Face, 141, 225.
Liquid Pressure, 274.
List of Mines, 101.
Llanelly Institute, 151.
Llangollen Survey Camp, 347.
Load of Strata, 196.
Locomotives, Coal-fire, 213.
Longwall Advancing, 146.
Longwall Conveyor Faces, 209.
Low-tension Battery Exploder, 162.
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