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49 (XLIX) — 1938-1939
Lamp Comparisons, 239.
Lancashire Pits, Flooded, 39.
Lay Out of Mine, 111.
Lead Mines, Surveyors Visit, 6.
Lead, Zinc and, 393.
Legislation Development, 246, 392, 416.
Lids, Investigation, 101.
Light Distribution, Cap-lamp, 54.
Lighting, 201.
Lighting at Sidings, 305.
Lighting Inclines, 215.
Lighting Powers, 222.
Lime, Uses of, 324.
Longwall, 154, 255.
Lothians Rescue Competition, 3.
Lubrication, Rock Drill, 244.
Lubrication, Rope, 229.
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