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42 (XLII) — 1931-1932
Lads v. Ponies, 245.
Lamp Clip, 1.
Lamp3, Electric, Lighting Standard, 84.
Lamps and Reflectors, 81.
Lamps, Determining C.P., 253.
Lancashire Boiler, 31, 351.
Lancashire Boiler Firebar, 222.
Lancashire Haulage Accidents, 322.
Lancashire Research Work, 55, 88.
Lancashire, S.E., Coalfield, 71.
Lawton, Edward, Jubilee, 152.
Laying Out Roadways, 95.
Lead Mine Closes, 27.
Leading Coal Counties, 65.
Legal Aspect, 123.
Legislation Effects, 117.
Lessing Plant, 280.
Lessons Accidents Teach, 170.
Light Intensity, Glasses, 107.
Lighting, Discussion, 92.
Lighting, Electric, 202, 341.
Lighting, Underground, 146, 233, 235, 261, 280, 299, 304.
Lightning Arresters, 115.
Limitation of Current, 114.
Lining Shaft, 45.
Liquid Matter, Working Under, 164.
List of Mines, 133.
Llanelly Institute, 103.
Llwynypia Colliery Disaster, 249, 275.
Loader, Joy, 84.
Loading, Coal, 82, 149, 309.
Longwall Problems, 186.
Longwall, Safety in, 148.
Low Temperature Carbonisation, 122, 145, 160, 172.
Lower Mountain Mine, 38.
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