Lanark Mining Classes, 9.
Lancashire Boilers, 334.
Lancashire Report, 184.
Landslides, 315.
Laws of Friction, 60.
Laying-off Workings for Ventilation, 93.
Leeds University, Developing, 293.
Levelling, Surveying and, 2, 27, 40, 50, 70, 86, 100, 114, 138, 151, 162, 178, 195, 214, 226, 249, 266, 274, 292, 307, 326, 340, 354.
Lift Pump, 221.
Lighting, Underground, 202.
Liquid Fuel from Coal, 216.
List of Mines, 197.
Live Electrical Conductors, 404.
Loading, Mechanical, 88, 137, 187.
Local Timbering Committees, 313.
Locking Safety-lamps, 238.
Locomotives, Colliery, 242.
Locomotives, Storage Battery, 282.
Longwall in Nova Scotia, 140.
Low Freezing Explosives, 140.
Low Temperature Carbonisation, 90, 170, 277, 324, 351.
Lowe, John, Note, 361.
Lubrication, 45.