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39 (XXXIX) — 1928-1929
Laboratories, Research, Opening, 108.
Lamp Accumulators, Charging, 54.
Lamps, Illuminating Power, 258.
Lancashire Coal Measures, 137.
Lancashire Report, 131, 149.
Layout of District, 77.
Lead Mine, Old Providence, 315.
Leeds Students' Journal, 124.
Levelling, 46, 334.
Levels, Finding Difference, 190.
Lewis, L., Presentation, 288.
Life-saving Doors, 232, 295.
Light and Shadow, 244.
Light, Character of, 230.
Linear and Vol. Expansion, 134.
Live Loads on Winding Ropes, 358, 378, 386, 409.
Loading Machines, 123, 143, 182.
Locos., Electrically Driven, 408.
Locos., Storage Battery, 42.
Londonderry Colliery Sinking, 7.
Louis, Prof., Pres., I.S.L, 212.
Low Temp. Carbonisation, 33, 82, 105, 251, 283, 364, 376.
Lubrication of Tubs, 273.
Lytham Convalescent Home, 32.
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