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41 (XLI) — 1930-1931
Bands, Colliery, 389.
Barometer, 174.
Barries at Keswick, 147.
Baths, Pithead, 5, 38, 57, 72, 107, 172, 225, 265, 293, 312.
Batteries, Shot-firing, 2.
Bends Iron Bars, 361.
Blackdamp, 116.
Block and Tackle, 107.
Board for Mining Examinations, 57, 58, 259.
Boiler Installation and P.P., 170.
Boiler Minder's Duties, 77.
Boiler Plates, 287.
Bolsover Collieries, 331.
Bond, Pitman's, 1.
Borehole Problem, 400.
Boreholes, Surveying, 159.
Boring, 255, 303.
Boys, Accidents to, 185.
Brabbon, Dixon, Death, 325.
Brattice Cloths, Leakage, 210.
Breakage, Coal, Reducing, 147.
Breaking Down Coal, 67.
Breathing Apparatus Precautions, 61.
Brick Arch, Enlarging, 31.
Brickwork and Concrete, 254.
Briquettes, 12.
Bristol Coalfield Possibilities, 131.
British Association, 96.
British Coal Delegation Report, 137.
British Columbia Output, 265.
British Mines Safest, 115.
Brown Coal Carbonisation, 368.
Brown, M.P., James, "Freedom", 16.
By-products, Coal, 28.
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