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42 (XLII) — 1931-1932

Back to Coal, 119, 297, 311, 329, 343, 405.

Balances, Underground Haulage, 354.

Balanco Jigs, 2.

Band, Colliery, Record, 124.

Banking of Coal, 106.

Bar, Breaking, 414.

Barnsley Coal, Uses, 24.

Barnsley Seam, 17.

Barometers, 54.

Baths, Pithead, 85, 119, 160, 177, 209, 211, 264, 316, 369.

Battery, Storage, 112.

Baum Washing Plants, 394.

Bell Conveyors, 19, 21, 124, 222.

Belts, Hand-picking, 82.

Bentley Explosion, 152, 161, 184, 209.

Birtley Separation Plant, 198.

Black Diamonds, 384.

Blackdamp, 97.

Blasting, Safety in, 134.

Blyth Shipping Devices, 137.

Board for Mining Examinations, 49, 261.

Board for Scottish Scheme, 165.

Boiler Fittings, 269.

Boiler Stoker, Mechanical, 31.

Boilers, Evaporation, 399.

Boils, Incidence of, 283.

Books for Miners' Clubs, 343.

Boom and Slack Periods, 60.

Borehole Problem, 382.

Bowhill Pit Disaster, 136, 232, 309.

Boys, Training, 282.

Breathing Apparatus, 63.

Breeding of Pit Ponies, 309.

Brereton Surveying Instrument, 113.

Brick Stoppings, Preventing Crush, 182.

Briquettes, 364.

Britain, Roman Mining in, 404.

Bumps in Mines, 176.

Buxton Safety Conference, 10.

Buzza Screen, 139.

By-products, 5, 10, 32, 256.