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39 (XXXIX) — 1928-1929
Barricades Save Lives, 400.
Baths, Pithead, 52, 59, 108, 137, 167, 199, 204, 215, 225, 235, 249, 295, 336, 391.
Bells, Mine Signalling, 204.
Birmingham Research Report, 3.
Bituminous Coal Components, 28.
Black-damp, 90.
Blast Furnace Plant, 343.
Blasting Caps, 85.
Blasting Dangers, 141.
Blasting Units, Permissible, 113.
Block Signals for Haulage, 96.
Blowers, Gas, 205, 236.
Boiler Corrosion, 75.
Boiler Plate Embrittlement, 59.
Boilers, 15, 157.
Boilers, Act and, 126.
Bolts, Strength of, 390.
Borehole Outfit, One-man, 168.
Boring Against Workings, 346.
Boring Methods, 14, 140.
Boyle's Law, 66.
Boys (14-year-old) Heroism, 357.
Boys, Employment of, 110, 135.
Boys, Training, 202.
Brakes, 297.
Breathing Apparatus, 157.
Brickwork Calculations, 159.
Briquette Manufacture, U.S., 5.
Briquettes, 85, 117.
Britain, Coal Indispensable, 84.
Browne, J. T., President, Lancashire Association, 137.
Brynderi Colliery Developments, 273, 329.
Bureau Rescuers at Hollinger, 5.
Burning, Relative Time, 235.
Burnt Outcrops, 385.
Buxton, Explosion Demonstration, 20.
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