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40 (XL) — 1929-1930
Babcock Carbonisation Plant, 326.
Bailey, Thomas, Retires, 320.
Banded Coal, 146.
Bar, Length of, 286.
Barometric Pressure, 35, 402.
Baths, Pithead, 43, 59, 97, 167, 183, 185, 209, 245, 251, 263, 273, 280, 336, 347, 363.
Battery Locomotive Tests, 68.
Beam, Strength of, 46.
Bell, Thomas, Death, 12.
Belt Loaders, 167.
Belt Speeds, 243.
Bill, Coal Mines, 184.
Birkenhead, Conveyor for, 80.
Birmingham, Research, etc., at, 54, 147.
Bishop's Plan, 245.
Bishop's, Swansea Gift, 12.
Blackett, Washer, 375.
Blackett's Aerophor Apparatus, 98.
Blasting, Liquid CO2, 273.
Blood Poisoning, Treatment, 58.
Boiler Attendants, Advice, 305.
Boiler Explosion, 389.
Boiler Water, 190.
Boiler, Economiser in, 272.
Boom, Ancient, Recalled, 341.
Boreholes, Use of, 404.
Boring Rods, 398.
Boys' Training, 214.
Bricking Scaffolds, 63.
Brick-lifting Feat, 1.
British Columbia Dividends, 323.
Brown, James, P.C., 288.
Bucket, Pumps, 348, 372.
Bumps in Mines, 17, 356.
Buxton, L. S., Sketch, 114.
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