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60 (LX) — 1949-1950
B.J.D. Coal-cutter, 120.
Barometer, 58, 136, 147.
Bearing, Putting on a, 203.
Belts and Chains, Power Transmission by, 102.
Bennett College, 175.
Bevel Gear, 181.
Bodies in Motion, 50.
Body Temperature, Control of, 137.
Boiler, Efficiency of, 216.
Book Reviews, 7, 31, 99, 132, 160, 176, 213.
Booster Fans, 25.
Borehole, Survey of, 52.
Boyle's Law, 179, 271.
Brake H.P., 251.
Brakes and Dynamometers, 37.
Breathing Apparatus, 3, 24.
Brick Coffering, 78.
Bricking Scaffold, 29.
Burnley Mining Society, 66.
Burnside Boring Machine, 188.
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