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57 (LVII) — 1946-1947
Ignitions, Causes of, 152.
Illuminating Power of Safety-lamps, 179.
Inaccessible Distance, 65.
Indian Coal Dusts, 280.
Inflammable Gas, Testing for, 200.
Influence of Temperature and Pressure on Gas, 35.
Institution of Mining Engineers, 117, 177, 212.
Intrinsic Safety of Electrical Apparatus, 101.
Intrinsically Safe and Remote Control Circuits, 117.
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