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56 (LVI) — 1945-1946

Macdonald, Sir Gordon, 189.

Machine Mining, Future of, 150, 157.

Machinery, 75, 85, 169, 182, 197.

Magnetic Declination, 135.

Magnetic Quantities, 309.

Main-and-Tail Haulage Arrangement, 311.

Manvers Main Explosion, 128.

Mathematics and Drawing for New Entrants and Colliery Firemen, 218, 230, 244, 255, 266, 279, 291, 306.

Mathematics for New Entrants, 8, 18, 30, 42, 49, 62, 74, 88, 98, 113, 123, 136, 145, 157, 174, 186, 198.

McLuckie Gas Detector, 82.

Measurement of Angles, 279.

Measurement of Length, 218.

Measuring Shaft, 180.

Mechanical Efficiency of Fans, 276.

Methane, Explosive Range of, 286.

Methanorneter, 41.

Methods of Working, 4.

Mine Air, Composition of Sample, 287.

Mine Air, Moisture in, 290.

Mine Air, Physical and Chemical Changes in, 94.

Mine Gases, 232.

Mine Lighting, 220.

Mine Surveyor, Work and Status of, 175.

Mine Temperatures, 241.

Miner's Dial, 34.

Miners' Welfare National Part-time Day Advanced Mining Scholarships, 86, 212.

Miners' Welfare Scholarships and Students' Exhibitions, 52.

Mining Institute of Scotland, 272.

Mining Principles and Practice, 6, 17, 27, 39, 50, 61, 73, 90, 97, 116, 124, 133, 147, 160, 172, 184, 194, 206, 219, 236, 243, 260, 270, 281.

Miss-fired Shots, 190, 270.

Modern Mine Signalling, 101.

Modernisation of Underground Transport, 295, 301.

Motive Column, 287.