Machine Mining, 67, 84, 97, 234, 245, 248, 255, 262, 276, 280, 308, 357.
Machine-cut Faces, 21.
Magneto Exploder, 301.
Magneto Telephones, 69.
Mains Lighting, 202, 213.
Maintenance, Reviving Apparatus, 52.
Maltman, James, 86.
Manager's Duties, etc., 362, 378.
Mantrips, Safeguarding, 188.
Materials, 62, 79, 141.
Mathematics, Practical, 68, 81, 106, 118, 130, 151, 161, 177, 194, 211, 226, 242, 263, 273, 289, 305, 321, 337, 354, 370, 390.
McMillan, Professor, Presentation, 358.
Mechanical Stokers, 251.
Metal Mines, Abandoned, 53.
Metalliferous Mining Notes, 268.
Metals, Place in Industry, 384.
Metals, When Exhausted, 183.
Mine Timbers, 189.
Mine Working, 17.
Minerals, Search for, 245.
Miner's Dial, 46.
Miner's Energy Output, 96.
Miners' Scholarships, 7.
Miners' Welfare Report, 402.
Mines and Quarries Reports, 76.
Mining Examinations, Board's Survey, 376.
Mining Explosives, 290, 306.
Miss-fire Remedies, 313.
Modern Headgear, 31.
Moments and Levers, 321.
Money in Mines, 101.
Motor and Conductors, 334.
Mueseler Lamp, Principle, 365.