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39 (XXXIX) — 1928-1929

Safety Detaching Hooks, 345.

Safety in Mines Research, 106.

Safety Suggestions, 121.

Safety-lamps, 32, 43, 65, 107, 151, 349.

Sai d, Heating, for Stoppings, 401.

Sampling Mine Air, 167.

Sampling, Coal, 82, 152.

Scholarships, Welfare, 1, 85, 369, 391.

Science and Coal, 32.

Scotland Report, 130, 148, 170.

Scotland, Coalfields in, 23, 38.

Screening, Coal, 376.

Searching Underground Workers, 29, 211.

Self-rescuers, Miners', 75.

Shaft Bottom, Enlarging, 221.

Shaft Sinking, 190, 350.

Shield, Miners' Safety, 347.

Shilbottle, C.W.S. Acquires, 179.

Shildon Developments, 133.

Short Circuit, 339.

Shot-firing, 60, 67.

Sinking, Freezing Process, 7.

Siphon, Principles, 86.

Sizing, Coal, for Briquettes, 117.

Slacking of Coal, 42.

Smoke Abatement, 48, 249.

Sound, Elementary Notions of, 390.

Sound, Transmission, 402.

South Pole, 370.

Sparks and Ignition of firedamp, 155.

Specific Gravity, 22, 34, 173, 187.

Speed Monkey, 202.

Spontaneous Combustion, 92, 101, 106, 226, 242, 280, 401.

Staffs, Mining Instruction in, 65.

Staffs., North, Coalfields, 289.

Statistical Record, 130, 160.

Steam Raising, 147.

Steel Supports, 19, 56, 74, 248, 262, 309.

Stone-dusting, 235.

Stop Block, Automatic, 217.

Stoppings, 13.

Storage Battery Locos., 42.

Students, Successful, 38, 48, 171, 229, 233, 263, 369, 384.

Subsidence, 383.

Support, Underground Wprkings, 156.

Supports, Mines Act, 125.

Surveying, 35, 35, 51, 67, 99, 135, 174, 213, 238, 240, 298, 302, 332, 366, 381, 412.

Surveying Instruments, 381.

Surveyors' Examination Notes, 40, 243.

Swansea Report, 131, 149, 179.

Swelling, Coal, During Coking, 117.

Switchboard Apparatus, 207.

Switchgear, Distribution, 390.