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51 (LI) — 1940-1941

Safety Instruction, 25, 65, 235, 407.

Safety Organisation, 33, 49, 91, 116, 204, 333.

Safety-lamps, 349, 380, 381.

Salt and Coal Dust, 263.

Salvage in Coal Industry, 229.

Samson Coal-cutter, 83, 341.

Scholarships, 53, 149, 199.

Scotland, Accidents in, 322.

Scottish Coals, Uses, 122.

Seams, Formation of, 95.

Seaton Delaval Shot-firing Test, 264.

Shaft Accidents, 192.

Shaft Bottom, Opening Out, 159, 175.

Shaft Cables, 351.

Shaft Pillar, 128.

Shaft Sinking, 143.

Shafts and Belts, 278.

Shafts, Fireproofing, 101.

Sheathed Explosives, Belgium, 209.

Sheaves and Drums, 75.

Shot-firing Details, 318.

Silicosis, 82.

Simultaneous Shot-firing, 307, 345, 375.

Siphon, 168.

Slurry Problems, 70.

Smoking Dangers in Mines, 387.

Solid Stowing Advantages, 315.

South African Coal Mining, 188.

South African Coal Problems, 401.

South African Coal Tests, 244.

Specifications, B.S., 9, 101, 169, 250, 276, 325.

Splint Coal, 404.

Splitting Air-currents, 98, 364.

Spontaneous Combustion, 48, 144, 160, 364.

Spores in Coal, 215.

Spray and Mist Tests, 113.

Steam Calculations, 198.

Steam Flow through Pipes, 181.

Steam Pipes, 233.

Steam-raising Plant, 414.

Steep Seams, Cutting, 196.

Stemming, Sand and Clay, 164.

Stone Duste, 111.

Stoping, Longwall System, 244.

Stopping, Preparatory, 253.

Storage, Coal, 193.

Subsidence, 191.

Successful Competitor, 36.

Sulphur in Coal, 162.

Superheated Steam, 105.

Support, Roof, 138.

Surface Plant, 383.

Surveying, 6, 22, 40, 56, 72, 84, 89, 103, 119, 134, 150, 166, 180, 200, 214, 225, 237, 242, 262, 274, 291, 312, 328, 360, 374, 390.

Surveyors' Examination Notes, 145.

Surveys, Ventilation, 132.

Swansea Division Accidents, 368.