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57 (LVII) — 1946-1947

S.M.R.B. 24th Annual Report, 224, 234.

Safety Badges, Presentation, 163.

Scale of Plan, 28.

Sectional Levelling, 283.

Secular Variation, Effect of, 218.

Sedimentary Rocks, 38.

Self-acting Haulage, 169, 188.

Self-setting Axle Stop, 99.

Semicircle, 46.

Separation Door, 139, 198.

Shackle, Quick Release, 205.

Shaft Bricking Scaffold, 240.

Shaft Guides, 107.

Shaker Conveyor, 287.

Sheffield University Mining Society, 98, 110.

Shot-firing, 173, 191, 264.

Signalling in Shafts, 107, 231.

Silurian Rocks, 128.

Single Unit Face, 124, 139.

Sinking Shafts, 25, 264.

Siphon and Reciprocating Pump, 96, 290.

Sirocco Fan, 150.

Skip Winding, 204.

Slides and Glides, 41.

Slurry Tank, Capacity of, 16.

Smoke Helmet, 85.

Smoke Test, 211.

Split Seams : Probable Causes, 62.

Splitting Air-current, 77, 144, 242.

Spontaneous Combustion, 73, 131, 139.

Squirrel-cage Motor, 153.

Steam-raising Plant, 86.

Stone Hammers, 133.

Stone Pebbles and Boulders, 229.

Stress and Strain, 190.

Successful Competitor, 29.

Sulphuretted Hydrogen, 15.

Supporting Roof at Roadhead, 296.

Supports in Sinking Shaft, 107.

Surface Indication of Folds, 18.

Survey of Coal Reserves and Production in G.B., 39.

Survey Stations, Distance Between, 189.

Surveying and Levelling, 79, 90, 104, 109, 121, 136, 148, 159, 182, 194, 208, 218, 230, 241, 256, 265, 283.

Surveying Problems, 6, 16, 27, 37, 52, 65, 105.