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47 (XLVII) — 1936-1937

Dams, Concrete, 350.

Davies, Brindley, Sketch, 87.

Davies, T. G., Commission Evidence, 62.

Davies, W. B., Chairman Welsh Owners, 299.

Day's Work Reviewed, 378.

Deaths, Sudden, in Pit, 73.

Deep Mine Conditions, 242, 253.

Deep Mine Ventilation, 51.

Degree Students, 41.

Density and S.G., 246.

Depth and Temperature, 243.

Deputies' Mutual Aid, 103, 355.

Deputies, Status, etc., 10, 26, 34, 52, 60, 120, 186.

Derailments in Horse Haulage, 119.

Derelict Pits, Why?, 73.

Detector, Methane, 118, 197, 215, 244.

Detonators, 397, 402.

Dewatering Problems, 177.

Diagrams, Spore, 118.

Diffusion, 306.

Dip, Working Seams to, 210.

Direct Current Power, 393.

Direct Haulage, 207.

Disability Period of Accidents, 332.

Disasters Analysed, 340.

Doors and Sheets, 266.

Double-acting Ram Pumps, 126.

Drainage, Coal, 208.

Drills, 111, 114.

Dust Analysis, 175, 262.

Dust Effects on Lighting, 341.

Dust, Dealing with, 242.

Dust, Silica, 211.

Dusting, Report on, 416.

Dusty Point of Coal, 201.