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57 (LVII) — 1946-1947
Dealing with Firedamp in Sinking, 295.
Debris Heap, Area of, 149.
Depth of Shaft, Finding, 7.
Deputy or Fireman, Qualifications, 84.
Detaching Hooks, 107.
Detectors, Firedamp, 92.
Devonian and Old Red Sandstone, 128.
De-watering Dip Workings, 246.
Diagonal Roadway Through Pillar, Driving, 16.
Diagonal Scale, 83.
Dial Surveys, Underground, 208.
Diffusion of Gases, 92.
Direct Current, Motor and 3-phase Induction Rotor, 46.
Direct Rope Haulage, 189, 203.
Discussion Groups for Young Mine Workers, 117.
Diurnal Variation, 160.
Double Packing, 234.
Double Unit Face, 118, 124.
Double-acting Piston Pump, 154.
Drafts of Section 68, Gen. Regs., 257.
Drift Theory, 86.
Drilling in Coal, 263.
Driving a Scouring, 61.
Drop Warwick, 179.
Dumpy Level, Adjustments of, 292.
Dust Consolidation on Roadways, 140.
Dust Suppression from Pneumatic Picks, 245.
Dust Suppression on Machine-cut Faces, 120, 233.
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