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56 (LVI) — 1945-1946

C.H.4 in Return Airway, Average Percentage, 82.

C.M.A. re Tubs, Signalling and Refuge Holes, 213.

Cables and C.A. Pipes Underground, Safeguarding, 94.

Cables, Sections of, 107, 191.

Calcareous Rocks, 235.

Calorific Value of Coal Sample, 130.

Cambered Girders, Erection of, 227.

Carboniferous Rocks, 235.

Cardox Blasting Devices, 272.

Changing Rope on Direct Haulage, 22.

Charging Shot-hole, 260.

Chimney, Height of, 129.

Chocks, 76.

Circle, Area of, 157, 174.

Circuit, Shot-firing, 243.

Circuit-breaker, Features of, 75.

Classification of Rocks, 208, 223.

Clearing Gas from Tunnel, 21.

Coal Conveying, 73, 90.

Coal Dust, 65, 213.

Coal Dust Explosions, Causes and Prevention, 56.

Coal Industry, Future Structure, 28.

Coal Mines (Training) General Regulations, 98.

Coal Mining (Training and Medical Examination) Order, 24.

Coal Shot, How to Fire, 105.

Coal, Percentage Composition of, 93.

Compasses, Use of, 266.

Compensation for Reservation, 134.

Competition, Prize, 9, 21, 33, 47, 69, 81, 93, 105, 117, 128, 142, 153, 164, 178, 190, 201, 213, 225, 238, 249, 261, 274, 286, 298.

Competition, Prize, Awards, 305.

Competitor, Successful, 36.

Composition of Ordinary Air, 207.

Conductors in Winding Shafts, 131.

Contour Map, 294.

Conveyor, Chain, 58.

Conveyors, Belt, 116.

Conveyors, Chain and Drag-line, 147.

Conveyors, Loading End, 312.

Conveyors, Shaking or Jigging, 97.

Conveyors, Top-belt, 124.

Conveyors, Trunk, 133.

Copper Conductor, Resistance of, 228.

Core Method of Boring, 83.

Cross-measure Drift, 114.

Cross-sectional Area and Perimeter of Road, 226.

Curved Line, Measurement of, 306.