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40 (XL) — 1929-1930

Wagons, High Capacity, 80, 133.

Walker Fan, 125.

Walker, Jos., Retires, 299.

Walker, Sir H., Honoured, 409.

Wallsend, Coal Loading, 379.

Wallsend, Explosion, 81.

Wankie, Coalfield, 311, 323.

Ward-Leonard, Control, 38.

Water in Ditch, 302.

Water in Mines, 325.

Water in Shaft, 269.

Water Tube Boilers, 320, 398.

Water, Measuring Flow, 160.

Water, Occasional Occurrence, 226.

Water, Rings, 236.

Water-gauge, 141, 238, 414.

Watering, Explosion Precaution, 3.

Wath Main Explosion, 264, 284, 327.

Welfare, Miners, 12, 21, 36, 58, 59, 88, 97, 153, 161, 171, 181, 217, 229, 240, 243, 263, 264, 279, 297, 302, 327, 331, 340, 357, 359, 373, 376.

Wernbwll Disaster, 209.

Whitaker, J. W., Newark, 247.

Whitmore, Apparatus, 143.

Widening Shaft, 383.

Wigan College Studentships, 352.

Winding Arrangements, 158, 238.

Winding Engine Problem, 95.

Winding Plant, 2, 18, 38, 52, 70, 84, 100, 116, 131, 154, 172.

Winding Rope Strains, 222.

Winstanley, Arthur, Degree, 55.

Wire for Winding Ropes, 88.

Withdrawal of Workmen, 76.

Women in Indian Mines, 252.

Working Seams, Order, 29.

Workings, Underground, Support, 50.

Workmen's Compensation, 241.

World, Mineral, Skimming, 249.

World's Coal, 90.

World's Power Analysed, 341.