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57 (LVII) — 1946-1947
Valuation Board, 266.
Ventilating Conveyor Faces, 38.
Ventilating Machines, Persons in Charge, 201.
Ventilation Appliances, 186, 198.
Ventilation Calculations, 236, 238, 272.
Ventilation of Headings and Drifts, 119, 222, 260.
Ventilation of Sinking Shaft, 25.
Ventilation Terms, 143.
Ventilation, How Heat from Strata Assists, 22.
Ventilation, Natural, 113, 131, 134.
Ventilation, Reversing, 119.
Vernier, 176.
Vertical Shafts or Inclined Drifts, Merits of, 285.
Viameter, 79.
Volume, 26, 43.
Volume of Air, 190, 286.
Volume of Debris Heap, 17.
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