 |
 |
|
 |
|
 |
59 (LIX) — 1948-1949
Walker-Macard Fan for Valparaiso, 12.
Water Infusion, 123.
Water Supplies, Sources of Colliery, 109, 128.
Water, Influx, Mine Workings, 130.
Water-gauge, 186, 200, 214.
Welding, 116.
Whitmore Overwind and Overspeed Preventer, 155.
Winders, Electric, 143.
Winding Ropes, 60, 82, 108, 178, 275.
Winding, Cycle, 287.
Wire Rope, Strength of, 82.
Contains public sector information licensed under the 
