Teachers' Conference, Mining, 73.
Temperature, Air, in Mines, 1.
Testing Insulation Resistance, 134.
Tests, Canadian L.T.C., 43.
Thick Seams, Working, 328, 342.
Third Shaft, Providing, 287.
Three-phase Transformers, 26.
Timber, Classes of, 287.
Timbering Rules, Colliery, 114, 326.
Toll of Mines, 251.
Trackless Mining, 264.
Trade Cycle, 241.
Trailing Cables, 39.
Training Pit Boys, 81, 171, 179, 293, 353.
Transformer Efficiencies, 8.
Transmission Problems, 119.
Transport in S.A., 391.
Transport of Steel Arches, 183.
Transvaal Coal, Investigation, 88.
Travelling Studentship, 144.
Trevithick Centenary, 321, 337.
Trucks, Old, 344.
True Meridian, Direction, 14.
Tub Arrester, 177.
Tubbing, Cast-iron, 381.
Tuberculosis, Miners and, 273.
Tunnel Driving, 271.
Tunnel, Concreting Haulage, 212.
Turner Retort Tests, 163.