Tacheometric Calculations, 370, 386.
Telephones in Mines, 260.
Temperatures, Acclimatisation, 113.
Testing Breathing Apparatus, 166.
Thermometers, General Purpose, 325.
Three-phase Alternator, 415.
Three-phase Motors, 384.
Timber Preservation, 357.
Timber, Home Grown, 215, 327.
Timbering, 77, 125.
Time Factor in Pillar Extraction, 103.
Time Test, Shot-firers', 107.
Tin Mine, Ancient, 121.
Trailing Cable Accidents, 132.
Training Mining Engineers, 245.
Training, Co-operation Advantages, 209.
Training, Rescue, 99.
Trapezoid, etc., Area, 84.
Treatment of Steel, 414.
Treatment, Carbon Dioxide-Oxygen, 279.
Tredegar Institute, 275.
Treforest Inquiry, 185.
Triangles, 2.
Trigonometrical Ratios, etc., 18.
Tub, Colliery, 303.
Tunnel Calculations, 210.
Tunnels Through Faults, 230, 249.
Turbines, 159.
Turbo Pumps, 256.