Illumination and Nystagmus, 117.
Illumination, Mine, 42, 183, 234.
Incline, Self-acting, 126.
India, Coal Mining, 147.
Induction Regulator, 70.
Industrial Relations, Future, 208.
Industry and Employment, 58.
Industry in 1932, Coal, 257.
Industry, Coal, Survey, 195.
Industry, House Reviews, 410.
Inquest After 24 Years, 320.
Inrushes of Water, 284.
Inspectors' Reports, 49, 68, 84, 100, 114, 116, 128, 154, 170, 177.
Insulation Resistance, 134.
Investigation of Coal Seams, 308.
Investigation, Committees of, 217.
Iron Ore, 123, 235, 353.