W.A. powder, 182.
Waltham Abbey, manufacture of gun-cotton at, 71. manufacture of cordite at, 169.
Walke's pressure gauge results, 289.
War Office experiments with cordite, 173.
Washing gun-cotton, 63. nitro-glycerine, 37.
Waste acids from nitro-glycerine, 41, 226.
Weltern powder, 191.
Werner & Pfleiderer's mixing machine, 124.
Whirling out the acids from gun-cotton, 62.
Will's test for nitre-cellulose, 261.