Abel's heat test, 249.

Acid mixture for nitrating nitro-glycerine, 23.

Air pressure in nitrator, 28.

Alkalinity in nitro-cellulose, 217.

Amberite, 189.

Ammonite, 149.

Analyses of collodion-cotton, 81. gelatine dynamites, 123.

Analysis of explosives, 197. acetone, 209. blasting gelatine, 199. cap composition, 241. cordite, 206. celluloid, 230. dynamite, 197. forcite, 202. fulminate, 240. glycerine, 233. gun-cotton, 212. nitric acid, 24. picric acid, 230. tonite, 205. waste acids, 239.

Armstrong on the constitution of the fulminates, 159.

Atlas powder, 119.