Blasting gelatine, 119.

Blasting charge, preparation of, 166.

B.N. powder, 190.

Boiling-point of N.G., 19.

Boutnny's nitro-glycerine process, 15.

Brown on wet gun-cotton, 56.

Brugère's powder, 195.

Bucknill's resistance coil, 13.

Calculation of volume of gas evolved in an explosive reaction, 276.

Cannonite, 189.