The Atlas Powder Co. in America manufacture a series of coal-mine explosives under this name. They are nitroglycerine explosives.

VIKING POWDER is a coal-mine explosive made by Nobel’s Explosives Co. There are two varieties on the Permitted List—

No. 1. No. 2.
 Date of Permit15-1-15  15-1-15
Ammonium nitrate59  67 
Nitroglycerine10  8·5
Wood meal10  8·5
Sodium chloride20  15 
Magnesium carbonate1  1 

Limit charge
26 
18 oz.
Power (swing of ballistic pendulum) 2·44”2·59”

This explosive is used extensively.

VIRITE.—A coal-mine explosive made by the Nitrate Explosives Co. which was on the old Permitted List—

Ammonium nitrate38 
Potassium nitrate35·5
Sulphur4·5
Charcoal11·5
Ammonium oxalate  10·5

There have been other explosives of the same name.

VULCAN POWDER is a brand of American dynamite.

W.A. See [Lafflin and Rand].

WALLONITE.—A Belgian blasting and coal-mine explosive—