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Cordite, of which we now hear so much, is made of nitro-glycerine, gun-cotton, and mineral jelly in the proportion of fifty-seven, thirty-eight, and five parts.

There is often also a little vapour from the substances, such as oils, mineral jelly, vaseline or other hydrocarbon added for lubrication or to render the finished material pliable, &c.

Ballistite: equal parts of nitroglycerine and soluble nitrocotton with some mineral jelly.

Cordite is fifty-eight parts nitroglycerin, thirty-seven parts guncotton, five parts mineral jelly, and, of course, acetone is used as solvent.

Nobel's invention, "cordite," is composed of nitroglycerin and nitrocellulose with a little mineral jelly or vaseline.