N em lhlucntlOtls. Scientific '2\merhan. which rests on the side of the touch hOle,_. , These ingredients are m ixed tog�ther in the The lock is a simple lever, which is brought proportions specified by the patent; and to down with force upon the shoult!er of the every charge of ore in the blast furnace like· primer, by means of a small rope attached, II' to produce 480 Ibs. weight of metal, he and the primer is ignited and the gun dis· uses 66 Ibs. of this mixture. In the puddllllg charged.

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... s will do away with the malch fmoare he applies it to the metal in a fused and the government will probably secure it.state, by throwing upon the surface two or The expense of the lock and primer is but three pounds at a time, and gradually incor trifling. The latter can be furnished for!$3 porating the reqtllsite quantity. His patent