ted with a' concentrated In shops where brass is worked up in connection Mechanics' Magazine, of London, where it is claimed with other metals, the chips frequently get mixed with to be a recent foreign discovery, describes identi- solution of soda and potash, in the proportion of two iron or… … rious kinds of sawdust used stance. The apron moves on are reduced to fine powder, JONSON'S MACHINE FOR CLEANING BRASS TURNINGS and discharges the clean and mixed with blood into brass into a basket or box beneath the opening him in 1860. Mr. Wood sends us an article, accom- paste; other materials…
