. Mining and Scientific Press . eady stated, it would not eliminate theunfit from the profession, although, it might, in some in-stances, give rise to a false sense of security and thusobscure that need. \V. L. ChairmanII. (i. MOULTON .1. A. LewisA. M. Smooi F. P. Sii \ A METHOD has been successfully tried for renderingaluminum and its alloys proof against rust. according to a writer in Industrial Engineering*. An electrolyte ismad( up nt a sulphur compound of molybdenum and zinc employed as the anode, eiinstituting a cell with the alum-inum as cathode. By maintaining the
. Mining and Scientific Press . eady stated, it would not eliminate theunfit from the profession, although, it might, in some in-stances, give rise to a false sense of security and thusobscure that need. \V. L. ChairmanII. (i. MOULTON .1. A. LewisA. M. Smooi F. P. Sii \ A METHOD has been successfully tried for renderingaluminum and its alloys proof against rust. according to a writer in Industrial Engineering*. An electrolyte ismad( up nt a sulphur compound of molybdenum and zinc employed as the anode, eiinstituting a cell with the alum-inum as cathode. By maintaining the cell at a temper-ature of from Hit to (io the aluminum becomes coveredwitli a dark brown coating which proves adhesive and rusl proof against the must stringenl tests. The metaloe bent or rolled cracking the coating, andbaf been immersed by way of test in a salt solution fortwo months without showing a trace of corrosion. September 3, 1921 MINING AND SCIENTIFIC PRESS D I 3 l .- Art • tV /fk u/J ? rVv • ••• -.
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