The SciencesColoring Non-Ferrous Metals and AlloysCleaning Work; Receipts for Producing Different Colors Oxidizing; MottlingBy E. F. Lake on October 25, 1913AdvertisementABOUT THE AUTHOR(S)Recent Articles by E. F. LakeOxhydric Process of Cutting Metals—IIIOxhydric Process of Cutting Metals.—IIOxhydric Process of Cutting Metals.—I