The SciencesFlame Softening of Flame-Cut Steel, Lamps, and moreBy F. D. McHugh on June 1, 1938AdvertisementABOUT THE AUTHOR(S)Recent Articles by F. D. McHughCoal and Kilowatts, Carboloy Extrusion Process, and moreIndian Arrow Poison for Arthritis, Mental Disease, Enamels for Plastics, and moreGlycerine from Petroleum, Electrostatic Iron Ore Separator, and more