The SciencesNewspaper Files Kept Photographically, Liuseed Oil for Dirty Hands and moreBy F. D. McHugh on January 1, 1934AdvertisementABOUT 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