The SciencesPlanetarium Staff, Photo-Cell Output and moreBy F. D. McHugh, Alexander Klemin, A. E. Buchanan Jr. on December 1, 1935AdvertisementABOUT 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 moreRecent Articles by Alexander KleminInstrumentation, Measurement, and ControlMust Flying be a "Racket"?Ideas in the AirRecent Articles by A. E. Buchanan Jr.Bug Eat Bug, Wire Mileage and moreWater Weight, Fingerprints Raised from Cloth and moreU. S. Excels in Wasting Soils, Reflection in Boulder Dam Lake and more