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Manufacturer, Paul E. Johnson Manufacturers, Inc., 2508 South Parkway, Chicago 16.
The description of these lamps in The Journal Nov. 25, 1950, page 1093, with respect to the source of radiation for all lamps, should have read: "The source of radiation for all lamps is a rod, made of nonmetals, like carbon and silicon, heated by the passage of the current."
Glolite Luminous Infrared Ray Lamps, Models 439, 751, 1151 and 1451, Accepted. JAMA. 1951;145(7):487. doi:10.1001/jama.1951.02920250039011