SAFE HANDLING OF CRYOGENIC LIQUIDS, Compressed Gas Association, Inc., 500 Fifth Ave., N.Y., N.Y. 10110, 23 pages, $6.50. The handling and use of cryogenic liquids safely are detailed in this pamphlet. It emphasizes the properties of commonly used cryogenic liquids, which include oxygen, nitrogen, argon, hydrogen, helium, neon, krypton, xenon, methane, carbon monoxide and liquefied gas.