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Absorption. Monochrome-TV ultravioletvisible microscope and absorption analyzer, 360(C) Abstracting. "Auto-Abstract," 522(C) Additives. Thermal antioxidants for polyethylene, 357 (C) Aerodynamics. "Hotshot" tunnel for reentry problems, 82(C) Air conditioning. Novel method of manufacturing high pressure air ducts, 77 (C) Aircraft. Emergency rescue container, 472(C) Ground tests of Piasecki 59K VTOL, 434(C) Liquid brake system for aircraft, 435(C) Ramjet supersonic "flight tests," 164(C) Alloys. New high temperature alloy, 523(C) Amplifiers. Range of radio telescopes extended by new amplifier, 83(C) Analysis. Elastic-plastic analysis of scabbing in materials (t(umar and Davids), 371 Functional characteristics of a node determinant (Bonnet, Kosowsky and Ordung), 395 Some aspects of the network analysis of sequence transducers (Simon), 439 Anesthetics. Non-depressant anesthetic, 492(C) Anisotropic materials. Modified Tresca's yield condition and associated flow rules for anisotropic materials and applications (Hu), 187 Annual Report of the Board of Managers for the year 1957, 227 Antioxidants. Thermal antioxidants for polyethylene, 357(C) 528 Applied mechanics. Normal perforation of a thin plate by truncated projectiles (Paul and Zaid), 317 Astronautics. Gravitational torque on a satellite vehicle (Roberson), 13 Satellites followed with transparent earthsky globe, 82 (C) Astronomy. Giant radio telescope, 302 (C) Range of radio telescopes extended by new amplifier, 83 (C) Atomic energy. Safe atoms (McCullough), 281 Automation. Automatic post office, 482(C) Electronics to start revolution in office, 437 (C) Novel method of manufacturing high pressure air ducts, 77 (C) Axial loading. Elastic materials under axial loading (Procter), 125 B Bailey, James. Longstreth Medal, 52 Ballantine Medal. Harald Trip Friis, 494 Ballistics. Normal perforation of a thin plate by truncated projectiles (Paul and Zaid), 317 Bartol Research Foundation Direct observation of periodic variation of primary cosmic-ray intensity (Pomerantz, Agarwal a~d Potnis), 67 Beams. Behavior of the node of an elastic beam during stationary vibration (Higuchi and Iinuma), 309 Bending. Bending and vibration of elastically restrained circular plates (Kantham), 483 June, I958.] SUBJECT INDEX 529 Biochemical Research Foundation The anti-tumor activities in vitro of 5-imino-1,2,4-dithiazolidin-3-thione and bis(diethylthiocarbamoyl)disulfide toward the Krebs-2 ascites carcinoma (Reinhart, de Courcy and Batt), 58 Charge and specific ion effects on sedimentation in the ultracentrifuge (seminar) (Pedersen), .503 Colorimetric estimation of D-glucose and 2-deoxy-D-glucose with glucose oxidase (McComb and Yushok), 417 Blood pressure. Electronics probes human heart, 492 (C) Book reviews Adkins, Bernard: The general theory of electrical machines, 35.5