Beckman, E. L., Protection During Immersion in Cold Water, AD601044, March 1964, Naval Medical Research Inst., Bethesda, Md. Tauber, J. F. and Rawlins, J. S., Thermal Requirements for the Mark II Diving System, AD694013, 1964, Naval Medical Research Inst., Bethesda, Md. Beckman, E. L., Protective Suits for Underwater Swimmers, Rep. 8, 1967, Naval Medical Research Inst., Bethesda, Md. Bowen, H. M. and Pepler, R. D., Studies of the Performance Capabilities of Divers: The of Cold, SSD 67-399, March 1967, Dunlap and Associates, Darien, Conn. McQueen, J. D., Effects of Cold on the Nervous System, The Physiology of Induced Hypothermia, edited by R. D. Dripps, NAS-NRC Publ. 451,1956, NASA. Martorano, J. J., of Dress Suits in Maintaining Body in Cold Water, AD-265907, Oct. 1961, U.S. Naval Medical Field Research Lab., Camp Lejeune, N.C. Stolwijk, J. A. J. and Hardy, J. D., Temperature Regulation in Man—a Theoretical Study, Pfluger Archiu. Ges. Physiologic, Vol. 291, Pt. 2, 1966, pp. 129-162. Stolwijk, J. A. J. and Cunningham, D. J., Expansion of a Mathematical Model of Thermoregulation to Include High Metabolic Rates, NASA CR-092443, 1968, John B. Pierce Foundation, New Haven, Conn. Stolwijk, J. A. J., Expansion of a Mathematical Model of Thermoregulation to Include High Metabolic Rates, NASA CR102191,1969, John B. Pierce Foundation, New Haven, Conn. Stolwijk, J. A. J., A Mathematical Model of Physiological Regulation in Man, NAS-9-9531, 1970, John B. Pierce Foundation, New Haven, Conn. Craig, A. B., Jr. and Dvorak, M., Regulation During Water Immersion, Journal of Applied Physiology, Vol. 21, Pt. 5,1966, pp. 1577-1585. Reeves, E., Stephens, M. P., and Beckman, E. L., An Evaluation of the Foamed Neoprene Diver's Wet Suit as a Survival Garment for Helicopter Aircrews, Research Rept. 7, Project MF-011.99-1001,1963, Naval Medical Research Institute. Barsell, A. W., Montgomery, L. D., and Arnold, J. E., Behavior of SNAP Reactor Fuel Elements During Atmospheric Reentry, Atomics International, Div. of Rockwell International, NAA-SR-11502, 1966. Sherwood, T. K. and Reed, C. E., Applied Mathematics in Chemical Engineering, McGraw-Hill, New York, 1939.