18. Radiological Health Data, Vol. IV, No. 10, October 1963. Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 19. Report of the United Nations Scientific Committee on Effects of Atomic Radiation. United Nations Supplement No. 16 (A/5216). 1962. 20. Evaluation of the Underground Water Contamination Hazard From Underground Nuclear Explosions. University of California Ernest 0. Lawrence Radiation Laboratory. UCRL 5538, 1959. 21. Stead, F. W.: Tritium Distribution in Ground Water Around Large Underground Fusion Explosions. Science, Vol. 142, No. 3596, pp. 1163-11635. November 1963. 22. Michelson, Irving: Monitoring Fallout From Nuclear Weapons Tests. Hearings on Radiation Standards, Including Fallout. Joint Committee on Atomic Energy, Congress of the United States, June 1962. 23. Atomic Energy Commission’s Eighteenth Semi-Annual Report to Congress. Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 1955. 24. Atomic Energy Commission’s Fourteenth Semi-Annual Report to Congress. Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 1953. 25. Dunning, G. M.: Radiation Exposures From Nuclear Tests at the Nevada Test Site. Health Physics, Vol. 1, pp. 255-267, 1958. . The Effects of Nuclear Weapons. Glasstone, S. (editor). Superintendent of Documents, U.S. Government Printing Office, Washington. D.C., April 1962. 27. Statement by Dr. Herman Hoerlin at Congressional Hearings. Developments in Technical Capabilities for Detecting and Identifying Nuclear Weapons Tests. March 5-12, 1968. 28, Rose, H. W., Brown, D. V. L., Byrnes, V. A. and Cibis, P. A.:| Human Chori- oretinal Burns from Atomic Fireballs. Archives of Ophthalmology, Vol. 55, No. 2, pp. 205-210, February 1956. 29. Landesberg, J.: Chorioretinitis Produced by Atomic Bomb Explosion. Archives of Ophthalmology, Vol. 54, pp. 589-540, October 1955. 30. Human Chorioretinal Burns Following High Altitude Nuclear Detonation. Culver, J. F., Lt. Col., MC, USAF. 35th Annual Scientific Meeting of the Aerospace Medical Association, Bell Harbor, Florida, May 11, 1964. . The Biological Effects of Atomic Radiation. National Academy of SciencesNational Research Council, 1956. Spread of the Krakatoa Voleanic Dust Cloud as Related to the High-Level Circulation. Bulletin American Meteorological Society, Vol. 32, Wexler, H. 32, No. 2, pp. 48-51, February 1951. 33. Wexler, H. On the Effects of Volcanic Dust on Insolation and Weather. Bulletin American Meteorological Society, Vol. 32, No. 1, pp. 10-15, January 1951. 34, Press Release by U.S. Atomic Energy Commission January 23, 1964. Nu- clear Detonation Cannot Cause Natural Earthquake, Four Experts Agree. 35, Background Material for the Development of Radiation Protection Standards. Federai Radiation Council Report No. 1, May 138, 1960. US GOVERNMENT PRINTING OFFICE . 1964 OL— 745-413 For sale by the Superintendent of Documents, U.S. Government Printing Ottice Washington, D.C., 20402 - Price 24 cents. 06