UNCLASSIFIED 172-173 174 175 176 177 178 179 180 181 182+183 184 185 186 187-191 192 193=196 197=+198 199 200 201 202 203 204 205-207 208-211 212 213 214 215. 216 217 218-219 220-221 222 223 224 225 226 227-252 Mallinckrodt Chemical Works Massachusetts Institute of Technology (Hardy) Mound Laboratory National Advisory Committee for Aeronautics National Bureau of Standards (Taylor) National Bureau of Standards (Library) _ National Lead Company, Inc,, Winchester National Lead Company of Ohio New Brunswick Laboratory New York Operations Office Nuclear Development Corporation of America ‘Nuclear Metals, Inc. Oak Ridge Institute of Nuclear Studies Oak Ridge National Laboratory Patent Branch, Washington Phillips Petroleum Company Public Health Service, Washington RAND Corporation Sandia Corporation Sylvania Electric Products, Inc. Technical Research Group The Martin Company Union Carbide Nuclear Company (C-31 Plant) Union Carbide Nuclear Company (ORGDP) United Aricraft Corporation U.S. Geological Survey, Denver U.S. Geological Survey, Menlo Park U.S. Geological Survey, Naval Gun Factory U.S.. Geological Survey; Denver U.S. Patent Office UCLA Medical Research Laboratory University of California Radiation Laboratory, Berkeley University of California Radiation Laboratory, Livermore University of Rochester (Technical Report Unit) University of Utah (Stoven) Vitro Engineering Division Weil, Dr. George L. Westinghouse Electric Corporation Technical Information Service, Oak Ridge USNRDL 253-280 USNRDL, Technical Information Division DATE ISSUED: -20- 19 October 1957