\ FWC-M-137 (Report SECR::' INFIDENTIAL RD On Le ree N7 Los Alamas Scientific Lab., GMX-4 HARDTACK TSETSE. Carl Holtom and James J. Billings. Oct. 1958, 143p, Ll 2 I. Il. Hardtack Tsetse Authors (2) Corp. Author ; ty (Report: SECRET) Card: UNCLASSIFIED id GMX-4-464 N6é HARDTACK-1 (Report: SECRET) Dept. of Defense, Wash., D.C. OPERATION HARDTACK, WEAPONS EFFECTS PROGRAM, ENIWETOK PROVING GROUND, SPRING, 1958. September, 1957. 1107p. 1. 2. I. II. Hardtack Eniwetok Proving Ground Corp. Author SWPWT/976 N5 94