UNCLASSIFIED ADMINISTRATIVE INFORMATION This work was done as a part of Bureau of Medicine and Surgery Project Number NM 006-015.04, Phase 1, Technical Objective AW-6, as described in the U.S. Naval Radiological Defense Laboratory Research Progress Report to the Bureau of Medicine and Surgery, NAVMED 1343, of 31 December 1956, This study was also a Federal Civil Defense Administration project, described in part A of this laboratory's "Progress Report to Federal Civil Defense Administration — Biomedical Research" for the period 1 January to 30 June 1957, USNRDL-P-3, dated August 1957. iv EF kL ae 6B > F&F rs & k £€ hi & ro E&E rm a Fa UNCLASSIFIED