Ailinginae Atolls - Radiation Readingson the Islands of Rongelap and A summaryof the radiation readings obtained on the five study-collecting trips in which the Applied Fisheries Laboratory participated from March 26, 1954 to November 7, 1955 ig given in Table l. On the October 21-23 survey, Mr. Robert Taft, Radiological Safety Offi- cer of the AEC Resident Engineer's staff, accompaniedthe field party and made the survey readings with a Beckman MX-5 meter. All readings were obtained one inch above ground and were recorded in millireps per hour. The highest readings were again obtained on the more northern islands of Kabelle and Labaredj where maximum readings were 4 mrep/hr with ‘the shield closed and 14 mrep/hr with the shield open. Readings at Ronge- lap Island and Enibuk Island (Ailinginae Atoll) were much lower than the northern islands, in some cases approaching the background range of the “inatrument (0.03 mrep/hr). The individual readings for the October 21-23, 1955 visit, with the loca- tions and terrain conditions, are recorded in Appendix A. ee It was learned after the survey group of October 1955 had returned to the Eniwetok Marine Biological Laboratory that the Division of Biology and “Medicine was in need of a complete survey of the islands with readings at the three-foot level in addition to those previously taken at the one-inch level, On November 7, 1955, Seymour and Held were flown to Rongelap UNIVER CITY UN, oy