39 assistan@e. . Many officials of the Atomic Energy Commission, patticularly Dr. Charles L. Dunham, Dr. H.D. Bruner, and many of their staff of the Division of Biology and Medicine, where most helpful in the coordination of arrangements with various governmental agencies. Weare grateful to the officials of the Department of the Interior and particularly to the Honorable D.D. Nucker, High Commissionerof the Trust Territory of the Pacific Islands, and his staff for their support and assistance in Carrying out the surveys. Others of the Trust Territory who were particularly helpful include Mr. Maynard Neas, District Administrator for the Marshall Islands, andhis assistant, Mr. William White, and Mr. R.J. Umhoefer; also Dr. A. Hicking, Dr. John Iaman, and Mrs. Ruth Martin of the Marshall Islands Memorial Hospital. The officers and crew of the Trust Territory ship Rogue were most helpful during the 1960 survey. At the Naval Medical Research Institute we are deeply grateful to Comdr. I.V. King, (MSC) USN, for his splendid assistance as Navyliaison officer and to Capt. O.E. Van der Aue, (MC) USN, Commanding Officer, for his support. Lt. W.E. Lassiter, USN, and his officers and crew of the Duval County (LST 758) wereof great assistance to the team on the 1959 survey. We are also grateful to the Naval Support Activity at Kwajalein for assistance in furnishing necessary airlifts in the Marshall Islands and to Drs. W.W. Fennel and W.S. Shippey of the Texas Transport Company Hosprtal there for their willing assistance. We greatly appreciate the assistance of Mr. Ernest Wynkoop and Mr. Ray Emmens, Offtce of Test Operations, Atomic Energy Commission, Eniwetok, and their staff and of the Holmes and- Narver Construction Co. in handling and storing of equipment. * Weare grateful to Major Kent T. Woodward, (MC) USA,and his colleagues at the Walter Reed Army Institute of Research for advice andassistance in radiochemical analysis of urine samples. At Brookhaven National Laboratory contribu- tions were made by many individuals in many departments including Medical, Instrumentation References and Health Physics, Photography and Graphic Arts, the Shipping section, and others. We are grateful to the following people for their support and advice: Dr. Leland J. Haworth, Director; 1. Cronkite, E.P. et at., The Effects oflonizing Radiation on Human Beings: A Report on the Marshallese and Americans partment, and others in this departmentincluding ston of Radiation Injury in the Human Being, U.S. Government Printing Office, Washington, D.C., 1956. Bonn, V.P., Conarn, R.A., Ropertson, J.S., AND Wenpen, E.A. Jr., Medical Examination ofRongelap People Six Months After Exposure to Fallout, WT-937, Operation Drs. D.D. Van Slyke, E.P. Cronkite, V.P. Bond, J.S. Robertson, R.A. Love, and G.C. Cotzias, and Mr. W.A. Finn, Mr. Clyde Sipe, and Mrs, L.M. Tassinari, Also in the Medical Department we appreciate the assistance of Mr. E.A. Gusmano and Miss R.F. Straub in carrying out measurements and analysis of radionuclides and Mrs. Helen L. Brown for secretarial assistance. In the Instrumentation and Health Physics Department, Dr. J.B.H. Kuper, Chairman, and Drs. R.L. Chase, W. Higinbotham, and R.M. Sugarman gave invaluable assistance in assembling and testing complex electronic equipment. As in the past, the Department of Defense, particularly the Departmentof the Navy, contributed most vitally to the missions. The Chief of Naval Accidentally Exposed to Radiationfrom Fallout and a Discus- nN Dr. Lee E. Farr, Chairman of the Medical De- Castle Addendum Report 4.1A, April 1955. 3. Cronkite, E.P., DunHam, C.L., Grrrrin, D., McPHErson, S.D., anD Woopwarop, K.T., Twelve-Month PostExposure Survey on Marshallese Exposed to Fallout Radiation, BNL 384 (T-71), August 1955. 4. Conarn, R.A., Huceins, C.E., Cannon, B., Lowrey, A., anp RicHaros, J.B., /.A.ACA. 164, 1192-7 (1957). 5. Conarp, R.A., Mever, L.M., Ratt, J.E., Lowrey, A., Bacu, S.A., Cannon, B., Carrer, E., Eicuer, M., anp Hecuter, H., March 1957 Medical Survey ofRongelap and Utirtk People Three Years After Exposure to Radwoactive Fallout, BNL 501 (T-119}, June 1958. 6. Conarp, R.A. et Av., Afedical Survey of Rongelap People, March 1958, Four Years After Exposure to Fatlout, BNL 534 (T-135), May 1959. me individuals, too numerous to name. for valuable Etter, (MIC) USN, acted as Naval liaison officer at Pearl Harbor. ~— The cooperation of many agencies and persons was necessary to carry out these surveys successfullv. The authors are deeply grateful to many Operations furnished an LST, and Capt. HS. sa ogty, Acknowledgments