34 grateful to the following people for their support and advice: Dr. Leland J. Haworth, Director; At Majuro we are most grateful to Mr. Maynard Neas, the District Administrator, Dr. A. partment, and others in this department including Martin, Administrator of the Marshall Islands Memorial Hospital, and their staff who were of Dr. Lee E. Farr, Chairman of the Medical De- Drs. D.D. Van Sivke, E.P. Cronkite, V.P. Bond, Hicking, District Health Officer, Mrs. Ruth G.W. Stoneman. great assistance in supporting the operation. We also wish to express our appreciation to John Iaman and Trigar Ishoda, practitioners, and Nelson, technician, for their assistance in carrying out the examinations, and to manyof the Rongelap people for their help during the examinations. Wewish also to express our appreciation to the Honorable D.H. Nucker, High Commissionerof the Trust Territory of the Pacific Islands, and Dr. Asin the past, the Department of Defense, particularly the Department of the Navy, contributed their support. and L.K. Dahl; Dr. J.B.H. Kuper, Chairman of the Instrumentation and Health Physics Department, andothers in this departmentincluding Dr. R.L. Chase, Dr. W. Higinbotham, Dr. R.M. Sugarman, Mr.F.C. Merritt, Mr. L. Suydam,and Mr. J.A. Hallock. We also wish to express our appreciation to Dr. R.E. Segel, Mr. J.S. Medd, Mr. R. Lehn, Mr. Norman Eckman, and Mr. H.E. Macdonald, Director of Public Health, for most vitally to the mission. The Chief of Naval Operations and Commander-in-Chief of the Pacific Fleet furnished an LST, and Capt. HLS. References arrange clearance and transportation. We are deeply grateful to Comdr. I.V. King, (MSC) USN, of the Naval Medical Research Institute for his splendid assistance as Navyliaison officer, and to Capt. O.E. Van der Aue, (MC) USN, CommandingOfficerofthat Institute, Capt. J-H. McQuilkin, USN, Commanding Officer, and Capt. A.R. Behnke, (MC) USN, Medical Director of the U.S. Naval Radiological Defense Labo- ratory, for their enthusiastic support. We wish to thank Lt. Comdr. J.N. Casseday, USN, Commanding Officer of the LST Plumas County, and his officers and menfor their great assistance and cordiality in transporting, housing, and berthing the team at Rongelap. Lt. S.H. Moore, (MC) USN,wasof great assistance in helping with blood examinations. At the Naval Air Station, Kwajalein, Capt. F.N. Daly, USN, Commanding Officer, — Etter, (MC) USN, and othersoftheir staff helped . Cronkite, E.P. et ar., The Effects of lonizing Radiation on Human Beings: A Report on the Marshallese and Americans Accidentally Exposed to Radiationfrom Fallout and a Discusston of Radiation Injury in the Human Being, U.S. Govern- mentPrinting Office, Washington, D.C., 1956. 2. Bonn, V.P., Conarp, R.A., Ropertson, J.S.. anp Wepen, E.A. Jr., Medical Examination of Rongelap People Stix Months After Exposure to Fallout, WT-937, Operation Castle Addendum Report 4.1A, April 1955. 3. Cronkite, E.P., Dunnam, C.L., Grirrin. D.,. McPHERson, S.D., AND Woopwarp, K.T., Twelve-Month Post- Exposure Survey on Marshallese Exposed to Fallout Radiation, BNL 384 (T-71), August 1955. 4. Conarp, R.A., Hucertns, C.E., Cannon, B., Lowrey. A., AND RicHArDs, J.B., Medical surveyof Marshallese two years after exposureto fallout radiation, /.-A.VL4. 164, 1192-7 (1957). 5. Conarp, R.A., Meyer, L.M., Ratt, J.E., Lowrey, A., Bacu, 5.A., CANNon, B., Carter, E., ErcHer, M.. AND HEcuTeR,H., March 1957 Medical Survey of Rongelap and Utirtk People Three Years After Exposure to Radioactwe Fallout, BNL 501 (T-119), June 1958. Capt. B.E. Bassham, (MC) USN, Senior Medical Officer, and Mr. R. J. Umhoefer, Trust Territory 6. Smitute, O., Zone electrophoresisin starch gels: Group A.R. Luedecke, USAF, and his staff at Eniwetok 7. Rosains, J., Reverse-flow zone electrophoresis: A methodfor determining the thyroxine-binding capacity of serum protein, Arch. Biochem. Biophys. 63, 2 Representative, were most helpful to the group. The CommanderofJoint Task Force Seven, Gen. as well as the JTF-7 liaison officers, particularly Maj. Chester Steele, USA, at Hickam Air Force Base and Lt. Comdr. L. Steinmeyer, USN, at Kwajalein were most helpful. We appreciate greatly the assistance of Mr. Ernest Wynkoop, Office of Test Operations, Atomic Energy Commission, Eniwetok, and his staff during the return trip to Rongelap in May 1958. variations in the serum proteins of normal adults. Bio- chem. J. 61, 629 (1955). (1956). 8. MENDELSOHN, R.S. anD Watkin, D.M., Serum vitamin B,. concentrations determined byL. lezchmanntz assay in patients with neoplastic disease, /. Lab. Clin. Med. 51, 860 (1958). 9. Beaver, P.C., Quantitative hookworm diagnosis by direct smear, j. Parasitol. 35, 125-35 (1949). 10. Ritcnie, L.S., An ether sedimentation technique for routine stool examinations, Bull. U.S. Army Med. Dept. 8, 326 (1948).