AECD-3446 \ "sy -12- ALNL Oy eabel During the summerof 1949 an expedition was again in the field and like the 1948 expedition included a study of the Eniwetok area in addition to a re-check of Bikini Atoli. The emphasis of the studies has changed from year to year as various problemsandpoints of interest developed, but the major effort has been directed toward gathering additional information on the following basic problems; 1, The measurement of the presence or absence of radiation in the area studied, 2. The determination of the presence or absence of radiation in the various native faunal and floral systems. 3. The selection by the various organisms of radioactive materials. 4, Tissue selection of radioactive materials. 5. The effect upon biotic forms from exposure to or absorption of radioactive materials. 6. The role of the native fauna and flora in the translocation and concentration of radioactive materials, Additional objectives of the study that possibly are less specific but are important in the over-all contribution are the development of techniques and procedures for evaluating radiation contamination of biotic systems and the training of specialists to carry on such investigations, ORGANIZATION The radiobiological resurvey of Bikini-Eniwetok Atoll during the sun.imer °f 1949 again demonstrated the advantages of cooperative research effort. The Atomic Energy Commission, the United States Navy, the Uni- versity of Washington, the State College of Washington, and the University of Hawaii contributed personnel, equipment, and facilities to make the study possible, The continued support of the Atomic Energy Commission in providing funds and administrative direction to the research has made it possible to continue. The Washington Office of the Commission, especially the Division of Biology and Medicine, under the direction of Dr, Shields Warren,