INTERNATIONAL ACTIVITIES ' Technical Documents Exchange + During the April-June quarter, 54 classified and official use only documents were received from cooperating countries, while the United States transmitted 167, The latter figure Includes identical reports submitted to two or more countries In some cases. The United States ex- changed classified Information as specified in agreements for cooperation with Australia, Belgium, Canada, the Netherlands, Switzerland, and the United Kingdom. Visit Summary During the April-June quarter, 28 United States visitors participated in nine classified conferences in the United Kingdom, Canada, and Australia, while 11 United Kingdom and Canadian representatives visited the United States to attend nine classified meetings. On an unclassified basis, arrangements were made during the quarter for 248 individuals from 33 foreign countries to visit AEC field installations. TRAINING AND EDUCATION Puerto Rico Nuclear Center Architect and design work progressed on the $3.5 million construction project for the nuclear center in Puerto Rico. Dr. Carlos Bonilla, on leave from Columbia University, accepied the post as director of the center, The University of Puerto Rico is providing tem- porary facilities and space pending completion of permanent buildings. A contract was signed with AMF Atomicsfor the design, fabrication, installation, and testing of the 1,000-kilowatt, pool-type research and training reactor, scheduled for operation on the Mayaguez campus by late 1959. The Southern Construction Company of Augusta, Georgia, was awarded the contract for constriction of the reactor building, the laboratory building, and various other auxiliary facilities. The University of Puerto Rico, with the assistance of the AEC, has been conducting a 4week radioisotope techniques training course on a bimonthly basis since August 1957. Puerto Rico Health Physics Symposium In cooperation with the University of Puerto Rico Medical School, the AEC sponsored a health physics symposium held May 26-28 in Puerto Rico. The symposium was atiended by 65 physicians and scientists from the United States and nine Latin American countries. Informztion was exchanged on health physics, and future Latin American needs for training and research in the use and handling of radioactive materials were discussed. There were favorable com ments from the participants, and the attitudes and statements of the Latin American representatives were considered particularly encouraging in view of the recent political events in South America. Inter-American Institute of Agricultural Sciences, Turrialba, Costa Rica The nuclear research project at the Inter-American Institute of Agricultural Sciences at Turrialba, Costa Rica, was inaugurated in April with the official dedication of the gamma field ena radioisotopes laboratory supplied by the United States. Techsical Libraries DOE ARCHIVES Fesresertatives from 13 countries and six international organizations attended a library workshop and conference held by the AEC at Geneva, Switzerland, May 26~—30, to demonstrate UNCLASSIFED ristaran’s Ofced8 peyer ARCHIVE =