Netfishing at Rongelap, 1959. Marshallese dental practitioner examining teeth as part of medical survey, Rongelap, 1960. Party given by medical team at conclusion Elderly Marshallese male, 1965. Rongelap people entertaining medica! team atfeast Copra being carried ashore. Copra production is of annual survey, Rongelap, 1970. after examinations, Rongelap, 1971. the chief source of income in the Marshall Islands.