 In 1966 he undertook field studies in the Pacific, visiting the Gazelle Peninsula in New Britain, Papua New Guinea; followed by the Santa Cruz Islands and the Reef Islands in the Solomon Islands.In the 1970s he carried out field work in the Papua Province of New Guinea belonging to Indonesia, near the border with Papua New Guinea.In 1951 he obtained the support of the Notgemeinschaft der Deutschen Wissenschaft (Emergency Association of German Science) to carry out field work on cultural change in the Kingdom of Tonga from October 1951 to June 1952.