Abstract: Correspondence discussing membership of the Tehran Sanitary Council, including concerns over German subjects in the nominal service of foreign governments (Norway, the Netherlands) and their tendency to promote German policy. The correspondence details the approaches to the Greek and Belgian governments to suggest that they be represented by the British on the Persian Sanitary Board. Also discussed are ideas about the causes of the outbreak of plague and cholera in the Persian Gulf ports. The file also contains copies of the proceedings of the meetings of the Persian Sanitary Council (Conseil Sanitaire de l'Empire de Perse).Correspondents include Sir Edward Grey, Secretary of State for Foreign Affairs; Sir George Barclay; Percy Zachariah Cox, Political Resident in the Persian Gulf; Sir Henry McMahon; and the Secretary to the Government of India in the Foreign Department.Physical description: Foliation - the main foliation sequence (used for referencing) commences at the inside front cover with 1 and terminates at the inside back cover with 256; these numbers are written in pencil, are circled, and are located at the top right corner of the recto side of each folio.