Ernst Chain, Istituto Superior di Sanita, Rome to Mr Turpin , Secretary of Faculties, University Registry, Oxford At request of Italian Government, has spent past year in Rome organising Department of Biochemistry at the Institute - was granted leave of absence from Oxford University for a year - needs to stay in Rome for at least another year and feels obliged to resign as University Demonstrator in Chemical Pathology - hopes he will be able to renew his association with the University at a future date. 15 September 1949