Letter from Howard Walter Florey to A M Cooke, Radcliffe Infirmary, Oxford Will probably soon be receiving a quantity of penicillin from America - would like support of staff in carrying out clinical trials at the Infirmary - lists organisms against which penicillin is effective - suitable cases to be treated with penicillin - he wishes to control dosage and mode of administration - his wife should do the detailed work concerning administration - probably helpful if a lecture on penicillin be given to staff. Two copies. 24 November 1941