Letter from Charles Dodds, Courtauld Institute of Biochemistry, Middlesex Hospital, London to Howard Walter Florey Gives details of composition and manufacturer of Gravol-dex - similar to mixture of benadryl and amphetamine - is trying to get some - if fails, will have some made up - can have some made up for Florey at same time - understands Halsbury tried to get some of the antibiotics that Florey wanted - nervous when NRDC tries to help. 22 February 1955