Professor Mary Pickford, Department of Physiology, University Medical School, Edinburgh Letter, dated 15 May 1968, from Pickford to Kosterlitz, asking him to give some advice on 'sucrose gap technique' to Dr. J.F.B. Morrison. Includes a reply letter, dated 16 May 1968. Handwritten letter, dated 15 October 1969, from Pickford to Kosterlitz, asking him whether he knows of a student who would be interested in working with her and who already has experience of the sucrose gap method. Includes a reply letter, dated 22 October 1969, in which Kosterlitz writes that he does not know of anyone suitable for Pickford. Handwritten letter, dated 22 January 1973, from Pickford to Kosterlitz, asking whether there is any room in Kosterlitz's department for Dr. Gerald Cohen. Includes a reply letter, dated 24 January 1973, saying that Kosterlitz had appointed a biochemical pharmacologist in October 1970. Kosterlitz mentions that his department will expand from 110 to 150 students in 1974. Kosterlitz writes that he will retire in September 1973 and suggests that Cohen try for a job in the Department of Therapeutics and Clinical Pharmacology, Aberdeen. Kosterlitz writes, 'We shall stay on in Aberdeen where I shall probably start a Research Unit on narcotic analgesic drugs. I have been asked to continue with my present research work but negotiations are not yet complete'. Letter mentions Pickford's move to Derbyshire. 1968 - 1973