Item A.20.1: Speech at official opening of Walsall and Staffordshire Technical College, October 1962.

Item A.20.2: Sir D. Owen Evans Lectures, Aberystwyth, 1966. Three lectures on: 'The influence of science on the Christian faith'.

Item A.20.3: 'What is a human being?'. Lecture, with ensuing questions and answers, given in Sydney, Australia, August 1969.

Item A.20.4: 'Science and society. The human use of human beings'. Lecture given in Logan, Utah, August 1971.

Item A.20.5: Cassette of letters, dictated by Coulson ready for typing in the department. Miss R. Schwerdt describes it as 'a very typical batch of letters, probably November/December 1973' (Coulson was already seriously ill, and died in January 1974).

Miss Schwerdt lists the contents as follows: letters regarding engagement; book review; a proposed Theoretical Chemistry Institute; the future of Summer Schools; letter to OUP about new book; letter about visiting professor from Israel; letter about someone's promotion; letter to a research student in difficulties.