Folders E.4.1-E.4.2: Institute of Mathematics and its Applications.

Coulson served as its President 1972-1973. Committee papers and related correspondence; correspondence regarding Coulson's Presidential Address 'Mathematics and the Real World'; correspondence regarding the Institute's membership, publications, conferences, etc. Copy of Coulson's address on 'Mathematics and Biology'. 1959, 1964-1973.

Folder E.4.3: Institute of Physics and the Chemical Society.

Correspondence regarding the organization of a joint conference on photo-electron spectroscopy, Oxford, 14-16 September, 1970. 1969-1970.

Folder E.4.4: International Academy of Quantum Molecular Science.

Correspondence regarding meetings and symposia, award of Academy's annual prize, 1967-1973.