Folder E.8.1: 'Variational Methods in Quantum Mechanics'. Quantum Theory Conference, Oxford, 1-3 October 1969: programme, brochures, information for participants, list of members, invitations and correspondence with speakers, accounts and invoices, 1968-1969. Folder E.8.2: Philosophical Magazine. Correspondence regarding refereeing of papers, 1949, 1969-1972. Folders E.8.3 - E.8.6: The Physical Society (The Institute of…