Minutes of the meeting of the Optical Subcommittee of the British National Committee for Physics Presetn: Professor R W Ditchburn [Chairman]; Matters discussed; 1. Membership of Subcommitee 2. Minutes The minujtes f the meeting held on 10 June 1963 (OSC/3 63)) previously circulated were confirmed. 3. Financial Statemetns of I.C.O. 4. I.C.O. Conferences, 1964 5. Conference on Optical Instruments, London, 1961 6. Letter from the Secretary-Treasurer of I.C.O. 7. Symposium on the Teaching of Optics 26 November 1964