Minutes of the meeting of the Optical Subcommittee of the British National Committee for Physics Present: Professor R W Ditchburn [Chairman]; Dr J M Burch; Mr C J Cook; Dr J Dyson; Professor O S Heavens; Professor H H Hopkins; Dr H G Jerrard; Dr G L Rogers; Mr G M Sisson; Professor W D Wright; Dr C G Wynne. Matters discussed; 1. Minutes The mihnutes of the meeting held on 21 june 1966 (OSC/4 (66)) were confirmed 2. Membership of the Optical Subcommittee 3. 1969 Conference on Optical Instruments, Reading 14 - 19 July 4. Letter fromm the President and Secretary-Treasurer of ICO 5. National Institute of Optics 6. Vote of thanks to the Chairman On the propsal of Professor W D Wright, the subcommittee recorded its appreciation of the service of Professor R W Ditchburn over the past six years as chairman and as a member of the Subcommittee since its foundation. 9 November 1967