Minutes of the meeting of the Optical Subcommitte of the British National Committee for Physics Present: Mr T Smith [Chairman]; Matters discussed; 1. Minutes The minutes of the meeting held on 17 January were confirmed 2. Matters arising from t he minutes 3. London meeting of the International Optical Commission 1950 4. London Conference on Optical Instruments, 19-26 July 1950 5. Proceedings of the London Conference 6. Italian communication Recommendation to Council; Minte 3 london Meeting of the International Optical Commission 1950 That the Royal Society delegtes to the International Optical Commission meetiing in London in July 1950 be instructed according to documenet OSC/4 (50). 22 May 1950