Minutes of the British National Committee for Co-operation with UNESCO in the Natural Sciences Meetings held: 1. 27 June 1947 2. 30 September 1947 3. 16 January 1948 4. 25 May 1948 5. 31 August 1948 6. 15 June 1948 7. 19 October 1948 8. 24 May 1949 9. 8 March 1950 10. 18 June 1950 11. 23 October 1950 12. 25 April 1951 13. 16 November 1951 14. 28 February 1952 15. 23 January 1952 16. 27 May 1952 17. 16 July 1952 18. 6 october 1952 19. 1 November 1952 20. 10 June 1953 21. 18 December 1953 22. March 1954 23. 15 September 1954 24. 28 October 1955 25. 26 April 1956 27 June 1947 to 26 April 1956