The second session of the General Assembly of the International Union for the Protection of Nature was held in the Institut de Sociologie, Leopold Park, Brussels, from 18th to 23rd October, 1950, the first having been held two years previously at Fontainebleau, immediately after the establishment of I.U.P.N. The United Kingdom was represented by Dr. G. F. Herbert Smith (Leader), Miss P. Barelay-Smith, Dr. John Berry, Captain Keith Caldwell, Mr. A. B. Duncan, Dr. F. C. Fraser, and Dr. J. Ramsbottom. Thirty-four countries and twelve international organizations were represented. The President and Secretary-General were Dr. Ch. J. Bernard and Mr. J. P. Harroy who hold corresponding offices in the Union.