Minutes of a meeting of the British Committee for Co-operation with UNESCO in the Natural Sciences ' At the thirteenth meeting of the British Committee for Co-operation with Unesco in the Natural Sciences, held in the rooms of the Royal Society on Thursday 26 April 1956: Present; Sir Cyril Hinshelwood, Foreign Secretary, Royal Society, Chairman; Professor J D Bernal, Association of Scientific Workers; Mr L Brookes, Ministry of Education; Professor G L Brown, Secretary, Royal Society; Mr R Caalder, Ministry of Education; Dr G E R Deacon, British National Committee for Geodesy and Geophysics; Mr T Dewhurst, Parliamentary and Scientific Committee; Dr S F Dorey, Royal Society; Mr F J C Herrald, Medical Research Council; Professor A V Hill, International Council of Scientific Unions; Dr Edward Hindle, British Association; Professor W V D Hodge, British National Committee for Mathematics; Mr E D Jourdain, Advisory Council on Scientific Policy; Mr E Bolton King, British Council; Dame Kathleen Lonsdale, British National Committee for Crystallography; Mr E M Nicholson, Nature Conservancy; Sir John Simonson, Royal Society; Professor F J M Stratton, British Association; Sir Alexander Todd, British National Committee for Chemistry; Joint Secretaries; Mr J S Arthur, Ministry of Education; Dr D C Martin Mr F C Bowden and Mr D Rhind attended by invitation. Dr A King represented the Secretary of the department of scientific and Industrial Research. Matters discussed; 107. Minutes 108. Matters arising from the Minutes 108 (a) Membership of Committees 108 (b) International Computation Centre 109. International Union for the Protection of Nature 110. International Advisory Committee on Marine Sciences 111. International Advisory Committee on Humid Tropical Research 112. Study Group on Cell Growth 113. Peaceful Uses of Atomic Energy 114. International Advisory Committee on Research in the Natural Sciences programme of UNESCO 115. Draft Programme and Budget for 1957 - 58. ' 26 April 1956