THE third of a series of discussions on the organisation of scientific research in the British Commonwealth, arranged by the Society for Visiting Scientists, was held at the Society's House at 5 Old Burlington Street, London, on January 9, with Dr. C. S. Hanes, director of the Food Investigation Department, Department of Scientific and Industrial Research, in the chair. The speakers were: Dr. W. E. van Heyningen, assistant director of the Wellcome Physiological Research Laboratory; Major E. Boden, Council for Scientific and Industrial Research, Canada; Dr. R. Y. Stanier; Dr. J. G. Malloch, chief scientific liaison officer for Canada; Dr. W. Cullen; Colonel J. H. de Boer, deputy chief of staff, Netherlands Military Administration; Colonel Marquad, head of Army Education Services in South Africa; and Colonel O. M. Solandt, director of Scientific Defence, Canada.