OCTOBER, 1950 Vol. 75, No. 895 INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY SECTIOX V-ANALYTICAL CHEMISTRY THE Section of Analytical Chemistry of the International Union of Pure and Applied Chemistry, organised at the meeting of the Union, September, 1949, has announced its complete member- ship, which is as follows- Honorary President-Sir Ian Heilbron, F.R.S. Presidertt-Prof. Dr. C. J. van Nieuwenburg, Technische Hoogeschool, Delft, Netherlands. Vice-President-Prof. I. M. Kolthoff, University of Minnesota, Minneapolis, Minn. Ewopea.tz Secretary-Prof. Dr. Paul E. ’illenger, L’Ecole de Chimie de l’Universit6, Geneva, Switzerland. A mericnn Secretary-hilr. Samuel E. Q. Ashley, General Electric Company, Pittsfield, Massachusetts. Other Members-Prof. Dr. Fritz Feigl, Laboratorio da Producao Mineral, Rio de Janeiro, Brazil.Dr. Jan Gillis, University of Ghent, Belgium. Prof. Sir Shanti S. Bhatnagar, Dept. of Scientific Research, New Delhi, India. Mr. R. C. Chirnside, Research Laboratories of The General Electric Company, Ltd., Wembley, England. Prof. F. E. Beamish, University of Toronto, Canada. Prof. G. Charlot, L’Ecole de Physique et de Chimie, Paris, France. ‘This membership, which is considered to be temporary, will function until the meeting in New York in September, 1951. At present the Section membership is concerned with the establishment of the two new Commissions on Physico-chemical Constants and on the Expression of Analytical Results. The Commission on New Analytical Reagents and Reactions, which has been functioning for some time, will continue under the sponsorship of this Section. 509 Dr. Edward Wichers, Sational Bureau of Standards, Washington, D.C. Mr. N. Strafford, Imperial Chemical Industries Ltd., Manchester, England.