FEBRUARY, I958 Vol. 83, No. 983 THE ANALYST PROCEEDINGS OF THE SOCIETY FOR ANALYTICAL CHEMISTRY ORDINARY MEETING AN Ordinary Meeting of the Society, organised by the Microchemistry Group, was held at 7 p.m. on Friday, February 7th, 1958, in the meeting room of the Chemical Society, Burlington House, London, W.l. The Chair was taken by the President, Dr. J. H. Hamence, M.Sc., F.R.I.C. The following papers were presented and discussed : “Applications of the Conway Diffusion Technique to the Analysis of Radioactive Materials for Trace Impurities,” by J. K. Foreman, B.Sc., A.R.I.C.; “The Use of Long Chain Quaternary Amine Salts in the Solvent Extraction of Metal Ions,” by R. Powell, A.R.I.C. NEW MEMBERS ORDINARY MEMBERS James Alexander, A.H.-W.C. ; Robert B. Carson, B.A., M.Sc.(Wisconsin), F.C.I.C. ; George Anthony Davidson, A.M.C.T., A.I.M. ; Robert Greenhalgh, B.Sc. (Lond.) ; Harry Ashworth Main, BSc. (Manc.) ; Lloyd A. McDonald, B.S. ; Eric Morris, L.I.M. ; Nakaaki Oda, Dr.Tech. (Tokyo) ; Eric Hodson Paulson, M.Sc. (Manc.) ; Eric Herbert Brodie Sellwood, B.Pharm. (Lond.), F.P.S., A.R.I.C.; Brian Alan Wills, B.Pharm. (Nottingham), Ph.D. (Lond.), M.P.S., A.R.I.C. WESTERN SECTION A JOINT Meeting of the Section with the Cardiff and District Section of the Royal Institute of Chemistry was held at 7 p.m. on Wednesday, December 18th, 1957, at the King’s Head Hotel, Newport. The Chair was taken by the Chairman of the Western Section, Mr. P. J. C. Haywood, B.Sc., F.R.1 .C. A lecture on “Inorganic Chromatography” was given by F. H. Pollard, Ph.D. MIDLANDS SECTION AN Ordinary Meeting of the Section was held at 6.30 p.m. on Thursday, January 16th, 1958, in the Mason Theatre, The University, Edmund Street, Birmingham, 3.The Chair was taken by the Chairman of the Section, Dr. R. Belcher, F.R.I.C., F.1nst.F. The following paper was presented and discussed : “The Analytical Chemistry of Nitrogen,” by A. F. Williams, BSc., F.R.I.C. . MICROCHEMISTRY AND PHYSICAL METHODS GROUPS A JOINT London Discussion Meeting of the Microchemistry and Physical Methods Groups was held at 6.30 p.m. on Wednesday, January 8th, 1958, in the restaurant room of “The Feathers,” Tudor Street, London, E.C.4. The Chair was taken by the Chairman of the Physical Methods Group, Mr. R. A. C. Isbell, A.1nst.P. A discussion on “Advantages of Spectrophotometric Titrations” was opened by R.A. Chalmers, BSc., Ph.D. 6566 HASLAM, HAMILTON AND JEFFS : THE DETERMINATION OF [Vol, 83 MICROCHEMISTRY AND BIOLOGICAL METHODS GROUPS A JOINT London Discussion Meeting of the Microchemistry and Biological Methods Groups was held at 6.30 p.m. on Wednesday, December 18th, 1957, in the restaurant room of “The Feathers,” Tudor Street, London, E.C.4. The Chair was taken by the Chairman of the Biological Methods Group, Dr. S. K. Kon, F.R.I.C. An informal discussion on “The Weighing and Measuring of Small Quantities’’ was opened by G. F. Hodsman, BSc., Ph.D., A.Inst.P., and R. Goulden, A.R.I.C. BIOLOGICAL METHODS GROUP THE thirteenth Annual General Meeting of the Group was held at 6.30 p.m. on Wednesday, December 18th, 1957, in the restaurant room of “The Feathers,” Tudor Street, London, E.C.4, immediately before the joint discussion meeting reported above. The Chair was taken by the Chairman of the Group, Dr. S. K. Kon, F.’R.I.C. The following Officers and Committee Members were elected for the fortlicoming year :-Chairman-Dr. S. K. Kon. Vice-Chairman-Dr. J. I. M. Jones. Hon. Secretary and Treasurer-Mr. K. L. Smith, Standards Department, Boots Pure Drug Co. Ltd., Notthgham. Members of Committee- Miss J. Stephens, Messrs. G. C. Ashton, W. A. Broom, s. A. Price, Magnus Pyke and J. Simpson. Mr. J. W. Lightbown was re-appointed Hon. Recorder and Messrs. D. M. Freeland and J. H. Hamence were re-appointed Hon. Auditors.