January, 1977 CONFERENCES AND MEETINGS 17 Conferences and Meet i ngs Chromatography Discussion Group Symposia February 16, 1977, London A one-day symposium entitled “Ion-exchange and Ion-pair Chromatography.” April 29, 1977, London The Annual General Meeting and Spring Symposium entitled “Applications of Chromato- graphy to Environmental Analysis.” For further information contact the Executive Secretary, Chromatography Discussion Group, Trent Polytechnic, Burton Street, Nottingham, NGl 4BU.Ninth Meeting of the British Mass Spectro- scopy Group September 27-29, 1977, Swansea This Meeting is an open one and will cover all aspects of mass spectrometry, including its chemical and physical applications. In addi- tion to specialist contributions, i t is hoped that a number of papers presented at this meeting will be able to provide an introduction to some of the applications of mass spectrometry for those with less experience in this field.There will also be an opportunity to present a number of papers in poster sessions. Intending contri- butors are invited to submit abstracts for short papers before April 30th, 1977. Further details can be obtained from Dr. J. R. Chapman, Secretary, British Mass Spectroscopy Group, AEI Scientific Apparatus Ltd., Barton Dock Road, Urmston, Manchester, M31 2LD.