Correspondence from W.J.G. Beynon and others to Edward Appleton, dated 1954. The correspondence relates to U.R.S.I [Union Radio-Scientifique Internationale] and M.C.I. [Mixed Commission on the Ionosphere] affairs, and especially regarding the meeting at Brussels, August, planned Symposium on Eclipse results, International Geophysical Year arrangements, etc. It includes a paper by J. Paton on aurora 1952-1954, prepared for Rome meeting; paper by A.C.B. Lovell on radio echo research at Jodrell Bank, prepared for Brussels meeting; 'Notes on the Theoretical Discussions', by Appleton, for report of the Brussels meeting; and advance programme for Symposium on 'Solar Eclipses' planned for August 1955.