Correspondence regarding the lunch for the International Astronomical Union Executive, including correspondence with L. Perek of the Astronomical Institute of the Czechoslovak Academy of Sciences, Prague, and General Secretary of the I.A.U.; R.C. Pennefather; H.W. Babcock of the Mount Wilson and Palomar Observatories; K.F. Orogodnikov of the University of Leningrad; the Revd Father D.J.K. O'Connell, Director of Specola Vaticana, Castel Gandolfo, Vatican City; B. Strömgren of Copenhagen; P. Swings, Directeur de l'Institut d'Astrophysique, Université de Liège; W. Becker of the Astronomisches Institut, Binningen, Switzerland; R.F. Christy of the California Institute of Technology, Pasadena; P. Ledoux of the Joint Institute for Laboratory Astrophysics, University of Colorado, Boulder; M.G. Pereira de Barros of the Observatório Astronómico, Universidade do Porto, Portugal; M. Schmidt of the Hale Observatories, Pasadena; P. van de Kamp; and A.A. Mikhailov.