Transactions of the International Astronomical Union: Proceedings of the Fifteenth General Assembly Sydney 1973 and Extraordinary General Assembly Pol [Paperback]

The three years since the Brighton General Assembly have been the most active period in the history of the Union. 33 IAU Symposia and Colloquia, the first Regional Meeting under the Auspices of the IAU, several co-sponsored Meetings and many other special projects. All this culminating with two General Assemblies in two opposite parts of the Earth, Australia and Poland. At the same time the membership of the Union rose to 3200, the number of Commissions to 40, the number of adhering countries to 47. The present Volume gives a general picture of the Union's recent activity. It contains the report of the Executive Committee, the report of the General Assembly, including the Commissions, Meetings, a short report on the Extraordinary General Assembly and an Appendix with the Members and Commissions of the IAU and the approved names of Lunar and Martian features. I take this opportunity to thank all our collaborators, members of the Executive Committee, Presidents of Commissions, Chairmen of Specific Projects, IAU Secrt;taries and all the Members of the IA U for their contribution to keep our Union a living body of active scientists and a big inter? national family. G. CoNTOPOULOS General Secretary CONTENTS Page No.1 Report of the Executive Committee 197072.- 2 Welcoming Ceremony  Report of the General Assembly.- Report of the Welcoming Ceremony, Sydney, 22 August 1973.- Report of the XVth General Assembly (with Resolutions included).- R?solutions adopt?es par lAssemblee G?n?rate.- Resolutions adopted by the General Assembly.- New Members of the Union.- Appointment of the Presidents and Vice-Presidents of Commissions.- The place and date of the XVIth General Assembly.- Election of the new Executive Committee.- Addresses by the retiring and newly elected Officers.- Closing Ceremonies.- 3 Reports of Meetings of Commissions Comptes Rendus des S?ances des Commissions.- Commissions No. 4 Ephemerides (Eph?merides).- 5 Documentation.- 6 Astronomical Telegrams (T?l?grammes Asl“&