A circular describing the 1971 Herstmonceux Conference; a programme; a list of heads of astronomical departments (optical), heads of radio astronomy departments and individuals; a list of expected visitors; an application form for attendance; a list of delegates to be accommodated in Herstmonceux Castle; a list of delegates accommodated outside the castle, and their location; the conference photograph, with a key identifying delegates; a note from B.E.J. Pagel on sleeping accommodation; a note on catering arrangements; a list of Royal Greenwich Observers at the conference; a list of orders for the conference photograph; eight letters on the photograph and the identification of participants; a postcard on the working location of C. Rapley; a letter to Peter Dominic Limited on settling an account; a refreshments invoice; a special conference photograph, with a key and list of names; an accommodation list and a list of visitors; a memorandum on 'The Galaxy and distance scale' containing a schedule of events; a press notice on the conference; a memorandum on the conference; a memorandum on a cricket match - Herstmonceux v the World; an invoice for meals; a slip of paper on the cricket tea of 18 August; a memorandum entitled 'information for staff'; eleven letters from Donald Lynden- Bell; a preliminary programme listing events; a preliminary outline listing events; and a memorandum on arrangements.