Papers Relating to the Vienna Circle Papers, Rogers correspondence and notes on research into the Vienna Circle (1932-1933) held in Vienna to which Ayer attended. Includes: Photocopies of correspondence sent from A J Ayer to Isaiah Berlin and other contemporaries (1932-1933) Copy of "The Vienna Circle", By A J Ayer (1981) Copy of "On the Idea of Necessary Connections", by A J Ayer handwritten (20th century) 1994-1996