OPINION RESEARCH CORPORATION 44 NASSAU STREET PRINCETON, N.J. PRINCETON 1675 New York Office TEN ROCKEFELLER PLAZA CLAUDE ROBINSON, PRESIDENT NEW YORK 20, N. Y. April 14, 1945 Dr. Ludwig E. VonMises New York University Washington Square New York, N. Y. Dear Dr. VonMises: Enclosed is a copy of the guest list for Wednesday night's meeting at the Union League Club. I want to tell you again how much we appreciated your contribution to this session. A number of people talked to me about it later, and the general conclusion was that it was enormously worthwhile. I think we ought to take every opportunity possible to get your ideas around, and I feel that this meeting has helped a little bit toward that end. Regards, Claude Robruson CR:ak Enclosure