JOSEPH D. ROSEN M.B.A. ACCOUNTANT - CONTROLLER 258 RIVERSIDE DRIVE NEW YORK 25, N. Y. TEL. MO 2-3320 February 14th 1959 Professor Mises New Yor University Washington Square. Sir, Following the discussion in the last seminar I allow myself to present my problem in writing, and hope that you will discuss it during the next session of the seminar. Very truly yours, Toseph D. Rooe Joseph D.Rosen