Letter from John W Findlay, Director, AIO [Arecibo Ionospheric Observatory] and Thomas Gold, Director, CRSR [Center for Radiophysics and Space Research], to Dr Marshall Harrington, General Physics Division, Air Force Office of Scientific Research, Washington, DC 'Comments on the Proposal No. 1791 from the University of California, San Diego (Principal Investigator: Professor M H Cohen), to the AFOSR [Air Force Office of Scientific Research] for a Grant for High Resolution Studies of Discrete Radio Sources'. 6 May 1966