Letter from Thomas Gold to Dr Oran W Nicks, Director, Lunar & Planetary Programs, Office of Space Science and Applications, National Aeronautics and Space Administration [NASA], Washington, DC Thanks Dr Nicks for his letter. Says that he is very glad to know that 'such a large measure of agreement' exists on interpreting Surveyor photographs. The JPL [Jet Propulsion Laboratory] report interests him and he will write some comments on it for publication. 20 December 1966