Letter from Thomas Gold to Dr William J Moore, Code 64754, Naval Research Laboratory, Washington DC Invites Moore to spend a sabbatical year at Cornell University, working both in the Center for Radiophysics and Space Research and in the Laboratory for Atomic and Solid State Physics. they are particularly intetrested in his work onthe development of submillimeter solid state detectors for space applications. Gives details of what they can offer and when. 17 April 1974