Letter from Thomas Gold to Dr Audouin Dollfuss, Observatoire de Meudon, Meudon, Seine & Oise, France Confirms he will be at the meeting at Brighton, and wonders if it would be possible to arrange for himself to present a 15 or 20 minute paper on the present information concerning the moon's surface. This would include an interpretation of the seismic evidence and all other matters that suggest a very deep layer of finely divided material. The evidence for this now seems terribly strong, and the Brighton meeting would have n interest in this. 29 June 1970