Letter from Thomas Gold to Professor Donald H Menzel, Director, Harvard College Observatory, Cambridge 38, Massachusetts The dates for the lunar symposium at Goddard suit Gold. He admits some difficulty in making useful suggestions for it, since he is organising a similar event at the Royal Society and most of his ideas have been incorporated there. Gold believes it is imperative to have senior people from NASA present to hear the discussion. Offers a range of subjects for consideration with matching names of experts. Gold would be willing to give a summing up talk and thinks that his correspondent should do the same. Notes that radar research has been ignored by many of his colleagues so that the symposium would be an opportunity to bring together main lines of lunar research. 28 December 1964