Letter from Thomas Gold to John Lear, Science Editor, Saturday Review, 380 Madison Avenue, New York Believes that Lear has understood the problem of lunar dust very well, but that no more public controversy should be stirred up. Kuiper's data has not been presented at scientific meetings and Gold cannot comment upon it. Discusses the startling uniformity of the Moon's surface and the internal and external agents of change. Gas seepage as a cause of demarcation lines and the potential for lunar vulcanism. 12 October 1964