Letter from Thomas Gold to Professor S K Runcorn FRS, Head, School of Physics, The University, Newcastle upon Tyne, NE1 7RU, England Has his circular regarding the Commission 17 meeting in Grenoble. Hopes there will be an opportunity for the discussion of the major questions regarding the derivtion of the lunar surface, with a wider perspective than is normally encompassed by the Houston meetings, Gold would like to speak at such a session on 'The Exogenic View of the Lunar Surface'. His proposed Houston abstract is enclosed to indicate the nature of the material he would like to bring up for discussion. 25 February 1976