Letter from Thomas Gold to Dr S Keith Runcorn, Head, School of Physics, University of Newcastly upon Tyne, Newcastly upon Tyne, NE1 7RU, England Apologises for cancelling the trip to AUstralia. Very much regrets this, chiefly for missing out on the Moon meeting, Ask if Runcorn would be willing to read a two page statement if Gold sent him one. 27 July 1973