Reprint instructions and orders for 'The Observatory' magazine (Dec. 1968) vol. 88, no. 967, and correspondence with contributing authors including: B.Y. Mills (University of Sydney; on behalf of A.E. Le Marne), Konrad Rudnicki (Warsaw University), Wade Wellman (Iowa), E.R. Seaquist (University of Toronto), C.W. Allen (University of London), Edgard Vandekerkhove (Brussels), D.E. Blackwell (Oxford), S.M.V. Clube (Royal Observatory, Cape Town), J.F. R. Gower (Canada) and Chandra Wickramasinghe (University of Cambridge).