File contains:
1) Crystallographic Book List edited by Helen Megaw for the International Union on Crystallography Commission on Crystallographic Teaching, March 1965, together with first supplement, September 1966; also memorandum, 7 September 1963, concerning the need for a new edition, and related correspondence 1966-69; and copy of 1962 edition of book list;
2) Correspondence concerning H M's input to and advice on a book exhibition organised on behalf of the International Union of Crystallography for its Exhibition of Scientific Instruments, Models and Books at congresses in Rome, 1963, and Moscow, 1966; also catalogue of the book exhibition arranged for the IUC's 1960 congress.