BRITISH LIBRARY. General Catalogue of Printed Books to 1955, New York: Readex, 1967, 27 volumes, 4°, compact edition, original blue cloth; General Catalogue of Printed Books: Ten-year Supplement 1956-1965, New York: Readex, 1969, 5 volumes, original blue cloth. With 3 volumes of the 1966-70 supplement. (35)