Macdonald and Jane's , London, 1978. ISBN 0354042297. Revised and expanded edition. Black hard cover with gilt titles on spine. Boards clean and bright. 322pp. Part 1 - Articles by the late LL S Lloyd selected and edited with an introduction and bibliography by Hugh Boyle. Part 2 - Definitions, esperiments, measurements, calculations, various appendices and tables by Hugh Boyle. Contents tight and clean apart from a mark on title page left by a removed price sticker. No inscriptions. Dust jacket is very good and not price clipped. Very tidy copy.