(1) Introduction to physical hydrology. (2) Introduction to fluvial processes. (3) Introduction to geographical hydrology.: R. J. Chorley (ed.): Methuen, London, and Barnes and Noble, New York, 1971. Paper back Editions. 210 pp., approx., in each volume. Total of 200 fig., 912 × 612 ins. Biblio. Index. £ 1.10 net, in U.K. only