Book reviews : Schumm,S.A.,Mosley,M.P. and Weaver,W.E. 1987: Experimental fluvial geomorphology. New York: John Wiley. 413 pp. £45.00 cloth

Gilbert, G.K. 1914: The transportation of debris by running water. United States Geological Survey, Professional Paper 86, 263.

Kashiwaya, K. 1987: Theoretical investigation of the time variation of drainage density. Earth Surface Processes and Landforms 12, 39-46.

Schumm, S.A. 1977: The fluvial system. New York : John Wiley.

Simons, D.B. and Richardson, E.V. 1966: Resistance to flow in alluvial channels. United States Geological Survey, Professional Paper 422-23, 61.