Book reviews: Gregory,K.J. and Walling,D.E. editors,1979: Man and environmental processes: a physical geography perspective. Folkestone: Dawson. xiv + 276 pp. £10.00

Cooke, R.U. and Doomkamp, J.C. 1974: Geomorphology in environmental management. Oxford: Oxford University Press.

Drury, W.H. and Nisbet, I.C.T. 1973: Succession. Journal of the Arnold Arboretum 54, 331-68.

Dunne, T. and Leopold, L.B. 1978: Water in environmental planning. San Francisco: Freeman.

Lovelock, J.E. 1979: Gaia. A new look at life on earth. Oxford: Oxford University Press.

Odum, E.P. 1969: The strategy of ecosystem development. Science 164, 262-70.