Book reviews: Hodgson,J. M. 1978: Soil sampling and soil description. Oxford: Clarendon Press. ix + 241 pp. £ 10.00

Avery, B. W. and Bascombe, C. L. editors, 1974: Soil survey laboratory methods. Soil Survey Technical Monograph 6. Rothamsted Experimental Station, Harpenden.

Clarke, G.R. 1971: The study of the soil in the field, fifth edition assisted by P. H. T. Beckett. Oxford: Clarendon Press.

Hodgson, J. M. , editor, 1974: Soil Survey field handbook. Soil Survey Technical Monograph 5. Rothamsted Experimental Station. Harpenden.

Soil Conservation Service 1975: Soil taxonomy. Agricultural Handbook 436. Washington DC: US Department of Agriculture, Soil Conservation Service.

Wallwork, J.A. 1970: Ecology of soil animals. New York: McGraw Hill.

1976 : Distribution and diversity of soil fauna. London and New York: Academic Press.

Webster, R. 1977: Quantitative and numerical methods in soil classification and survey. Oxford: Clarendon Press .