Edited by:
M. G. Culshaw, Engineering Geology and Reservoir Rock Properties Research Group, British Geological Survey, Keyworth, Nottingham NG12 5GG
F. G. Bell, Department of Civil Engineering, Teesside Polytechnic, Middlesbrough TS1 3BA
J. C. Cripps, Department of Geology, University of Sheffield, Sheffield S1 3JD and
M. O'Hara, Department of Geology, Plymouth Polytechnic, Plymouth PL4 8AA