Edited by:
F. G. Bell, Department of Civil Engineering, Teesside Polytechnic, Middlebrough, TS1 3BA
M. G. Culshaw, Engineering Geology and Reservoir Rock Properties Research Group, British Geological Survey, Keyworth, Nottingham NG12 5GG
J. C. Cripps, Department of Geology, University of Sheffield, Sheffield S1 3JD and
M. A. Lovell, Department of Geology, University of Nottingham, Nottingham NG7 2RD