edited by D. C. Ellwood and J. Melling, P. Rutter. edited by R. G. Edwards and J. F. Porter. edited by A. S. Strub and H. Ehringer. edited by B. Greenwood and R.A. Davis, Jr. edited by V.H. Heywood and D.M. Moore. edited by W. J. Irvine and J. F. Porter. edited by C.H. Bamford and C.F.H. Tipper. edited by D. G. Ashwell and R. H. Gallagher. edited by D. Rickwood and B.D. Hames. edited by I.M. MacLeod and A.D. Heher.