edited by E. R. Sears and L. M. S. Sears. edited by J. W. S. Hearle and R. H. Peters. edited by P. C. Kearney and D. D. Kaufman. edited by R. Meredith and J. W. S. Hearle. edited by J. W. Bridges and L. F. Chasseaud. edited by E.D. Adams and G.G. Ihas. edited by J. D. Williams and A. M. Geddes. edited by J. R. Norris and M. H. Richmond. edited by D.G. Jones and D.R. Davies. edited by E. S. Pearson, H. O. Hartley.