edited by M. A. Epstein and B. G. Achong. edited by D. A. Brannan, J. G. Clunie. edited by C.R. Ireland, S.P. Long. edited by M. J. Blackie and J. B. Dent. edited by A. G. Cullis and D. C. Joy. edited by F. A. Skinner and J. G. Carr. edited by L. B. Sand and F. A. Mumpton. edited by G. G. Roberts and M. J. Morant. edited by A. A. Thaer and M. Sernetz. edited by C. A. Pasternak.