Edited by Hugh L. Keegan and W. V. Macfarlane. edited by A. Whelan and J. L. Craft. edited by Alistair G. J. MacFarlane. edited by H. A. Blough and J. M. Tiffany. edited by J. M. Lothian and T. W. Craik. edited by P. Morgan and B.H. Baker. edited by John J. Bergan and James S. T. Yao. edited by John W. Morgan and Hyman Bass. edited by Neville Maxwell and Bruce McFarlane. edited by R. Houwink and N. A. de Bruyne.