edited by W. E. Lewis and S. Tandanand. edited by S.M. Lewis, R.J. Bayly. edited by W. J. Gettins and E. Wyn-Jones. edited by W. D. P. Stewart. edited by W. E. Spear. edited by S. D. Lee, J. Brian Mudd. edited by J. T. Devreese and V. E. van Doren. edited by A. C. Knipe and W. E. Watts. edited by B. E. C. Nordin. edited by D. E. Reichle.