Edited by T.C. Griffith and E.A. Power. edited by G.G. Birch and K.J. Parker. edited by A.G. Milnes and C.J. Miner. edited by C.R. Brundle and A.D. Baker. edited by R.G. White and J.G. Walker. edited by W.A.D. Griffiths and D.S. Wilkinson. edited by Keith Griffin and Zhao Renwei. edited by W. J. Irvine and J. F. Porter. edited by H. Martin and F.W. Eder. edited by I.M. MacLeod and A.D. Heher.