edit by S. I. Hayakawa and P. J. Fletcher edit by A. J. Thomson and A. V. Martinet edit by C. M. Schwarz and M. A. Seaton edit by G. B. Dantzing and B. C. Eaves edit by P. L. Sandler and C. L. Stott edit by C. K. Ogden and I. A. Richards edit by C. T. Onions and B. D. H. Miller edited by Richard Beadle and Alan J. Fletcher. edit by A. J. Durelli and V. J. Parks edit by A. J. WYATT and S. E. GOGGIN