edited by R.S. Cohen and M.W. Wartofsky. edited by L.E. Glynn and M.W. Steward. edited by P.J. Lea and G.R. Stewart. edited by F.W. Wiffen and J.A. Spitznagel. edited by C. L. Chien and C. R. Westgate. edited by A. Whelan and J. L. Craft. edited by A.H. Cardon and G. Verchery. edited by C.J. Colbourn and M.J. Colbourn. edited by Gary R. Orren and Nelson W. Polsby. edited by G. Turian and H.R. Hohl.