ed. by Peter J.R. Challen. ed. by Howard P. Kallen. ed. by Walter J. Hamer. ed. by P. W. Harben. ed. by Walter G. Berl. ed. by F. Y. Cheng ed. by Helen D. Megaw. ed. by J. A. White. ed. by John J. H. Miller ed. by L. A. Hill.