edited by Howard E. Boyer, Timothy L. Gall. edited by Robert A. Goyer, Myron A. Mehlman. edited by Howard F. Conn and Rex B. Conn. edited by Howard I. Maibach, Gerald A. Gellin. edited by Howard R. Huff, Ronald R. Burgess. edited by Stephen R. Kellert and Timothy J. Farnham. edited by Howard G. Barth. edited by Charles F. Walton ; co-editor, Timothy J. Opar.