1 This article is extracted with permission from the complete report, published in the Journal of the Irrigation and Drainage Division, Proceedings of the American Society of Civil Engineers, Vol. 90, No. IR4 (December 1964), Part 1, pp. 73–84.
2 Other panel members were Vincent J. Schaefer (Vice-Chairman), Joel E. Fletcher (Recorder), John C. Bellamy, Roscoe R. Braham, Jr., Lyle D. Calvin, Quentin L. Florey, Paul B. MacCready, Jr., Wendell A. Mordy, Edward A. Morris and Richard A. Schleusener.