1. Research Hydraulic Engr., Spillways and Conduits Section, Structures Branch, Hydraulics Div., U.S. Army Engineer Waterways Experiment Station, CE, Vicksburg, Miss.
2. Chf., Spillways and Conduits Section, Structures Branch, Hydraulics Div., U.S. Army Engineer Waterways Experiment Station, CE, Vicksburg, M. S