Journal of Hydraulic Engineering.. Vol. 117 No. 4 (1991). 

 - New York : American Society of Civil Engineers.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Discussion on April 1991 in Vol. 117 No. 4. 
<br/><br/>EDITORIAL. TECHNICAL PAPERS : Vortices in Hydraulics / Enzo Levi. Entrainment of Bed Sediment into Suspension / Marcelo Garcia and Gary Parker. Bed Shear Stress and Scour over Bed-Type River Intake / Alastair G. Maclean. Prediction of Maximum Scour Depth at Submarine Pipelines / Yee-Meng Chiew. Leakage of Clogged Channels that Partially Penetrate Surficial Aquifers / David A. Chin. Flood-Frequency Derivation from Kinematic Wave / Luis Cadavid, Jayantha T. B. Obeysekera, and H. W. Shen. The Kinematic Wave Controversy / Victor M. Ponce. TECHNICAL NOTE : Uniform Aerated Chute Flow / Willi H. Hager. DISCUSSIONS : New Plotting-Position Formula for Pearson Type-III Distribution. Van-Thanh-Van Nguyen, Nophadol In-na, and Bernard Bobee / Shenglian Guo. Closure by author. Riprap Design. Stephen T. Maynord, James F. Ruff and Steven R. Abt / Anand Prakash, M. Shafai-Bajestan and Maurice L. Albertson. Closure by authors. ERRATA.