1. Assoc. Prof. of Engrg., San Diego State College, San Diego, Calif.; formerly, Grad. Student, Colorado State Univ., Fort Collins, Colo.
2. Prof. and Assoc. Dean for Engrg. Research, College of Engrg., Colorado State Univ., Fort Collins, Colo.
3. Research Hydraulic Engr., USDA, Fort Collins, Colo.