1. Asst. Prof. of Hydromechanics, School of Civ. Engrg., Purdue Univ., East Lafayette, Ind. 47907
2. Engr., Snowy Mountains Engrg. Corp., Cooma, Australia.
3. Grad. Research Asst., School of Civ. Engrg., Purdue Univ., East Lafayette, Ind. 47907.
4. Grad. Student, Dept. of Agronomy, Purdue Univ., West Lafayette, Ind. 47907