1. Assoc. Prof. of Erosion Control, Mie Univ., Kamihama-Cho, Tsu, Japan; formerly Research Assoc. in Civ. Engrg., Univ. of California, Berkeley, Calif
2. Staff Engr., Dames & Moore, Park Ridge, Ill.; formerly Asst. Research Engr., Geotech. Engrg., Univ. of California, Berkeley, Calif