1. Engr., State Electricity Comm., Melbourne, Australia; formerly, Research Assoc., Fritz Engrg. Lab., Lehigh Univ., Bethlehem, Pa.
2. Prof. of Civ. Engrg., Washington Univ., St. Louis, Mo.; formerly, Research Assoc., Prof., Fritz Engrg. Lab., Lehigh Univ., Bethlehem, Pa.