1. Asst. Prof., Dept. of Civil Engrg., Technion, Haifa, Israel; formerly, Asst. Prof., Dept. Civil Engrg., Massachusetts Inst. of Tech., Cambridge, Mass
2. Civ. Engr., Study Group, Atlantic Tidal Power Programmmg Board, Hallfax, N. S., Canada; formerly Head, Computer Applications, Chas. A. Maguire and Assoc., Boston, Mass