1. Physics Department, Brooklyn College of CUNY, 2900 Bedford Avenue, Brooklyn, New York 11210, Physics Department, Hunter College of CUNY, 695 Park Avenue, New York, New York 10021, Chemical Engineering Department, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, and Physics Department, U.S. Naval Academy, 566 Brownson Road, Annapolis, Maryland 21402