1. New York City College of Technology of the City University of New York, 300 Jay St., Brooklyn, New York 11201
2. Pennsylvania State University, College of Medicine, Hershey, Pennsylvania 17033
3. Deerfield Academy, Science Department, Deerfield, Massachusetts 01342
4. Brooklyn College, 2900 Bedford Ave., Brooklyn, New York 11210
5. Department of Biological Sciences, Hunter College of the City University of New York, New York, New York 10021
6. Occhiuti, Rohlicek, & Tsao, Cambridge, Massachusetts 02138