1. US Fish and Wildlife Service, Basking Ridge, NJ 07920.
2. US Fish and Wildlife Service, Sud-bury, MA 01776.
3. Savannah River Ecology Laboratory, University of Georgia, Aiken, SC 29802.
4. Bristol County Agricultural High School, Dighton, MA 02715.
5. Oxbow Associates, Inc., Boxborough, MA 01720.
6. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602.