1. Department
of Chemistry, Virginia Military Institute, Lexington, Virginia 24450, United States
2. Retired from Queen Victoria Museum and Art Gallery, living in West Uverstone, Tasmania 7315, Australia
3. Department
of Biology, Hampden-Sydney College, Hampden-Sydney, Virginia 23943, United States
4. Retired from NIDA, NIH, Bethesda, Maryland 20892, United States
5. Department
of Biology, John Carroll University, University Heights, Ohio 44118, United States