1. Department of Chemistry College of the Atlantic 105 Eden Street Bar Harbor Maine 04609 USA
2. Center for Nonlinear Phenomena and Complex Systems Université libre de Bruxelles CP 231 1050 Ixelles Belgium
3. Institute for Comparative Genomics & Richard Gilder Graduate School Université libre de Bruxelles American Museum of Natural History 79th Street at Central Park West. New York NY 10024-5192 USA
4. Department of Chemistry Colby College 4000 Mayflower Hill Drive Waterville Maine 04901 USA