About the author ALLEN J. BARD is Norman Hackerman-Welch Regents Chair in Chemistry at the University of Texas at Austin, where he has been a faculty member since 1958. Professor Bard is the recipient of more than twenty academic awards, most recently the Luigi Galvani Medal of the Societa Chimica Italiana, 1992; the G. M. Kosolapoff Award of the American Chemical Society, 1992; and the Award for Outstanding Achievement in the Fields of Analytical Chemistry of the Eastern Analytical Symposium, 1990. A frequent lecturer at major universities throughout the United States and Canada, and a member of numerous professional and academic organizations, Professor Bard is Editor in Chief of the Journal of the American Chemical Society and served as president of the International Union of Pure and Applied Chemistry from 1991 to 1993. He received his PhD in electroanalytical chemistry from Harvard University in 1958.