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AUTHOR INFORMATION

SUZANNE QUILLEN LOMAX received her Ph.D. in organic chemistry in 1984 from the University of Maryland, working with Patrick Mariano exploring the photochemistry of iminium salts. She then went to Northwestern University, where she performed postdoctoral research with Frederick Lewis examining intermolecular photoaddition reactions. Before beginning her work at the National Gallery, Dr. Lomax worked briefly in the Office of Toxic Substances of the Environmental Protection Agency. She has been at the National Gallery Science Department since February 1986, investigating the identification and aging behavior of artists' materials. Address: National Gallery of Art, Washington, D.C. 20565.

SARAH L. FISHER graduated from Wellesley College with a B.A. in art history in 1967. The majority of her conservation training was at the Swiss Institute for Art Research in Zurich under Dr. Thomas Brachert, with additional training in other Swiss cantons and Brussels, Florence, and Amsterdam. Following jobs at the Swiss Institute, the Intermuseum Laboratory in Oberlin, Ohio, and the Balboa Art Conservation Institute in San Diego, she has worked at the National Gallery of Art in Washington, D.C., since 1981, where she is now head of painting conservation. She has published on Rubens' and Watteau's painting methods and lectured on the materials and techniques of many Old Master painters. Address: National Gallery of Art, Washington, D.C. 20565.