Karen Hunger Parshall is professor of history and mathematics at the University of Virginia. She is the author of James Joseph Sylvester: Jewish Mathematician in a Victorian World (2006), Taming the Unknown: A History of Algebra from Antiquity to the Early Twentieth Century (with Victor J. Katz, 2014), and Experiencing Nature: Proceedings of a Conference in Honor of Allen G. Debus (coedited with Paul H. Theerman, 1997).
Michael T. Walton was the author of Genesis and the Chemical Philosophy: True Christian Science in the Sixteenth and Seventeenth Centuries (2011); and Anthonius Margaritha and the Jewish Faith: Jewish Life and Conversion in Sixteenth Century Germany (2012).
Bruce T. Moran is professor of history at the University of Nevada, Reno. Among many articles and books are Distilling Knowledge: Alchemy, Chemistry, and the Scientific Revolution (2005) and Andreas Libavius and the Transformation of Alchemy: Separating Chemical Cultures with Polemical Fire (2007).