Joyce Chaplin is Professor of History at Harvard University. She received her M.A. and Ph.D. from the Johns Hopkins University, and works on science, race, cultural encounters and environmental history in colonial America. Professor Chaplin has written An Anxious Pursuit: Agricultural Innovation and Modernity in the Lower South, 1730-1815 (1993) and Subject Matter: Technology, the Body, and Science on the Anglo-American Frontier, 1500-1676 (2001). She is currently writing, "Franklin's Gulf Stream: Science and Circulation in the Atlantic," about science in the eighteenth-century British colonies.