Notes on Contributors

Ursula Klein is senior scientist at the Max Planck Institute for the History of Science in Berlin. She is the author of Experiments, Models, Paper Tools: Cultures of Organic Chemistry in the Nineteenth Century (2003), and editor of Tools and Modes of Representation in the Laboratory Sciences (2001). Her recent research is on the history of experimentation and technoscience in the eighteenth- and early nineteenth centuries.

Xiang Chen is Professor of Philosophy at California Lutheran University. He is the author of a series of articles on event concepts, including "Why did John Herschel fail to understand polarization? The differences between object and event concepts" (2003). He is completing a book manuscript tentatively entitled, From Objects to Processes: What Theories of Scientific Revolutions Are Missing?

Bernard R. Goldstein is University Professor Emeritus at the University of Pittsburgh. He has published on a wide range of topics in the history of astronomy from the Babylonians to Kepler. Currently he is engaged in a joint project with Giora Hon on symmetry as a scientific concept in the nineteenth and twentieth centuries.

Giora Hon teaches history and philosophy of science in the Department of Philosophy, University of Haifa, Israel. He majored in physics as an undergraduate at Tel-Aviv University and obtained his Ph.D. in History and Philosophy of Science from the University of London with a dissertation on the concept of experimental error. He has published widely on historical and philosophical aspects of experimentation, focusing on the problem of error, including: "Putting Error to (Historical) Work: Error as a Tell- tale in the Studies of Kepler and Galileo," (2004).

Jeff Horn is Assistant Professor of History at Manhattan College. He is the author of "Qui parle pour la nation?" Les élections et les élus de la Champagne méridionale, 1765–1830,(2004)and co-convener with Leonard N. Rosenband and Merritt Roe Smith ofReconceptualizing the Industrial Revolution, an international conference to be held at the Dibner Institute for the History of Science and Technology at the Massachusetts Institute of Technology in April 2005. His manuscript The Path Not Taken: French Industrialization in the Age of Revolution, 1750–1830 is currently under consideration by an academic press.