Jutta Schickore is Ruth N. Halls Professor in the Department of History and Philosophy of Science and Medicine at Indiana University. Her research has dealt with philosophical and scientific debates about scientific methods in past and present, particularly debates about (non)replicability, error, and negative results, historical and philosophical aspects of microscopy; and the relation between history and philosophy of science. She held a Sir Henry Wellcome Research Fellowship at the at the Department of History and Philosophy of Science in Cambridge, UK, as well as postdoctoral fellowships at the Dibner Institute for the History of Science and Technology at M.I.T. (Cambridge, Mass.) and the Max Planck Institute for the History of Science (Berlin, Germany). She has been a member of the Institute for Advanced Study (Princeton) and fellow at the National Humanities Center (Research Triangle Park). William R. Newman is Distinguished Professor and Ruth N. Halls Professor in the Department of History and Philosophy of Science and Medicine at Indiana University. Most of Newman’s work in the History of Science has been devoted to alchemy and "chymistry," the art-nature debate, and matter theories, particularly atomism. Newman is also General Editor of the Chymistry of Isaac Newton, an online resource combining digital editions of Newton’s alchemical writings with multimedia replications of Newton’s alchemical experiments (www.chymistry.org). Newman is on the editorial boards of Archimedes, Early Science and Medicine, and HOPOS.  He has been a Guggenheim fellow, member at the Institute for Advanced Study, and fellow at the National Humanities Center.