Philip J. van der Eijk is Professor of Greek at the University of Newcastle upon Tyne. He has published widely on ancient philosophy, medicine and science, comparative literature and patristics. He is the author of Aristoteles. De insomniis. De divinatione per somnum (Berlin: Akademie Verlag, 1994) and of Diocles of Carystus. A Collection of the Fragments with Translation and Commentary (2 Vols., Leiden: Brill, 2000-1). He has edited and co-authored Ancient Histories of Medicine. Essays in Medical Doxography and Historiography in Classical Antiquity (Leiden: Brill, 1999) and co-edited Ancient