P. E. EASTERLING is Emeritus Regius Professor of Greek at the University of Cambridge. She founded (together with Ted Kenney) the Cambridge Greek and Latin Classics series, to which her Sophocles: Trachiniae (1982) and Oedipus at Colonus (in preparation) belong. Her extensive editorial activity includes The Cambridge History of Greek Literature (with Bernard Knox, 1985), The Cambridge Companion to Greek Tragedy (1997) and Greek and Roman Actors (with Edith Hall, 2002). FELIX BUDELMANN is Professor of Classics at the University of Groningen. EVELINE KRUMMEN is Professor of Classical Philology at the University of Graz.