Abstract
It has long been known that two medieval scholiasts, one of them called John of Sicily, the other anonymous, commenting on a passage of Hermogenes', ascribe what looks like a passage of the de Sublimitate to ‘Longinus’. On the assumption, however, that the ‘Longinus’ referred to must be Cassius Longinus, the third-century rhetorician, scholars have tended to minimize the vweight of the evidence and attempted to explain it away. For it is now established that the de Sublimitate must date from the first century A.D. Yet, apart from the identity of ‘Longinus’, the evidence of the scholiasts looks clear and specific.