Peter Marshall has done what all those concerned with manuscripts dream of doing: he has turned up a substantial lost portion of an ancient text. His discovery is related, with great modesty, in an article in Manuscripta 37 (1993), 3–20, where he prints for the first time Tiberius Claudius Donatus' commentary on Virgil, Aeneid 6.1–157, edited from a gathering written in the sixteenth century and now bound into Vaticanus Latinus 8222 ff. 2r–9v. We offer here some emendations to the text he prints; we are grateful to Prof. M. D. Reeve and Dr S. J. Heyworth for their suggestions, which we have incorporated in what follows. The bold figures represent the lines of Aeneid 6.