3, which has got into the scholia upon the Odyssey xviii.
They are divided into Scholia (o-mua)vet, short annotations, mostly grammatical), Homilies (edifying expositions grounded on exegesis), and Commentaries (r6pot).
The chief ancient authorities for his life are Horace (Odes with Scholia), Dio Cassius, Tacitus (Annals), Suetonius (Augustus).
The literature of succeeding centuries furnishes only isolated references; the more important are found in the scholia on Aristophanes, the lexicons of Hesychius, Photius and others, and the Etymologicum Magnum.
His interest was not, however, confined to theological literature; he annotated the margins of his classical texts with numerous scholia (many of which are preserved), and had several MSS.