Reference edition:

Grammatici Latini, VII. Scriptores de orthographia. Terentius Scaurus, Vellius Longus etc., ex recensione H. Keilii, Hildesheim 1961, 320-362 (reprografischer Nachdruck der Ausgabe Leipzig 1880).

This work is only preserved intact in the codices Bernensis 336 (B) and Monacensis 6434 (M), both of the 9^th c. AD; the first of these also records the title by which we normally refer to it today: Audacis de Scauri et Palladii libris excerpta per interrogationem et responsionem. As its name indicates, the form of this grammatical text is that of question and response. After introducing a few basic concepts, the Ars treats accentuation, metrics (esp. hexameter), the elements of grammar, and solecisms. The chapter on nouns is especially important to understand how this work is an epitome that draws on diverse sources: while its opening lines refer to qualitas, genus, numerus, figura, and casus, only the last of these is discussed in detail; later, however, in the chapter dealing with conjugation, the author states explicitly that the concept of figura was already treated in the chapter dedicated to nouns.  The grammars of Scaurus and Palladius to which the title refers are not expressly mentioned elsewhere: the first part of the work, which has much in common with Victorinus’ Ars, nevertheless seems to go back to the grammaticus Quintus Terentius Scaurus; the second, which shares certain features with Probus’ Instituta artium, is attributed to an otherwise unknown Palladius (Keil).  [S. Mollea; tr. C. L. Caterine].