11. Gellius (12.3) speaks of " Valgius Rufus " and Charisius (p. 84, ed. Putsch.) of " Valgius " as the author of some grammatical investigations called Res per epistolam quaesitae. They extended to two books at least, and probably were something of the same kind as the Epistolicae Quaestiones of Varro (Gel. 14.7).
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890