The Aldine Press published three volumes of Pontano's prose works in 1518-19; the one shown here is the middle volume. Included are treatises on the virtues of obedience, liberality, and splendor, as well as De sermone, a treatise on poetics, and several dialogues. One such dialogue, Charon, contains anti-clerical material sufficiently virulent that it is often mutilated or torn outright from the volume. BYU's copy, however, preserves Charon intact.