1. Hexaëmeron. This treatise, expounding the literal and moral sense of the work of the six days of creation [Gen. i. 1–26], consists of nine addresses to the people of Milan, delivered in the last week of Lent, probably a.d. 389, and is now divided into six books. The writer has studied Origen, but followed rather the teaching of St. Hippolytus and Basil the Great, though he expresses himself often quite in a different sense.