Michael of Ephesus' commentary on the Aristotelian tract De partibus animalium exists in two editions, the older by an anonymous scholar, and the second Edition B by Georgios Pachymeres. Both update the commentary as a whole and supplement the missing commentary on Book II. Edition B was edited under the name of Michael. This volume includes both editions, newly revised with an analysis of their textual history.

Eleni Pappa, Freie Universität Berlin, Germany.