This edition of Zeraḥyah's Hebrew translation of De Anima, Aristotle's monograph on the soul, is of major importance for the history of transmission of Aristotle's text in the Middle Ages. Zeraḥyah's translation is based on the same lost Arabic translation as Averroes' long commentary, and the solution which it provides for the question of the authorship of this lost Arabic translation thus also holds good for Averroes' text.