  Godfrey was evidently a great lover of books, and among the surviving 37 manuscripts he left to the Sorbonne is a valuable “Student Notebook” (Paris: Bibl. Nat. lat. 16.297) which he himself compiled during his student days at Paris, and into which he entered many writings in his own hand.  While it was not completed by 1274 or earlier as was previously proposed, the most recent research indicates that it was formed by Godfrey almost entirely between the end of 1276 and 1278, with the exception of the final small portion copied at the earliest between 1278–1280 and at the latest between 1280–1281 (Aiello-Wielockx, 2008, 167). It reflects his interests in the 1270s during his time as a theology student at Paris and includes works by Thomas Aquinas, Siger of Brabant, Boethius of Dacia, other anonymous Questions on various works of Aristotle which are clearly by some Master(s) of Arts of the time, still others by Giles of Rome, some extracts from Albert the Great and from Henry of Ghent, as well as other purely theological writings (Duin, 1959; Wippel, 2001, 360–67; and now an exhaustive study by Aiello-Wielockx, 2008). An anonymous set of Questions on Bks. I–II of Aristotle’s De anima contained in this same Student Notebook has recently been assigned to Boethius of Dacia and edited (Wielockx, 2009). Godfrey’s interest in the writings of Radical Aristotelian Arts Masters at Paris in the 1260s and 1270s is also indicated by other works of Arts Masters included in additional manuscripts in his library (Bibl. Nat. lat. 15.819, 16.096). Also noteworthy is the inclusion in his Student Notebook of one of the oldest and most reliable copies of Thomas Aquinas’s controversial De aeternitate mundi, which itself dates probably from 1271.