Socrates Scholasticus, Historia Ecclesiastica 7.15, in A.C. Zenos, ed., vol. 2 of The Nicene and Post-Nicene Fathers, 2d ser., ed. Philip Schaff and Henry Wace (Grand Rapids: Eerdmans, 1957), p. 160. See also Edward A. Parsons, The Alexandrian Library, Glory of the Hellenic World: Its Rise, Antiquities, and Destructions (London: Cleaver-Hume, 1952), p. 356.