On Philo’s works, see Schürer, Gesch. des jüd. Volkes, II. p. 831 sqq. The best (though it leaves much to be desired) complete edition of Philo’s works is that of Mangey: 2 vols., folio, London, 1742; English translation of Philo’s works by Yonge, 4 vols., London, 1854–55. Upon Philo’s life, see chaps. 4–6, above. Eusebius, in his Præp. Evang., quotes extensively from Philo’s works and preserves some fragments of which we should otherwise be ignorant.