(ii)  De Spiritu Sancto.  To the illustration and elucidation of this work I have little to add to what is furnished, however inadequately, by the translation and notes in the following pages.  The famous treatise of St. Basil was one of several put out about the same time by the champions of the Catholic cause.  Amphilochius, to whom it was addressed, was the author of a work which Jerome describes (De Vir. Ill., cxxxiii.) as arguing that He is God Almighty, and to be worshipped.  The Ancoratus of Epiphanius was issued in 373 in support of the same doctrine.  At about the same time Didymus, the blind master of the catechetical school at Alexandria, wrote a treatise which is extant in St. Jerome’s Latin; and of which the work of St. Ambrose, composed in 381, for the Emperor Gratian, is “to a considerable extent an echo.” Swete, Doctrine of the Holy Spirit, p. 71, who further notes:  “St. Jerome is severe upon St. Ambrose for copying Didymus, and says that the Archbishop of Milan had produced “ex Græcis bonis Latina non bona.’  The work of the Latin Father is, however, by no means a mere copy; and other writers besides Didymus are laid under contribution in the argument; e.g. St. Basil and perhaps St. Athanasius.”