this is what must be said,” is his constant burden. In this respect too Hilary affords a noble pattern not only to the Christian theologian but to the student of theology, however humble. It has been an unfortunate necessity that use has had to be made almost throughout of an untrustworthy text. The critical edition which is being produced for the Corpus VII Scriptorum Eccelesiasticorum Latinorum of the Vienna Academy does not as yet extend beyond the Commentary on the Psalms (S. Hilarii Ep. Pictaviensis Tract. super Psalmos, recens. A. Zingerle, Vindobonae, mdcccxci). This is the more to be regretted as the mss. of Hilary are rather exceptionally early and good. Most of these were used in the Benedictine edition, but not so systematically or thoroughly as a modern standard requires. It is im- possible to speak decidedly about the text of Hilary until the Vienna edition is completed. The treatise De Synodis was translated by the Rev. L. Pullan, and has been in print for some time. The Introduction and the translation of De Trinitate i.–vii. are the work of Mr. Watson. Books viii. and xii. were undertaken Mr. E. N. Bennett, Fellow of Hertford, and Books ix.–xi. by the Rev. S. C. Gayford, late Scholar of Exeter. The specimens of the Com- mentary on the Psalms were translated by the Rev. H. F. Stewart, Vice-Principal of the Theological College, Salisbury, who has also made himself responsible for the double Index. A word of special thanks is due to the printers, Messrs. Parker, who have carried out their part of the work with conspicuous intelligence and with the most conscientious care. W. Sanday Christ Church,   Oxford,      July 12, 1898. 5 Preface.