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 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 impossible to speak decidedly about the text of Hilary until the Vienna edition is completed.