Three of the provinces, Zabdicene, Arzanene, and Carduene, are allowed on all sides. But instead of the other two, Peter (in Excerpt Leg. p. 30) inserts Rehimene and Sophene. I have preferred Ammianus (l. xxv. 7), because it might be proved that Sophene was never in the hands of the Persians, either before the reign of Diocletian or after that of Jovian. For want of correct maps, like those of M. d'.Anville, almost all the moderns, with Tillemont and Valesius at their head, have imagined that it was in respect to Persia, and not to Rome, that the five provinces were situate beyond the Tigris.