whereas the doctrine of Zarathrustra required that the corpses should be exposed. As such was the attitude of the house of the Sassanids, we may believe the books of the Parsees that Ardeshir eagerly took in hand the revival of the true faith, and that he was assisted in this by competent Magians; by Arda Viraf, according to the book of the Exodus and of Arda Viraf (p. 50); according to the Dinkart, by the Herbedh Tosar. The book of Arda Viraf relates at length how he fell asleep in the assembly of priests before Ardeshir, and his soul was carried by the god Çraosha through heaven and hell. And when the Dinkart represents a standard of true religion as being set up under Ardeshir, there is no reason to doubt the statement. After the reign of Ardeshir, we are told in the Book of the Exodus, the true religion was again suspended, or, as the Book of Arda Viraf tells us, a schism arose. The cause of this division is sufficiently known from other sources. In the reign of Shapur I. (241-272 A.D.) a native of Ctesiphon, of the name of Mani, came forward with a new doctrine which attempted to mingle Chaldæan, Jewish, and Christian elements in the faith of Iran, and to resolve it into abstractions. He found numerous adherents.[106] Varahran II. (276-293 A.D.) allowed him to dispute with the Magians, and then put him to death. Under Shapur II., who succeeded his father Auharmazdi II. as a posthumous child (309-379 A.D.), in order to check Manicheism and the advance of Christianity, it was necessary to go back to the principles of the old faith, and to invigorate these by the collection and establishment of the sacred scriptures. We may therefore have the fullest confidence in accepting from these three books of the Parsees the facts that Shapur "made the sacred faith to be famous;" that Aderbat, whose work under Shapur is confirmed by Hamza of Isfahan, collected the scriptures, purified the sayings of Zarathrustra, and enumerated the chapters. It is on this redaction of the canon by Aderbat Mahresfant under Shapur II. that the list of the books and chapters rests, distinguishing what were originally in existence and what were then preserved. What was not discovered "after Alexander" means what was not discovered or not accepted at this redaction. Instead of the 815 chapters which the Avesta is said to have previously contained, the new canon amounted to only 348 chapters. That Aderbat was the founder of this canon is clear not only from the epithet which the books of the Parsees give him (Mahresfant, Old Bactrian Manthraçpenta, meaning "the sacred word,") but also from the confession of faith still in use among the Parsees: "I abide in the law which Zarathrustra taught to Vistaçpa, to Frashaostra, to Jamaçpa, and Çpentodata, which came in the succession of generations to Aderbat, who duly corrected and purified it."[107] It was shown above that the language of the sacred books thus again collected was that of Eastern Iran (p. 30).