of Artakshatr, Shapuhar (241-272 A.D.), the king of kings, gave command that all writings on medicine or astronomy or other subjects in Hindostan, Rum, and other lands, should be collected, and again united with the Avesta, and that an exact copy should be deposited in the treasury of Shapikan. Lastly Atropat (Aderbat) in the reign of Shapuhar (Shapur II, 309-379 A.D.), the son of Auharmazdi, purified the sayings of Zarathrustra and enumerated the Nosks (chapters) of the sacred scriptures.[79] In the rivayats of the Parsees in India, _i.e._ in the collections of the sayings of the priests on their doctrine, we find an enumeration of these sections of the scriptures. At each book this list notes how many chapters were re-discovered "after Alexander." According to this enumeration the scriptures of Iran consisted of twenty-one books.[80] The first book contained the songs of praise to the supreme spirits in 33 chapters; the second (22 chapters) treated of good works; the third (22 chapters) of the sacred word; the fourth (21 chapters) of the gods; the fifth (22 chapters) of the earth, of water, of trees, of wild animals; the sixth (35 chapters) of the heavens and the stars; the seventh (22 chapters) of pure and impure kinds of food, and of the celebration of the great festivals; the eighth (50 chapters) of the kings and priests, of pure and impure animals; the ninth (60 chapters) of the laws according to which the kings and judges were to give sentence; the tenth (60 chapters) of virtue and wisdom; the eleventh (60 chapters) of the reign and conversion of king Vistaçpa; the twelfth taught agriculture in 22 chapters, the planting of trees, the duty of the priests and laity, and treated of the orders; the thirteenth (60 chapters) was occupied with the sacred sciences, the teachers and pupils, and the miracles which Zarathrustra worked; the fourteenth book (22 chapters) spoke of the life of men from birth to death; the fifteenth (17 chapters) contained songs of praise; the sixteenth (54 chapters) laid down rules for what was permitted and what was not; the seventeenth (64 chapters) contained the doctrines of medicine and astronomy; the eighteenth (65 chapters) the doctrine respecting animals and their treatment; the nineteenth (52 chapters) contained the civil and criminal law; the twentieth (22 chapters) the rubrics for the removal of impurity; the twenty-first gave in 30 chapters the history of creation.[81]