The twelfth Fargard treats of various funeral ceremonies, and repeats a number of injunctions relative to the cleansing of places, of clothes and other articles, polluted by lifeless bodies. It concludes with elaborate warnings against a two-footed _dev_, called Ashmog. The thirteenth and fourteenth run riot in praise of the noble qualities of dogs, and severe in their rebuke of the “superior animals” who ill-use them. The fifteenth reads like a Commination Service, in its denunciation of certain crimes which can never be undone even by the profoundest penitential offices, and are punished by Ahura-Mazda with eternal condemnation. The seventeenth, like the sixteenth, is tediously liturgical, and discusses such minutiæ as the arrangement of the hair of the head, the extraction of bad or gray hairs, and the cutting of nails. If these operations are performed without certain prescribed ceremonies, the devs come upon earth, and parasitical organisms are produced to the great discomfort and injury of man. The eighteenth lays down the distinctions which should characterise an _Athrava_, or priest. He must wear the _padan_, a mouth-cover, of two fingers’ breadth; must carry an instrument for disposing of parasitical insects; devote his nights to study, keep alive the sacred fire, and succour the distressed. The nineteenth chapter recounts the perils to which Zarathustra was exposed, when he had left the south on his mission, from the murderous assaults of Ahriman and his host, who hastened up from the north; the north, to an inhabitant of the warm sunny south, naturally appearing the fit home and haunt of the Spirit of Evil. The twentieth is devoted to the praise of Taneslied, who is represented as having swept away disease, death, bloodshed, war, evil-doers, falsehood, and all kinds of wickedness. The twenty-first enjoins the salutations to be paid to the sacred Bull, and extols some of its illustrious qualities. Finally, the twenty-second narrates the mission of Zarathustra, and describes the evil he will dispel through the influence of the Word; Ahura-Mazda having ordered him to establish his worship in the region called Airya-Mava, or Irman, so that it may become bright, pure, and happy as the abode of Ahura-Mazda himself, free from sin, and, consequently, free from sorrow and suffering.