ing down water on the earth, he is confronted by the demon Apaosha, who has assumed the form of a dark horse.[1] A severe struggle ensues, lasting for three days and three nights. Apaosha comes off first as the victor in the combat and puts the genius of rain to flight.[2] Tishtrya bemoans his lot and complains before Ahura Mazda that mankind had neglected to sacrifice unto him. If only he were strengthened by their offerings, he would carry with himself on the battlefield the vigour of ten horses, ten camels, ten bulls, ten mountains, and ten rivers.[3] Ahura Mazda, thereupon, offers a sacrifice to the unfortunate angel and gives him the desired strength.[4] Girt with this added power, Tishtrya now boldly marches against his rival, and engages in combat with him, until, to the joy of the waters, and plants, and lands, and fields, Tishtrya comes out triumphant and Apaosha is defeated.[5]
Spenjaghri
Apaosha's associate. The name of this demon occurs but once in the Avesta, in Vd. 19. 40, where Vazishta, the fire of lightning, is spoken of as smiting Spenjaghri. We learn from the Pahlavi works that this fiend works in concert with Apaosha to hinder Tishtrya from pouring the rain upon the earth.
Azi
Demon of avarice. On the physical side this demon strives to extinguish the household fire, but he is repelled by Sraosha three times during the night.[6] On the moral side he is the evil genius of avarice.[7] Sacrifices are offered to the waters and trees to enable the faithful to withstand him.[8]
Vayu
A collaborator of Astovidhotu. We have already seen the good part of Vayu personified as a Yazata. The other part belongs to the realm of wickedness and is impersonated by a demon of the same name. He accompanies the demon Astovi-
