thought, about the seventh century, but was derived, it is claimed, from a more ancient work.5 The book entitled "Revelations of Ardai Viraf" exists in Pehlevi probably of the fourth century, according to Troyer,6 and is believed to have been originally written in the Avestan tongue, though this is extremely doubtful. It gives a detailed narrative of the scenery of heaven and hell, as seen by Ardai Viraf during a visit of a week which his soul leaving his body for that length of time paid to those regions. Many later and enlarged versions of this have appeared. One of them, dating from the sixteenth century, was translated into English by T. A. Pope and published in 1816. Sanscrit translations of several of the before named writings are also in existence. And several other comparatively recent works, scarcely needing mention here, although considered as somewhat authoritative by the modern followers of Zoroaster, are to be found in Guzeratee, the present dialect of the Indian Parsees. A full exposition of the Zoroastrian religion, with satisfactory proofs of its antiquity and documentary genuineness, is presented in the Preliminary Discourse and Notes to the Dabistan. This curious and entertaining work, a fund of strange and valuable lore, is an historico critical view of the principal religions of the world, especially of the Oriental sects, schools, and manners. It was composed in Persian, apparently by Mohsan Fani, about the year 1645. An English translation, with elaborate explanatory matter, by David Shea and Anthony Troyer, was published at London and at Paris in 1843.7