Eary Zoroastrianism; the origins, the prophet, the magi; lectures, delivered at Oxford and in London, February to May 1912, on the religious conditions and concepts, prevailing in Persia before Zarathustra, on the praphetic activity of Zarathustra and his doctrines, also compared to those of Isael and in Christianity, and on the religious writings of the Persians on Parsism, the Magi and the Fravashis, with critical notes references, selected texts translated and annotated, and three indexes