03903. THE DEVELOPMENT OF ISLAM: SHI'A AND SUFI. Very good study of the development of factionalism in the Moslem religion, focusing on the political history of Mohammed's successors that led to the birth of Shi'ite Islam, and the popular faith that found expression in the Sufi movement; other sects also mentioned. Knowledgeable and well written. 9p., 12f., 3b.