Introduction / Ibn Warraq -- Koran / Theodor Noldeke -- `Uthman and the recension of the Koran / Leone Caetani -- Three ancient Korans / Alphonse Mingana -- Transmission of the Koran / Alphonse Mingana -- Materials for the history of the text of the Koran / Arthur Jeffery -- Progress in the study of the Koran text / Arthur Jeffery -- Variant text of the Fatiha / Arthur Jeffery -- Abu `Ubaid on the verses missing from the Koran / Arthur Jeffery -- Textual variations of the Koran / David Margoliouth -- What did Muhammad borrow from Judaism? / Abraham Geiger -- Sources of Islam / W. St. Clair-Tisdall -- Jewish foundation of Islam / Charles Cutler Torrey -- Literary analysis of Koran, tafsir, and sira : the methodologies of John Wansbrough / Andrew Rippin.