Church and Gnosis: A Study of Christian Thought and Speculation in the Second Century

The Religion of the Manichees: Donnellan Lectures for 1924

Two Lectures on the Gospels

Evangelion Da-Mepharreshe: Volume 1

Jewish and Christian Apocalypses: Schweich Lectures, 1913

The Earliest Sources for the Life of Jesus

Christian Beginnings: Three Lectures

The Gospel History and Its Transmission

The Old Latin and the Itala: with an Appendix containing the Text of the S. Gallen Palimpsest of Jeremiah

S. Ephraim's Quotations from the Gospel

The Four Gospels in Syriac: Transcribed from the Sinaitic Palimpsest

Criticism of the New Testament: St. Margaret's Lectures, 1902