Hermann Freiherr von Soden. Die wichtigsten Fragen im Leben Jesu. (The most important Questions about the Life of Jesus.) Vacation Lectures. Berlin, 1904. 111 pp.
Gustav Frenssen. Hilligenlei. Berlin, 1905, pp. 462-593: “Die Handschrift.”(“The Manuscript”—in which a Life of Jesus, written by one of the characters of the story, is given in full.)
Otto Pfleiderer. Das Urchristentum, seine Schriften und Lehren in geschichtlichem Zusammenhang beschrieben. (Primitive Christianity. Its Documents and Doctrines in their Historical Context.) 2nd ed. Berlin, 1902. Vol. i., 696 pp.
Die Entstehung des Urchristentums. (How Primitive Christianity arose.) Munich, 1905. 255 pp.
Albert Kalthoff. Das Christus-Problem. Grundlinien zu einer Sozialtheologie. (The Christ-problem. The Ground-plan of a Social Theology.) Leipzig, 1902. 87 pp.
Die Entstehung des Christentums. Neue Beiträge zum Christus-Problem. (How Christianity arose. New contributions to the Christ-problem.) Leipzig, 1904. 155 pp.
Eduard von Hartmann. Das Christentum des Neuen Testaments. (The Christianity of the New Testament.) 2nd revised edition of “Letters on the Christian Religion.” Sachsa-in-the-Harz, 1905. 311 pp.
De Jonge. Jeschua. Der klassische jüdische Mann. Zerstörung des kirchlichen, Enthüllung des jüdischen Jesus-Bildes. Berlin, 1904. 112 pp. (Jeshua. The Classical Jewish Man. In which the Jewish picture of Jesus is unveiled, and the ecclesiastical picture destroyed.)
Wolfgang Kirchbach. Was lehrte Jesus? Zwei Urevangelien. (What was the teaching of Jesus? Two Primitive Gospels.) Berlin, 1897. 248 pp. 2nd revised and greatly enlarged edition, 1902, 339 pp.
Albert Dulk. Der Irrgang des Lebens Jesu. In geschichtlicher Auffassung dargestellt. (The Error of the Life of Jesus. An Historical View.) 1st part, 1884, 395 pp.; 2nd part, 1885, 302 pp.