Rushbrooke, Synopticon, 1880; Wright, Synopsis of the Gospels in Greek, 3rd edition, 1906; Composition of the Four Gospels, 1890; Some New Testament Problems, 1898; H.J. Holtzmann, Die synopt. Evang., 1863; Weizsacker, Untersuch. uber die evang. Gesch., 2nd edition, 1901; Wernle, Die synopt. Frage, 1899; Loisy, Les ev. syn., 1908; Wellhausen, Einleitung in die drei ersten Evang., 1905; Blass, Origin and Char. of Our Gospels, English translation, xviii; Norton, Internal Evid. of the Genuineness of the Gospels, 1847; F.H. Woods, Stud. Bibl., II, 594; Palmer, Gospel Problems and Their Solution, 1899; J.A. Robinson, The Study of the Gospels, 1902; Gloag, Introduction to the Synoptic Gospels; Burton, Some Principles of Literary Criticism and Their Application to the Synoptic Problem, 1904; Stanton, as above, and in Hastings, Dictionary of the Bible (five volumes), II, 234 ff; Turner, "Chronology of New Testament," Hastings, Dictionary of the Bible (five volumes), I, 403 ff; J.J. Scott, The Making of the Gospels, 1905; Burkitt, Gospel History and Its Transmission, 1906; Salmon, Human Element in the Gospels, 1907; Harnack, Gesch. der altchristl. Lit., I, 1893; II, 2nd edition, 1904; Beitrage zur Einleitung in das New Testament, 4 volumes, translated in "Crown Theol. Lib.," Luke the Physician, 1907; The Sayings of Jesus, 1908; The Ac of the Apostles, 1909; The Date of the Ac and of the Synoptic Gospels, 1911; Montefiore, The Synoptic Gospels, 1909; Hawkins, Horae Synopticae, 2nd edition, 1909; Denney, Jesus and the Gospel; Cambridge Biblical Essays, edition by Swete, 1909; Oxford Studies in the Syn. Problem, edition by Sanday, 1911; Salmond, Hastings, Dictionary of the Bible (five volumes), III, 248 ff; Maclean, Hastings, Dictionary of Christ and the Gospels, II, 120 f; Petrie, Growth of Gospels Shown by Structural Criticism, 1910; Buckley, Introduction to Synoptic Problem, 1912.