Of late the Alogi (so-called) have been the subject of renewed discussion in Germany. The topic is handled by Dr. A. Harnack in his able and elaborate article on “Monarchianism” in Herzogand Plitt's Encyclopædia (vol. x.), and in his “Dogmengeschichte” (second edition, 1888). It is considered at length in the first half of the first volume of Zahn's “History of the New Testament Canon” (1888). This last publication has called out a polemical review from Harnack, in which the Alogi forms one of the prominent themes. In Zahn's brief pamphlet in reply to Harnack, however, this particular topic is not taken up. The subject, as all are aware, is interesting as a branch of the history of Christology in the second century. It is especially important now for its connection with the debate respecting the authorship of the Fourth Gospel.