Page 361, note. Omit all after: Council of Chalcedon in 451; changing comma to period. Page 402, line 19. For, Milcoe: read, Mileve. Page 579, line 24. Insert comma after: common faith. Page 594, line 22. For, will: read, wilt. Page 603, line 31. For, rivalries: read, rivalry. Page 627, line 28. For, days: read, days’. Page 697, line 1. For, ἀσπασμον: read ἀσπασμὸν. Page 705, col. 2, lines 29, 30. For, Ptolomæus: read, Ptolemæus. PREFACE. The value of the source-book has long been recognized in the teaching of general history. In ecclesiastical history quite as much use can be made of the same aid in instruction. It is hoped that the present book may supply a want increasingly felt by teachers employing modern methods in teaching ecclesiastical history. It has grown out of classroom work, and is addressed primarily to those who are teaching and studying the history of the Christian Church in universities and seminaries. But it is hoped that it may serve the constantly increasing number interested in the early history of Christianity. In the arrangement of the selected illustrative material, a chronological analysis and grouping of topics has been followed, according to the lines of treatment employed by K. Müller, F. Loofs, Von Schubert in his edition of Moeller’s text-book, and by Hergenröther to some extent. The whole history of ancient Christianity has accordingly been divided into comparatively brief periods and subdivided into chapters and sections. These divisions are connected and introduced by brief analyses and characterizations, with some indications of additional source material available in English. A bibliography originally prepared for each chapter and section has been omitted. When the practical question arose of either reducing the amount of source material to admit a bibliography, or of making the book too expensive for general use by students, the main purpose of the book determined the only way of avoiding two unsatisfactory solutions of the problem, and the bibliography has been omitted. In this there may be less loss than at first appears. The student of ecclesiastical history is fortunately provided with ample bibliographical material for the ancient Church in the universally available theological and other encyclopædias which have very recently appeared or are in course of publication, and in the recent works on patristics. Possibly the time has come when, in place of duplicating bibliographies, reliance in such matters upon the work of others may not be regarded as mortal sin against the ethics of scholarship. A list of works has been given in the General Bibliographical Note, which the student is expected to consult and to which the instructor should encourage him to go for further information and bibliographical material.