Preface.

 Prolegomena.

 The Life of Eusebius.

 Chapter I

 §2.  Eusebius’ Birth and Training. His Life in Cæsarea until the Outbreak of the Persecution. 

 §3.  The Persecution of Diocletian. 

 §4.  Eusebius’ Accession to the Bishopric of Cæsarea. 

 §5.  The Outbreak of the Arian Controversy. The Attitude of Eusebius  .

 §6.  The Council of Nicæa  .

 §7.  Continuance of the Arian Controversy. Eusebius’ Relations to the Two Parties. 

 §8.  Eusebius and Marcellus  .

 §9.  The Death of Eusebius. 

 The Writings of Eusebius.

 Chapter II

 §2.  Catalogue of his Works  .

 Eusebius' Church History.

 Chapter III

 §2.  The Author’s Design  .

 §3.  Eusebius as a Historian. The Merits and Defects of his History  .

 §4.  Editions and Versions  .

 §5.  Literature  .

  Testimonies of the Ancients in Favor of Eusebius. 

 Testimonies of the Ancients Against Eusebius.

 Book I

 The Church History of Eusebius.

 Chapter II.—  Summary View of the Pre-existence and Divinity of Our Saviour and Lord Jesus Christ. 

 Chapter III.—  The Name Jesus and also the Name Christ were known from the Beginning, and were honored by the Inspired Prophets. 

 Chapter IV.—  The Religion Proclaimed by Him to All Nations Was Neither New Nor Strange. 

 Chapter V.—  The Time of his Appearance among Men. 

 Chapter VI.—  About the Time of Christ, in accordance with Prophecy, the Rulers who had governed the Jewish Nation in Regular Succession from the Days

 Chapter VII.—  The Alleged Discrepancy in the Gospels in regard to the Genealogy of Christ. 

 Chapter VIII.—  The Cruelty of Herod toward the Infants, and the Manner of his Death. 

 Chapter IX.—  The Times of Pilate. 

 Chapter X.—  The High Priests of the Jews under whom Christ taught. 

 Chapter XI.—  Testimonies in Regard to John the Baptist and Christ. 

 Chapter XII.—  The Disciples of our Saviour. 

 Chapter XIII.—  Narrative concerning the Prince of the Edessenes. 

 Book II

 Book II.

 Chapter I.—  The Course pursued by the Apostles after the Ascension of Christ. 

 Chapter II.—  How Tiberius was affected when informed by Pilate concerning Christ. 

 Chapter III.—  The Doctrine of Christ soon spread throughout All the World. 

 Chapter IV.—  After the Death of Tiberius, Caius appointed Agrippa King of the Jews, having punished Herod with Perpetual Exile. 

 Chapter V.—  Philo’s Embassy to Caius in Behalf of the Jews. 

 Chapter VI.—  The Misfortunes which overwhelmed the Jews after their Presumption against Christ. 

 Chapter VII.—  Pilate’s Suicide. 

 Chapter VIII.—  The Famine which took Place in the Reign of Claudius. 

 Chapter IX.—  The Martyrdom of James the Apostle. 

 Chapter X.—  Agrippa, who was also called Herod, having persecuted the Apostles, immediately experienced the Divine Vengeance. 

 Chapter XI.—  The Impostor Theudas and his Followers. 

 Chapter XII.—  Helen, the Queen of the Osrhœnians. 

 Chapter XIII.—  Simon Magus. 

 Chapter XIV.—  The Preaching of the Apostle Peter in Rome. 

 Chapter XV.—  The Gospel according to Mark. 

 Chapter XVI.—  Mark first proclaimed Christianity to the Inhabitants of Egypt. 

 Chapter XVII.—  Philo’s Account of the Ascetics of Egypt. 

 Chapter XVIII.—  The Works of Philo   that have come down to us. 

 Chapter XIX.—  The Calamity which befell the Jews in Jerusalem on the Day of the Passover. 

 Chapter XX.—  The Events which took Place in Jerusalem during the Reign of Nero. 

 Chapter XXI.—  The Egyptian, who is mentioned also in the Acts of the Apostles. 

 Chapter XXII.—  Paul having been sent bound from Judea to Rome, made his Defense, and was acquitted of every Charge. 

 Chapter XXIII.—  The Martyrdom of James, who was called the Brother of the Lord. 

 Chapter XXIV.—  Annianus the First Bishop of the Church of Alexandria after Mark. 

 Chapter XXV.—  The Persecution under Nero in which Paul and Peter were honored at Rome with Martyrdom in Behalf of Religion. 

 Chapter XXVI.—  The Jews, afflicted with Innumerable Evils, commenced the Last War Against the Romans. 

 Book III

 Book III.

 Chapter II.—  The First Ruler of the Church of Rome. 

 Chapter III.—  The Epistles of the Apostles. 

 Chapter IV.—  The First Successors of the Apostles. 

 Chapter V.—  The Last Siege of the Jews after Christ. 

 Chapter VI.—  The Famine which oppressed them. 

 Chapter VII.—  The Predictions of Christ. 

 Chapter VIII.—  The Signs which preceded the War. 

 Chapter IX.—  Josephus and the Works which he has left. 

 Chapter X.—  The Manner in which Josephus mentions the Divine Books. 

 Chapter XI.—  Symeon rules the Church of Jerusalem after James. 

 Chapter XII.—  Vespasian commands the Descendants of David to be sought. 

 Chapter XIII.—  Anencletus, the Second Bishop of Rome. 

 Chapter XIV.—  Abilius, the Second Bishop of Alexandria. 

 Chapter XV.—  Clement, the Third Bishop of Rome. 

 Chapter XVI.—  The Epistle of Clement. 

 Chapter XVII.—  The Persecution under Domitian. 

 Chapter XVIII.—  The Apostle John and the Apocalypse. 

 Chapter XIX.—  Domitian commands the Descendants of David to be slain. 

 Chapter XX.—  The Relatives of our Saviour. 

 Chapter XXI.—  Cerdon becomes the Third Ruler of the Church of Alexandria. 

 Chapter XXII.—  Ignatius, the Second Bishop of Antioch. 

 Chapter XXIII.—  Narrative Concerning John the Apostle. 

 Chapter XXIV.—  The Order of the Gospels. 

 Chapter XXV.—  The Divine Scriptures that are accepted and those that are not. 

 Chapter XXVI.—  Menander the Sorcerer. 

 Chapter XXVII.—  The Heresy of the Ebionites. 

 Chapter XXVIII.—  Cerinthus the Heresiarch. 

 Chapter XXIX.—  Nicolaus and the Sect named after him. 

 Chapter XXX.—  The Apostles that were Married. 

 Chapter XXXI.—  The Death of John and Philip. 

 Chapter XXXII.—  Symeon, Bishop of Jerusalem, suffers Martyrdom. 

 Chapter XXXIII.—  Trajan forbids the Christians to be sought after. 

 Chapter XXXIV.—  Evarestus, the Fourth Bishop of the Church of Rome. 

 Chapter XXXV.—  Justus, the Third Bishop of Jerusalem. 

 Chapter XXXVI.—  Ignatius and His Epistles. 

 Chapter XXXVII.—  The Evangelists that were still Eminent at that Time. 

 Chapter XXXVIII.—  The Epistle of Clement and the Writings falsely ascribed to him. 

 Chapter XXXIX.—  The Writings of Papias. 

 Book IV

 Book IV.

 Chapter II.—  The Calamities of the Jews during Trajan’s Reign. 

 Chapter III.—  The Apologists that wrote in Defense of the Faith during the Reign of Adrian. 

 Chapter IV.—  The Bishops of Rome and of Alexandria under the Same Emperor  .

 Chapter V.—  The Bishops of Jerusalem from the Age of our Saviour to the Period under Consideration 

 Chapter VI.—  The Last Siege of the Jews under Adrian  .

 Chapter VII.—  The Persons that became at that Time Leaders of Knowledge falsely so-called  .

 Chapter VIII.—  Ecclesiastical Writers  .

 Chapter IX.—  The Epistle of Adrian, decreeing that we should not be punished without a Trial  .

 Chapter X.—  The Bishops of Rome and of Alexandria during the Reign of Antoninus  .

 Chapter XI.—  The Heresiarchs of that Age  .

 Chapter XII.—  The Apology of Justin addressed to Antoninus. 

 ChapterXIII.—  The Epistle of Antoninus to the Common Assembly of Asia in Regard to our Doctrine  .

 Chapter XIV.—  The Circumstances related of Polycarp, a Friend of the Apostles  .

 Chapter XV.—  Under Verus,   Polycarp with Others suffered Martyrdom at Smyrna 

 Chapter XVI.—  Justin the Philosopher preaches the Word of Christ in Rome and suffers Martyrdom. 

 Chapter XVII.—  The Martyrs whom Justin mentions in his Own Work. 

 Chapter XVIII.—  The Works of Justin which have come down to us. 

 Chapter XIX.—  The Rulers of the Churches of Rome and Alexandria during the Reign of Verus. 

 Chapter XX.—  The Rulers of the Church of Antioch. 

 Chapter XXI.—  The Ecclesiastical Writers that flourished in Those Days. 

 Chapter XXII.—  Hegesippus and the Events which he mentions. 

 Chapter XXIII.—  Dionysius, Bishop of Corinth, and the Epistles which he wrote. 

 Chapter XXIV.—  Theophilus Bishop of Antioch. 

 Chapter XXV.—  Philip and Modestus. 

 Chapter XXVI.—  Melito and the Circumstances which he records. 

 Chapter XXVII.—  Apolinarius, Bishop of the Church of Hierapolis. 

 Chapter XXVIII.—  Musanus and His Writings. 

 Chapter XXIX.—  The Heresy of Tatian. 

 Chapter XXX.—  Bardesanes the Syrian and his Extant Works. 

 Book V

 Book V.

 Chapter I.—  The Number of those who fought for Religion in Gaul Under Verus and the Nature of their Conflicts. 

 Chapter II.—  The Martyrs, beloved of God, kindly ministered unto those who fell in the Persecution. 

 Chapter III.—  The Vision which appeared in a Dream to the Witness Attalus. 

 Chapter IV.—  Irenæus commended by the Witnesses in a Letter. 

 Chapter V.—  God sent Rain from Heaven for Marcus Aurelius Cæsar in Answer to the Prayers of our People. 

 Chapter VI.—  Catalogue of the Bishops of Rome. 

 Chapter VII.—  Even down to those Times Miracles were performed by the Faithful. 

 Chapter VIII.—  The Statements of Irenæus in regard to the Divine Scriptures. 

 Chapter IX.—  The Bishops under Commodus. 

 Chapter X.—  Pantænus the Philosopher. 

 Chapter XI.—  Clement of Alexandria. 

 Chapter XII.—  The Bishops in Jerusalem. 

 Chapter XIII.—  Rhodo and his Account of the Dissension of Marcion. 

 Chapter XIV.—  The False Prophets of the Phrygians. 

 Chapter XV.—  The Schism of Blastus at Rome. 

 Chapter XVI.—  The Circumstances related of Montanus and his False Prophets. 

 Chapter XVII.—  Miltiades and His Works. 

 Chapter XVIII.—  The Manner in which Apollonius refuted the Phrygians, and the Persons   whom he Mentions. 

 Chapter XIX.—  Serapion on the Heresy of the Phrygians. 

 Chapter XX.—  The Writings of Irenæus against the Schismatics at Rome. 

 Chapter XXI.—  How Appolonius suffered Martyrdom at Rome. 

 Chapter XXII.—  The Bishops that were well known at this Time. 

 Chapter XXIII.—  The Question then agitated concerning the Passover. 

 Chapter XXIV.—  The Disagreement in Asia. 

 Chapter XXV.—  How All came to an Agreement respecting the Passover. 

 Chapter XXVI.—  The Elegant Works of Irenæus which have come down to us. 

 Chapter XXVII.—  The Works of Others that flourished at that Time. 

 Chapter XXVIII.—  Those who first advanced the Heresy of Artemon their Manner of Life, and how they dared to corrupt the Sacred Scriptures. 

 Book VI

 Book VI.

 Chapter II.—  The Training of Origen from Childhood. 

 Chapter III.—  While still very Young, he taught diligently the Word of Christ. 

 Chapter IV.—  The pupils of Origen that became Martyrs. 

 Chapter V.—  Potamiæna. 

 Chapter VI.—  Clement of Alexandria. 

 Chapter VII.—  The Writer, Judas. 

 Chapter VIII.—  Origen’s Daring Deed. 

 Chapter IX.—  The Miracles of Narcissus. 

 Chapter X.—  The Bishops of Jerusalem. 

 Chapter XI.—  Alexander. 

 Chapter XII.—  Serapion and his Extant Works. 

 Chapter XIII.—  The Writings of Clement. 

 Chapter XIV.—  The Scriptures mentioned by Him. 

 Chapter XV.—  Heraclas. 

 Chapter XVI.—  Origen’s Earnest Study of the Divine Scriptures. 

 Chapter XVII.—  The Translator Symmachus. 

 Chapter XVIII.—  Ambrose. 

 Chapter XIX.—  Circumstances Related of Origen. 

 Chapter XX.—  The Extant Works of the Writers of that Age. 

 Chapter XXI.—  The Bishops that were well known at that Time. 

 Chapter XXII.—  The Works of Hippolytus which have reached us. 

 Chapter XXIII.—  Origen’s Zeal and his Elevation to the Presbyterate. 

 Chapter XXIV.—  The Commentaries which he prepared at Alexandria. 

 Chapter XXV.—  His Review of the Canonical Scriptures. 

 Chapter XXVI.—  Heraclas becomes Bishop of Alexandria. 

 Chapter XXVII.—  How the Bishops regarded Origen. 

 Chapter XXVIII.—  The Persecution under Maximinus. 

 Chapter XXIX.—  Fabianus, who was wonderfully designated Bishop of Rome by God. 

 Chapter XXX.—  The Pupils of Origen. 

 Chapter XXXI.—  Africanus. 

 Chapter XXXII.—  The Commentaries which Origen composed in Cæsarea in Palestine. 

 Chapter XXXIII.—  The Error of Beryllus. 

 Chapter XXXIV.—  Philip Cæsar. 

 Chapter XXXV.—  Dionysius succeeds Heraclas in the Episcopate. 

 Chapter XXXVI.—  Other Works of Origen. 

 Chapter XXXVII.—  The Dissension of the Arabians. 

 Chapter XXXVIII.—  The Heresy of the Elkesites. 

 Chapter XXXIX.—  The Persecution under Decius, and the Sufferings of Origen. 

 Chapter XL.—  The Events which happened to Dionysius. 

 Chapter XLI.—  The Martyrs in Alexandria. 

 Chapter XLII.—  Others of whom Dionysius gives an Account. 

 Chapter XLIII.—  Novatus,   his Manner of Life and his Heresy. 

 Chapter XLIV.—  Dionysius’ Account of Serapion. 

 Chapter XLV.—  An Epistle of Dionysius to Novatus. 

 Chapter XLVI.—  Other Epistles of Dionysius. 

 Book VII

 Book VII.

 Chapter I.—  The Wickedness of Decius and Gallus. 

 Chapter II.—  The Bishops of Rome in those Times. 

 Chapter III.—  Cyprian, and the Bishops with him, first taught that it was necessary to purify by Baptism those converted from Heresy. 

 Chapter IV.—  The Epistles which Dionysius wrote on this Subject. 

 Chapter V.—  The Peace following the Persecution. 

 Chapter VI.—  The Heresy of Sabellius. 

 Chapter VII.—  The Abominable Error of the Heretics the Divine Vision of Dionysius and the Ecclesiastical Canon which he received. 

 Chapter VIII.—  The Heterodoxy of Novatus. 

 Chapter IX.—  The Ungodly Baptism of the Heretics. 

 Chapter X.—  Valerian and the Persecution under him. 

 Chapter XI.—  The Events which happened at this Time to Dionysius and those in Egypt. 

 Chapter XII.—  The Martyrs in Cæsarea in Palestine. 

 Chapter XIII.—  The Peace under Gallienus. 

 Chapter XIV.—  The Bishops that flourished at that Time. 

 Chapter XV.—  The Martyrdom of Marinus at Cæsarea. 

 Chapter XVI.—  Story in Regard to Astyrius. 

 Chapter XVII.—  The Signs at Paneas of the Great Might of our Saviour. 

 Chapter XVIII.—  The Statue which the Woman with an Issue of Blood erected. 

 Chapter XIX.—  The Episcopal Chair of James. 

 Chapter XX.—  The Festal Epistles of Dionysius, in which he also gives a Paschal Canon. 

 Chapter XXI.—  The Occurrences at Alexandria. 

 Chapter XXII.—  The Pestilence which came upon them. 

 Chapter XXIII.—  The Reign of Gallienus. 

 Chapter XXIV.—  Nepos and his Schism. 

 Chapter XXV.—  The Apocalypse of John. 

 Chapter XXVI.—  The Epistles of Dionysius. 

 Chapter XXVII.—  Paul of Samosata, and the Heresy introduced by him at Antioch. 

 Chapter XXVIII.—  The Illustrious Bishops of that Time. 

 Chapter XXIX.—  Paul, having been refuted by Malchion, a Presbyter from the Sophists, was excommunicated. 

 Chapter XXX.—  The Epistle of the Bishops against Paul. 

 Chapter XXXI.—  The Perversive Heresy of the Manicheans which began at this Time. 

 Chapter XXXII.—  The Distinguished Ecclesiastics   of our Day, and which of them survived until the Destruction of the Churches. 

 Book VIII

 Book VIII.

 Chapter I.—  The Events which preceded the Persecution in our Times. 

 Chapter II.—  The Destruction of the Churches. 

 Chapter III.—  The Nature of the Conflicts endured in the Persecution. 

 Chapter IV.—  The Famous Martyrs of God, who filled Every Place with their Memory and won Various Crowns in behalf of Religion. 

 Chapter V.—  Those in Nicomedia. 

 Chapter VI.—  Those in the Palace. 

 Chapter VII.—  The Egyptians in Phœnicia. 

 Chapter VIII.—  Those in Egypt  .

 Chapter IX.—  Those in Thebais. 

 Chapter X.—  The Writings of Phileas the Martyr describing the Occurrences at Alexandria. 

 Chapter XI.—  Those in Phrygia. 

 Chapter XII.—  Many Others, both Men and Women, who suffered in Various Ways. 

 Chapter XIII.—  The Bishops of the Church that evinced by their Blood the Genuineness of the Religion which they preached. 

 Chapter XIV.—  The Character of the Enemies of Religion. 

 Chapter XV.—  The Events which happened to the Heathen. 

 Chapter XVI.—  The Change of Affairs for the Better. 

 Chapter XVII.—  The Revocation of the Rulers. 

 Martyrs of Palestine.

 Martyrs of Palestine.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Book IX

 Book IX.

 Chapter II.—  The Subsequent Reverse. 

 Chapter III.—  The Newly Erected Statue at Antioch. 

 Chapter IV.—  The Memorials against us. 

 Chapter V.—  The Forged Acts. 

 Chapter VI.—  Those who suffered Martyrdom at this Time. 

 Chapter VII.—  The Decree against us which was engraved on Pillars. 

 Chapter VIII.—  The Misfortunes which happened in Connection with these Things, in Famine, Pestilence, and War. 

 Chapter IX.—  The Victory of the God-Beloved Emperors. 

 Chapter X.—  The Overthrow of the Tyrants and the Words which they uttered before their Death. 

 Chapter XI.—  The Final Destruction of the Enemies of Religion. 

 Book X

 Book X.

 Chapter II.—  The Restoration of the Churches. 

 Chapter III.—  The Dedications in Every Place. 

 Chapter IV.—  Panegyric on the Splendor of Affairs. 

 Chapter V.—  Copies of Imperial Laws. 

  Chapter VI.   —   Copy of an Imperial Epistle in which Money is granted to the Churches. 

 Chapter VII.—  The Exemption of the Clergy. 

 Chapter VIII.—  The Subsequent Wickedness of Licinius, and his Death. 

 Chapter IX.—  The Victory of Constantine, and the Blessings which under him accrued to the Subjects of the Roman Empire. 

 Supplementary Notes and Tables.

 On Bk. III. chap. 3, § 5 (note 17, continued).

 On Bk. III. chap. 3, § 6 (note 22, continued).

 On Bk. III. chap. 24, § 17 (note 18 continued).

 On Bk. III. chap. 25, § 4 (note 18 continued).

 On Bk. III. chap. 28, § 1.

 On Bk. III. chap. 32, § 6 (note 14  a  ).

 On Bk. III. chap. 36 § 13.

 On Bk. III. chap. 39, § 1 (note 1, continued).

 On Bk. III. chap. 39, § 6.

 On Bk. III. chap. 39, § 16.

 On Bk. IV. chap. 10.

 On Bk. IV. chap. 18, § 2.

 On Bk. V. Introd. § I (note 3, continued).  The Successors of Antoninus Pius  .

 On Bk. V. chap. 1, § 27 (note 26, continued).

 On Bk. VI. chap. 2 (note 1, continued).  Origen’s Life and Writings  .

 On Bk. VI. chap. 8, § 5 (note 4).  Origen and Demetrius  .

 On Bk. VI. chap. 12, § 6.

 On Bk. VI. chap. 23, § 4 (note 6).  Origen’s Visit to Achaia  .

 On Bk. VII. chap. 25, § 11.

 On Bk. VII. chap. 26, § 1 (note 4, continued).

 On Bk. VIII. chap. 2, § 4 (note 3, continued).  The Causes of the Diocletian Persecution  .

 On Bk. X. chap. 8, § 4 (note I, a).

 Table of Roman Emperors.

 The Bishops of Rome, Alexandria, Antioch, and Jerusalem, mentioned by Eusebius.

  Bishops of Alexandria. 

  Bishops of Antioch. 

  Bishops of Jerusalem. 

 Table showing the Roman Method of counting the Days of the Month.

 Table of Macedonian Months

Preface.

The present translation of the Church History of Eusebius has been made from Heinichen’s second edition of the Greek text, but variant readings have been adopted without hesitation whenever they have approved themselves to my judgment. In all such cases the variation from Heinichen’s text has been indicated in the notes. A simple revision of Crusè’s English version was originally proposed, but a brief examination of it was sufficient to convince me that a satisfactory revision would be an almost hopeless task, and that nothing short of a new and independent translation ought to be undertaken. In the preparation of that translation, invaluable assistance has been rendered by my father, the Rev. Joseph N. McGiffert, D.D., for whose help and counsel I desire thus publicly to give expression to my profound gratitude. The entire translation has been examined by him and owes much to his timely suggestions and criticisms; while the translation itself of a considerable portion of the work (Bks. V.–VIII. and the Martyrs of Palestine) is from his hand. The part thus rendered by him I have carefully revised for the purpose of securing uniformity in style and expression throughout the entire work, and I therefore hold myself alone responsible for it as well as for the earlier and later books. As to the principle upon which the translation has been made, little need be said. The constant endeavor has been to reproduce as nearly as possible, both the substance and form of the original, and in view of the peculiar need of accuracy in such a work as the present, it has seemed better in doubtful cases to run the risk of erring in the direction of over-literalness rather than in that of undue license.

A word of explanation in regard to the notes which accompany the text may not be out of place. In view of the popular character of the series of which the present volume forms a part, it seemed important that the notes should contain much supplementary information in regard to persons, places, and events mentioned in the text which might be quite superfluous to the professional historian as well as to the student enjoying access to libraries rich in historical and bibliographical material, and I have therefore not felt justified in confining myself to such questions as might interest only the critical scholar. Requested by the general editor to make the work in some sense a general history of, or historical commentary upon, the first three centuries of the Christian Church, I have ventured to devote considerable space to a fuller presentation of various subjects but briefly touched upon or merely referred to by Eusebius. At the same time my chief endeavor has been, by a careful study of difficult and disputed points, to do all that I could for their elucidation, and thus to perform as faithfully as possible the paramount duty of a commentator. The number and fulness of the notes needed in such a work must of course be matter of dispute, but annoyed as I have repeatedly been by the fragmentary character of the annotations in the existing editions of the work, I have been anxious to avoid that defect, and have therefore passed by no passage which seemed to me to need discussion, nor consciously evaded any difficulty. Working with historical students constantly in mind I have felt it due to them to fortify all my statements by references to the authorities upon which they have been based, and to indicate at the same time with sufficient fullness the sources whose examination a fuller investigation of the subject on their part might render necessary. The modern works which have been most helpful are mentioned in the notes, but I cannot in justice refrain from making especial reference at this point to Smith and Wace’s  Dictionary of Christian Biography which has been constantly at my side, and to the first and second volumes of Schaff’s  Church History , whose bibliographies have been especially serviceable. Many of Valesius’ notes have been found very suggestive and must always remain valuable in spite of the great advance made in historical knowledge since his day. For the commentary of Heinichen less can be said. Richardson’s  Bibliographical Synopsis , published as a supplement to the Ante-Nicene Library, did not come into my hands until the greater part of the work was completed. In the preparation of the notes upon the latter portion it proved helpful, and its existence has enabled me throughout the work to omit extended lists of books which it would otherwise have been necessary to give.

It was my privilege some three years ago to study portions of the fourth and fifth books of Eusebius’ Church History with Professor Adolf Harnack in his  Seminar at Marburg. Especial thanks are due for the help and inspiration gained from that eminent scholar, and for the light thrown by him upon many difficult passages in those portions of the work.

It gives me pleasure also to express my obligation to Dr. Isaac G. Hall, of New York, and to Dr. E. C. Richardson, of Hartford, for information furnished by them in regard to certain editions of the History, also to the Rev. Charles R. Gillett, Librarian of Union Theological Seminary, and to the Rev. J. H. Dulles, Librarian of Princeton Theological Seminary, for their kindness in granting me the privileges of the libraries under their charge, and for their unfailing courtesy shown me in many ways. To Mr. James McDonald, of Shelbyville, Ky., my thanks are due for his translation of the Testimonies for and against Eusebius, printed at the close of the Prolegomena, and to Mr. F. E. Moore, of New Albany, Ind., for assistance rendered in connection with the preparation of the indexes.

Arthur Cushman McGiffert.

Lane Theological Seminary,

April 15, 1890.