[7:1] Alzog, i., 32.
[7:2] Gieseler, Ecclesiastical History, sec. 3 and 7.
[7:3] Examine recently published texts like Emerton, Mediæval Europe, Robinson, History of Western Europe, Munro, A History of the Middle Ages, etc.
[8:1] The Monumenta in Germany, the Rolls Series in England, etc.
[9:1] Schaff, Church History, preface.
[9:2] Mace, Method in History, 27-39.
[9:3] Freeman, Methods of Historical Study, Lond. and N. Y., 1886.