The editorship of Dr. Wace terminated during the progress of the work, but I am indebted to him, and very gratefully acknowledge the obligation, for valuable counsel and suggestions.  I also desire to record my thanks to the Rev. C. Hole, Lecturer in Ecclesiastical History at King’s College, London, and to Mr. Reginald Geare, Head Master of the Grammar School, Bishop’s Stortford, to the former for help in the revision of proof-sheets and important suggestions, and to the latter for aid in the translation of several of the Letters.