on the other hand, an endeavour has been made to give references, at the end of articles, to recent publications of importance on each subject; and in this endeavour the Editors must express their great indebtedness to the valuable Patrology of Professor Bardenhewer, already referred to, and to the admirable third edition of Herzog and Hauck's Protestant Cyclopaedia, and occasionally to the parallel Roman Catholic Cyclopaedia of Wetzer and Welte, edited by Cardinal Hergenröther. It may be permissible, in referring to these auxiliary sources, to express a deep satisfaction at the increasing co-operation, in friendly learning, of Protestant and Roman Catholic scholars, and to indulge the hope that it is an earnest of the gradual growth of a better understanding between those two great schools of thought and life.
The Editors cannot conclude without paying a final tribute of honour and gratitude to the generous and devoted scholar whose accurate labours were indispensable to the original work, as is acknowledged often in its Prefaces, and who rendered invaluable assistance in the first stage of the preparation of the present volume—the Rev. Charles Hole, late Lecturer for many years in Ecclesiastical History in King's College, London. Dr. Wace hoped to have had the happiness of having his own name associated with that of his old teacher, friend, and colleague on the title-page of this volume, and he laments that death has deprived him of this privilege. He cannot, however, sufficiently express his sense of obligation to his colleague, Mr. Piercy, for the ability, skill, and generous labour without which the production of the work would have been impossible.
