The writer has endeavored to illustrate the subject by frequent pagan sepulchral inscriptions, and by citations from the writings of the Fathers, which often throw much light on the condition of early Christian society. The value of the work is greatly enhanced, it is thought, by the addition of many hundreds of early Christian inscriptions carefully translated, a very large proportion of which have never before appeared in English. Those only who have given some attention to epigraphical studies can conceive the difficulty of this part of the work. The defacements of time, and frequently the original imperfection of the inscriptions and the ignorance of their writers, demand the utmost carefulness to avoid errors of interpretation. The 6 writer has been fortunate in being assisted by the veteran scholarship of the Rev. Dr. McCaul, well known in both Europe and America as one of the highest living authorities in epigraphical science, under whose critical revision most of the translations have passed. Through the enterprise of the publishers this work is more copiously illustrated, from original and other sources, than any other work on the subject in the language; thus giving more correct and vivid impressions of the unfamiliar scenes and objects delineated than is possible by any mere verbal description. References are given, in the foot-notes, to the principal authorities quoted, but specific acknowledgment should here be made of the author’s indebtedness to the Cavaliere De Rossi’s _Roma Sotterranea_ and _Inscriptiones Christianæ_, by far the most important works on this fascinating but difficult subject. Believing that the testimony of the Catacombs exhibits, more strikingly than any other evidence, the immense contrast between primitive Christianity and modern Romanism, the author thinks no apology necessary for the somewhat polemical character of portions of this book which illustrate that fact. He trusts that it will be found a contribution of some value to the historical defense of the truth against the corruptions and innovations of Popish error. CONTENTS. 7 Book First. THE STRUCTURE AND HISTORY OF THE CATACOMBS. CHAPTER PAGE I. THE STRUCTURE OF THE CATACOMBS 11 II. THE ORIGIN AND EARLY HISTORY OF THE CATACOMBS 49 III. THE DISUSE AND ABANDONMENT OF THE CATACOMBS 120 IV. THE REDISCOVERY AND EXPLORATION OF THE CATACOMBS 150 V. THE PRINCIPAL CATACOMBS 164 Book Second. THE ART AND SYMBOLISM OF THE CATACOMBS.