This valuable work, which Mr. O'Shea, with a laudable spirit of enterprise, is giving us by instalments, is intended for just that class of readers who stand most in need of a readable and pretty full Church history. When completed it will fill four portly volumes, imperial octavo; yet it is a work adapted more especially to family reading than to the use of the scholar in his closet. The Abbé Darras has judiciously refrained from obstructing the flow of his narrative by minute references and quotations, nor has he suffered his pen to run away into long discussions of controverted questions. What he says of the chronology which he has followed, he might have said, if we have read him {142} aright, of his whole work: "We have adopted a system already completed, not that it may perhaps be the most exact in all its details, but because it is the one most generally followed." This seems to be the principle which he has kept before his eyes throughout; and considering the purpose for which he wrote, we think it a good one. With all the simplicity and modesty of his style, however, he shows a thorough knowledge of the intricacies of his subject, and an acquaintance with what the best scholars have written before him. His history, therefore, fills a void which has long been aching. The translation, made by a lady well known and respected by the Catholics of the United States, reads smoothly, and we doubt not is accurate. It has been revised by competent theologians, and has the special sanction of the Archbishop of Baltimore, beside the approbation of the Archbishops of New York and Cincinnati. The work in the original French received the warmest encomiums from the European clergy, and the author was honored, at the conclusion of his labors, by a kind letter from the Pope. The mechanical execution of the book is beautiful. The paper is good, and the type large and clear. We thank Mr. O'Shea for giving us so important a work in such a rich and appropriate dress. THE PROGRESS OF THE AGE, AND THE DANGER OF THE AGE. Two lectures delivered before the St. Xavier Conference of the St. Vincent de Paul Brotherhood in the Hall of St. Louis University. By the Rev. Louis Heylen, S. J. 12mo., pp. 107. Cincinnati: John P. Walsh.