With this exception, we heartily congratulate the author on his latest volume. He is himself one of the political chieftains who has nobly helped to make a new Ireland. He is a very able and ready man, whose value was at once recognized in the English Parliament, and whose services to his country and to the party which he materially helped to form have been of the most marked and important character. His life has been an honorable one, and he has well earned the fame that now attends him. No man who looks hopefully to the new Ireland can help following with sympathy and interest the future career of A. M. Sullivan. DE ECCLESIA ET CATHEDRA; or, The Empire-Church of Jesus Christ. An epistle by the Hon. Colin Lindsay. Vols. i. and ii. London: Longmans, Green & Co. 1877. (For sale by The Catholic Publication Society Co.) Mr. Lindsay, who is a Scottish convert of some ten years’ standing, and was formerly one of the principal lay-leaders in the ritualistic party, has already won a high reputation by a valuable work on St. Peter’s Primacy. The present one is original in its conception and different from any other on the same subject in its method of treating the topics indicated by the title. The grand principles and laws of the church and the Papacy are considered in their universal character as forming the ground-plan of the government of divine Providence over the human race from the beginning. It has a wide historical sweep, and embodies a great mass of solid learning and sound reasoning. The author is sometimes fanciful in his theories and occasionally deficient in theological accuracy of expression, as well as in his style and construction of sentences. These are but faults of minor importance, however, not seriously detracting from the great merits of his most interesting and instructive work. It is quite in the same line of argument with the articles on Historical Christianity we have lately published, and those who are interested in that important and very attractive aspect of religion will find the greatest profit and pleasure in perusing it. One most valuable and quite novel portion of the author’s exposition of the apostolic and divine institution of the Papal Supremacy, is his application of the principle of reserve contained in the discipline of the secret to the particular doctrine in question, as explaining the guarded and reticent manner in which the sacred writers and the early Fathers speak of those high prerogatives of the Christian hierarchy and its chief, which would give umbrage to the Jewish priesthood and the Roman emperors. Full justice could not be done to Mr. Lindsay’s comprehensive and elaborate production without making a long and careful analysis and review of his positions and his manner of supporting them. We trust many of our readers will gain a much better knowledge of its contents than we could possibly give them in this way, by making a careful study of the work itself.