This edifice is of great interest and antiquity. According to the "Black Book of Christ's Church," a very ancient record, its vaults, or what is now the crypt, were built by the Danes before the first visit of St. Patrick to Dublin in the fifth century, but who is erroneously reported to have celebrated mass in them. The present edifice, in comparison with these vaults, is quite modern, for it was not built till five hundred years after; but enough of antiquity remains to excite our admiration, for this building was begun in the year 1038,--845 years ago, 152 years before the building of St. Patrick's, and about half-way between the date of the birth of Christ and our own day. The statement that St. Patrick said mass in the crypt of this cathedral is simply a legend, for he had ended his ministry early in the fifth century. A sort of tavern was kept for centuries in this crypt; while services were being performed above, the votaries of Bacchus were adoring their god beneath. It was no uncommon thing in that age for churches to provide accommodation for the tramps and bummers of the time. As late as the close of the sixteenth century, the benches at the door of Old St. Paul's, London, were used by beggars and drunkards to sleep on, and the place was surrendered to idlers of all descriptions. Christ Church Cathedral was greatly enlarged by Lawrence O'Tool, who, in 1163, changed the canons, originally secular, into the regular canons of Arras, as they were termed. Next, Strongbow, the Earl of Pembroke, and Fitzstephen, both Norman adventurers, made repairs and additions about the year 1170; and again Raymond le Gros, at a yet later day, added the steeple, choir, and two small chapels. In 1190, but twenty years after, it was practically rebuilt by John Comyn, who at the same time was building St. Patrick's; and about the year 1360 John de St. Paul erected the chancel. With occasional repairs the edifice remained as it was, 523 years ago, till a few years since, when great dilapidation had taken place, and extensive restorations were needed. Not to be outdone by Mr. Guinness at St. Patrick's, Henry Roe, Esq., the well-known distiller of Dublin, emulating the example of his friend, ordered, at his own expense, complete repairs on both the exterior and interior, costing a full million of dollars. The work was done under the architectural supervision of G. A. Street, and paid for by Mr. Roe as the work proceeded. At the time of our second visit, May 2, although not entirely finished, the building had been reopened, and an assemblage of the most distinguished prelates of the Episcopalian order held a four days' service, largely musical, at the grand opening, of which we speak hereafter.