This structure, erected in 1841, stands on St. Claude street, corner of Bayou road. It is about 50 feet front by 90 deep. The architect, Mr. Depouilly, has displayed an excellent taste in its construction. The style is of a mixed order, but extremely neat--and in such good keeping, that the interior has the appearance of being much smaller than it actually measures. The decorations are worthy of the sacredness of the place. The colored glass of the windows throws a beautiful mellowed light across the aisles, producing a chastened effect suited to the solemnity of the place. Immediately over the altar is a full length painting of the tutelar saint, which is executed with the bold hand of a master. At the right of this is the Virgin Mary, little inferior to the first, but finished with much greater delicacy of touch. Our Saviour is conspicuously represented in the ceiling, over the centre--around which, on the gallery below, and between the windows, are portraits of the saints, arranged in the panel-work. Take this church altogether, it is one of the neatest houses of devotion in this city. ST. ANTOINE'S, OR THE MORTUARY CHAPEL On account of the great increase in the population of the city, and consequent greater number of interments, objection was made, about the year 1822, to the performance of services for the dead in the Cathedral, it being in a very prominent and public situation. Under these circumstances, the city made a grant of a piece of land at the corner of Conti and Rampart streets, to the foundation of the Church of St. Louis, on condition of their erecting upon the same, a chapel, as a place for the performance of the funeral ceremonies, in conformity to the catholic ritual. In pursuance of this intention, a cross, marking the present site of the altar of the chapel, was placed there with proper ceremonies, on the 10th of October, 1826, and on the following morning the building was begun. Its erection was prosecuted at the expense of the catholic foundation, and completed within a year after its commencement, at a cost of about $16,000. It is a plain but very neat edifice, of the Gothic composite order; and was dedicated to the most holy St. Antony of Padua, as its guardian. All funeral ceremonies of catholics are performed there. [Illustration: CHAPEL OF THE URSULINES] THE CHAPEL OF THE URSULINES An edifice strongly characteristic of our city, and well calculated to cause reflection on the many and sudden changes of dynasty to which New Orleans has been subjected. This building, of a quaint old style of architecture, was erected, according to a Spanish inscription on a marble tablet in the middle of the façade, in 1787, during the reign of Carlos III, (Don Estevan Miro being governor of the province,) by Don Andre Almonaster Y Roxas. It is exceedingly plain and unpretending in its exterior, and chiefly interesting from its associations, and extremely antiquated appearance. [Illustration: CHRIST CHURCH, (EPISCOPAL.)]