The present building has a front of seventy-nine feet on St. Charles street, extends back one hundred and forty-nine, and is fifty-three high. The main entrance and front wall are remains of the former establishment; which, from the substantial workmanship, resisted the conflagration so effectually as to be made available the second time. Passing this memento, the spectator finds himself in the vestibule, thirty-four by twenty-three feet, from which a double flight of geometrically formed stairs ascend to the first tier. Here the pit is seen in a semi-circular shape. The centre box is but fifty-one feet from the foot lights, which brings the audience within a convenient distance of the stage. The depth of the front boxes to the rear is twenty-one feet. The proscenium presents an elevation of thirty-nine feet in the clear, by fifty in width. The upper circles of boxes possess the like advantage of the first, in respect to a distinct view of the performances. The fronts of the boxes consist of an open balustrade, producing a novel, and agreeable effect. The dome is ornamented with sunken panels, suitably embellished with emblematic devices. A golden-fringed national drapery falls from the proscenium, displaying an ingeniously contrived allegory in the centre. Four columns sustain an ornamented entablature above, composed of a mixed style of architecture, and copied after those of the celebrated temple of Benares. THE AMERICAN THEATRE Burnt on the 30th of July, 1842, was rebuilt and reopened on the 5th of December following, at a cost of $28,000. The building is ninety by one hundred and fifty feet, and sufficiently elevated for all the purposes of the drama, but irregular in its altitude. The depth of the stage is sixty feet, and the width of the proscenium thirty-eight. The house will accommodate over fifteen hundred persons. It stands near Lafayette square, on Poydras street; and, from its isolated position, presents quite an imposing appearance. THE CIRCUS The company have fitted up the old depôt of the Carrolton rail-road, situated on the corner of Poydras and Baronne streets, as a place for exhibiting feats of horsemanship. As the buildings possess no especial interest beyond these performances, they require no particular description--but as this amusement has an attraction for almost every class of visitors, not to have referred to it might have been deemed an inexcusable oversight. There is a stage attached to this establishment; and farces and the ballet relieve the monotony of the sports of the ring. THE PUBLIC SQUARES