"On entering the castle, a company of ushers, distinguished by their badges, were in readiness to direct the visitors to that part of the hall where their seats were located. Colored lamps and hangings suspended to the pillars indicated at a glance the different divisions, and the task of seating the whole audience of near seven thousand persons was thus accomplished without the least inconvenience. The hall was brilliantly lighted, though from its vast extent the stage looked somewhat dim. The wooden partition which was built up in place of the drop-curtain, is covered with a painting representing the combined standards of America and Sweden, below which are arabesque ornaments in white and gold. Considering the short time allowed for these improvements, the change was remarkable. The only instance of bad taste which we noticed was a large motto, worked in flowers, suspended over the pillars of the balcony directly in front of the stage. 'Welcome, Sweet Warbler' (so ran the words), was not only tame and commonplace, but decidedly out of place. "The sight of the grand hall, with its gay decoration, its glittering lamps, and its vast throng of expectant auditors, was in itself almost worth a $5 ticket. We were surprised to notice that not more than one-eighth of the audience were ladies. They must stay at home, it seems, when the tickets are high, but the gentlemen go, nevertheless. For its size, the audience was one of the most quiet, refined and appreciative we ever saw assembled in this city. Not more than one-third were seated before 7 o'clock, and when the eventful hour arrived they were still coming in. A few of the seats were not taken when the orchestra had assembled, and Mr. Benedict, who was greeted with loud cheers on his appearance, gave the first flourish of his baton. "The musical performance commenced with Jules Benedict's overture to his opera, The Crusaders, himself conducting the orchestra of 60 instruments. It was an admirably balanced and effective orchestra, and notwithstanding that we had to listen as it were round a corner, we felt the unity and full force of its strong chords, and traced the precise and delicate outline of its melodies with a distinctness which proved that a clear musical idea was there, too clearly embodied to be lost even in that vast space. We liked the first half of the composition best; it had the dark shading and wild vigor and pathos of Von Weber; the allegro which set in upon it was more in the light popular manner of Auber and the French. Yet Mr. Benedict has proved his mastery in this work, which the vast audience acknowledged with very hearty plaudits.