The early return of the Congress was quite a surprise, the Brandywine herself having but just arrived. We had made the trip down and back again in the same number of days—eighteen—which had been occupied by her in the one passage. Though a surprise, it was, however, a greater joy to her officers and crew. They are more than three years from home, and have long been waiting a relief. Moreover, Commodore Storer had given the assurance, before we were sighted, that they should be under way, homeward-bound, the next day but one after the Congress should arrive. True to his word, his anchors were up with the early dawn of the 18th inst. The departure, with its associations, was quite an exciting scene. The mist and fog of the two preceding days had disappeared, and the whole panorama of city and bay was in the perfection of its beauty in light, shades, and coloring. As with the first rays of the sun the frigate swung from her moorings, the Congress gave a salute. With the first echoings of this, her rigging was filled by the crew, clustered together like bees in a swarm, sending forth three cheers for the homeward-bound, with a feeling and will that swept every chord of the heart. Then came “Hail Columbia” from our band: the whole quickly followed by the salute, the cheers, and the music of “Home, sweet home,” from the Brandywine. By this time she was completely enveloped in a broad and lofty pyramid of convoluting and pearly smoke, beautifully illumined by the sun. I thought it a good time to bid her adieu, while thus lost to sight in a glory of her own creation, and descending to my state-room, left her to make her way out of the harbor as she best could.

The 19th inst. was a court-day at the palace. Commodore McKeever availed himself of it for a presentation to the Emperor and Empress, as the new commander-in-chief of the United States Naval Force on this station. I made one of his suite; and left the ship at noon for the ceremony, with a party of ten, including Lieutenant McKeever of the U. S. army, a son of the commodore, who, on furlough for six months after service in Florida, came to Brazil in the Congress on a visit to a brother connected with a principal mercantile house in Rio.

The palace fronts immediately upon the chief landing-place, a few hundred yards only from the water. It is an old building, originally the viceregal residence, appropriated to the court of Portugal on its immigration in 1808. It is of stone, stuccoed and painted yellow, in part two and in part three stories in height, and without architectural pretension. The front, occupied on the ground floor by a vestibule leading to the grand staircase, is scarce a hundred feet in width; but the building, enclosing a small quadrangle in the centre, runs back along the public square, about five or six hundred feet to the Rue Direita. Over this a gallery—thrown from the second story—communicates with a still older range of structures on that street, at right angles with the other, extending also some five or six hundred feet to the royal library and imperial chapel, both appendages of the palace. The rooms of state and the throne-room occupy the whole length of the second floor, on the side overlooking the square; and the imperial apartments and private rooms the whole of that on the other side of the quadrangle. The only use made of the palace is for receptions, at levees and drawing-rooms, and the giving occasionally of a state-ball: the family seldom if ever lodge in town. Having, in September, twice witnessed the arrival of the Emperor and Empress in state, from their residence at Boa Vista, I lost nothing of the usual spectacle on court-days, by not being on shore in time for this, on the present occasion. In both instances I happened to be crossing the square, when the approach of the cortège was signalled by a call, from bugle and drum, for the guard and bands in attendance to turn out for the reception. The degree of state and the splendor of equipage vary on different occasions. Sometimes mules only are driven; sometimes horses only—sometimes both attached to different carriages. The general display, at all times of ceremony, is much the same as that described at the prorogation of the legislature, a month ago. As the cavalcade approaches, the halberdiers with their battle-axes at rest, form, in single lines, on either side of the principal entrance, through the vestibule to the foot of the grand staircase. No objection was made to my taking a position, almost in a line with these, and within touching distance of their majesties as they passed. On the drawing up of the carriages at the entrance, the great officers of the household and ministers of the empire descending from the waiting-rooms, form a line on either side, within those of the guard, from the carriage door to the staircase. Immediately on the alighting, a kissing of hands by these is commenced. The Emperor, a step or two in advance of the Empress, presents his right hand for this purpose, first on one side and then on the other, the Empress following in the same manner with a constant short and quick bow of the head, and an expression of great kindness and benignancy. Both occasionally extend a hand beyond the courtiers to individuals among the halberdiers on the qui vive for the honor. As they thus pass, the grandees of the court close in after them, and the ladies and gentlemen in attendance, and in procession, mount the broad staircase.

This guard of halberdiers is not of hireling soldiery, but of volunteers of respectability from the middle ranks of life in the city; and the indulgence accorded by them of so near an approach of spectators as was allowed me, affords an opportunity for many a poor subject to place a petition in the hands of the Emperor or Empress, without the intervention of an official or courtier. I was pleased with the readiness and condescension with which two or three were received by the Emperor, from women of the humblest class in evident distress, and were placed in the crown of his chapeau, while kisses, tears, and thanks were showered on his hand.

On entering the palace we were received by Mr. Tod, the American ambassador, in the diplomatic saloon—the richest of the apartments excepting the throne-room. The imperial party were in the chapel at mass. Mr. Tod proposed to conduct us there, by the corridor over the Rua Direita, and we followed him in that direction, through a long succession of rooms, till met by several of the foreign ministers returning with the report, that the diplomatic tribune in the chapel was undergoing some repairs, and was closed. We therefore retraced our steps to await the close of the religious service. This was not long; and Don Pedro and Donna Theresa, followed by some twenty or thirty attendants, soon made their appearance on their way through the long suite of rooms to the audience chamber. The court dress of the ladies here, as in Russia, is a uniform: a white brocade embroidered in gold, train of green velvet with corresponding embroideries, and head-dress of ostrich plumes and diamonds. This is a sensible regulation promotive of economy, by an avoidance of the rivalry in expense and display, among the ladies, though at a sacrifice of the picturesque, from variety in taste and elegance in such a spectacle. Among the ladies in attendance was one more than eighty years of age, a venerable condessa, who accompanied the royal family from Portugal in 1808, and has been a leader of the fashion in the court circles, through the change of four dynasties, to the present time.

The Emperor led the suite a little in advance of the Empress. He is in stature truly a splendid specimen of humanity. The maturity of his countenance, as well as figure, leads to a supposition of his being full ten years older than he really is. An imperturbable gravity and unbending dignity contribute to this impression.

The diplomatic corps and our party fell into line on one side of the room, and saluted the Emperor and Empress as they passed by a bow, receiving a stately return from each, accompanied by a very decided look of scrutiny at such as were perceived to be strangers. A long range of apartments was to be passed through, before reaching the throne-room, and it was some minutes before a chamberlain announced to Mr. Tod—the senior ambassador in residence, and thus entitled to lead the diplomatic procession—that their majesties were on the throne.

The intervening rooms were thronged with Brazilians, representing in strong force the church, the army, the navy and judiciary, with many in civil life, in distinctive uniforms and varied court dress; but I missed in the throng much of the picturesque variety noticed in 1829. There were now no barefooted friars nor mendicant monks—no Augustines in white, nor Franciscans in gray, with corded belts and dangling cross and rosary. It was manifest that, at court at least, the monkish days are past: the high dignitaries of the church in purple and scarlet, in satins and lace, were the only representatives of the religious orders.

The state apartments in general appeared naked and unattractive compared with the recollections of 1829. The best paintings have been removed; one or two only worthy of attention remain. One, the martyrdom of St. Sebastian, is impressive, and the work of a master in the art. There are also some good battle-pieces illustrative of Portuguese history, in the olden times. The two largest pictures represent respectively the coronation of Don Pedro I., and the marriage of the present Emperor and Empress. They are coarse and inartistic in execution, but valuable from the number of portraits they contain, the principal figures introduced being from sittings to the painter of the personages delineated.

The throne-room is a large and magnificent apartment, the predominating colors in the finish and furniture being green and gold. The lofty, vaulted ceiling, among other embellishments in fresco, presents medallion portraits, real or fictitious, of all the sovereigns of the House of Braganza, from the establishment of the kingdom of Portugal to the present time.