The American government did not however neglect to take advantage of his information and experience; and news having arrived of some success on the part of Hamet, it was determined to send a much larger force to the Mediterranean. This squadron sailed on the 13th of August, under the command of Commodore Preble; and after halting a few days in the Straits of Gibraltar, in order to settle affairs with the Emperor of Morocco at Tangiers, it joined the other ships off Tripoli in October. A circumstance here occurred of the most disastrous nature, and which probably contributed more than any other, to prevent the dethronement of Yusuf, or the termination of the differences between the United States and the Barbary nations, in a manner entirely satisfactory to the former. The frigate Philadelphia, while in chase of a Tripoline ship on the 31st of October (1803), struck upon a rock at the entrance of the harbor of Tripoli with so much violence, that she remained immoveable by any means at the disposition of the crew, and consequently defenceless. Her situation being ascertained in the city, a number of gun boats were instantly sent out, to which, as no resistance could be made, she was of necessity surrendered. The crew, consisting of three hundred, with their captain Bainbridge, were transferred to the city; two days after the ship was got off, towed into port, and being easily repaired, was likely to prove a valuable accession to the naval strength of the Pasha. The capture of the Philadelphia was however calculated to produce a moral effect infinitely more injurious to the American cause than the mere loss of the ship, and her acquisition by Tripoli. The skill, and even the personal bravery of the naval men of the United States, had been rendered doubtful by the proceedings of the two previous years; these doubts now assumed the form of a certainty, the most unfavorable and mortifying; and unless something had been immediately done to retrieve the honor of the flag, it must have quitted the Mediterranean in disgrace, or designated every ship over which it waved, as the bearer of tribute.