The weather was for several days unfavorable for an attack. At length on the 3d of August the American squadron approached the harbor, and began to throw shells into the town. The fire was returned from the batteries and vessels, and during five hours a constant cannonade was kept up on both sides. Three of the Tripoline gun boats were boarded and taken; their other vessels were materially injured, and much damage was done to the town and fortifications: but as nothing more could be effected, the squadron withdrew, having lost only one man, Lieutenant James Decatur, and had thirteen wounded. The results not proving sufficient to bring Yusuf to terms, another attack was made on the 7th of August, which terminated less favorably to the Americans; one of their prizes having been blown up, and their whole loss amounting to fourteen killed, and four wounded, without having produced any notable injury to the Tripolines. On the evening of this day a frigate arrived from the United States, bringing information that a large reinforcement might be soon expected, under the command of Commodore Samuel Barron, who being the senior officer, would supercede Preble. This news caused a suspension of the attacks, during which Yusuf made offers of peace, on consideration of receiving five hundred dollars as the ransom of each of his prisoners. This offer was rejected at once, and the expected reinforcement not appearing, Tripoli was bombarded on the night of the 24th of August. On the 28th another attack was made, by which the castle and town suffered considerably, and three of the Tripoline gun boats were destroyed; and on the 3d of September another, with less success. On the 4th a bold attempt was made to set fire to the vessels lying in the harbor, and injure the batteries. The schooner Intrepid, with which Decatur had executed his enterprise on the Philadelphia, was converted into a fire ship, being filled with powder and combustibles; and in it, with merely a boat attached in order to return after the fire had been communicated, Lieutenants Wadsworth, Somers and Israel embarked, and steered in the direction of the vessels. Two of the Tripoline gallies were seen to row towards the Intrepid, and place themselves one on each side of her; a terrific explosion then took place; the three vessels were shivered into atoms, and a number of shells fell, spreading destruction on the unfortunate town. Of those who had embarked in the Intrepid, nothing was ever heard. It is supposed that seeing escape impossible, they had involved themselves and their enemies in one common destruction. No more attempts were made upon Tripoli during this season. The storms which prevail on that coast in the Autumn had commenced, and it was considered improper to expose the small vessels to their violence. They were therefore sent to Syracuse, the Constitution and two brigs remaining to keep up the blockade.