The question was at length brought to a direct issue. On the 24th of May, an armed vessel under Tunisian colors, with two prizes, attempted to enter the port of Tripoli, and were taken by the frigate Constitution. On examination, it appeared that the cruiser corresponded in no point with the description in the passport exhibited by her captain, which must therefore have been improperly obtained; and other circumstances led to the belief, that she was Tripoline property and manned by Tripolines, although commanded by a Tunisian subject. She was of course condemned, and sent with her prizes to the United States. The rage of the Bey on being informed of this seizure was violent and unrestrained; he insisted that the Consul should cause the vessels to be immediately restored, and ample satisfaction to be made for the injury and insult committed against him and his subjects. Mr. Davis replied, that having no power himself, he could only state the demand to the Commodore, but he had no expectation that it would be complied with. The Bey, according to the usual policy of the Barbary Princes, would not admit of this reference to an authority over which he could have no control or influence; and endeavored by threats of war and of personal violence, to extort from the Consul a promise that the vessels should be restored, in order that he might afterwards allege such promise, as the solemn act of the American government. Davis however remained firm, and transmitted a statement of the whole affair to Mr. Lear, which reached him off Tripoli, immediately after the conclusion of the peace with Yusuf. In consequence of this communication, the Commodore wrote a letter to Hamouda, declaring his demands inadmissible, and despatched a frigate and a brig to watch his movements. This letter increased the rage of the Bey; he told the Consul that negotiation was impossible; that he would be forced into a war by the conduct of the Americans, who had been the first to capture one of his cruisers in time of peace; and that if hostilities should commence, they would not end while he had a soldier to fire a gun. After such indications of his disposition, Rodgers considered that no time was to be lost, he accordingly sailed for Tunis, and arrived in the gulf on the 1st of August; his force then amounted to five frigates, two brigs, a sloop of war, two schooners, and several gun-boats.