By twelve o'clock the ship approached so near the Thrum Cap shoals that the master became alarmed, and sent for Mr. Galvin, master's mate, who was sick below. On his coming upon deck, he heard the man in the chains sing out, "by the mark five!" the black man forward at the same time crying "steady!" Galvin got on one of the carronades to observe the situation of the ship; the master ran in great agitation to the wheel, and took it from the man who was steering, with the intention of wearing the ship; but before this could be effected, or Galvin was able to give an opinion, she struck.--Captain Barker immediately went on deck and reproached the master with having lost the ship. Seeing Galvin likewise on deck, he addressed him and said "that, knowing he had formerly sailed out of the harbor, he was surprised he could stand by and see the master run the ship on shore," to which Galvin replied "that he had not been on deck long enough to give an opinion." Signals of distress were immediately made, and answered by the military posts and ships in the harbor, from which, as well as the dock-yard, boats immediately put off to the relief of the Tribune. The military boats, and one of those from the dock-yard, with Mr. Rackum, boatswain of the ordinary, reached the ship, but the wind was so much against the others, that, in spite of all their exertions, they were unable to get on board. The ship was immediately lightened by throwing overboard all her guns, excepting one retained for signals, and every other heavy article, so that about half past eight o'clock in the evening the ship began to heave, and at nine got off the shoals. She had lost her rudder about three hours before, and it was now found, on examination, that she had seven feet water in the hold. The chain-pumps were immediately manned, and such exertions were made that they seemed to gain on the leaks. By the advice of Mr. Rackum, the captain ordered the best bower anchor to be let go, but this did not bring her up. He then ordered the cable to be cut; and the jib and fore-top-mast stay-sail were hoisted to steer by. During this interval a violent gale, which had come on at S. E. kept increasing, and carrying the ship to the western shore. The small bower anchor which soon afterwards let go, at which time they found themselves in thirteen fathom of water, and the mizen-mast was then cut away.