REDCAR.—On the morning of the 7th September the sloop Robert, of Hull, which had been anchored for three weeks off Redcar, engaged in removing portions of the wreck of a steamer, weighed her anchor and made sail, her position having become perilous owing to the increasing wind and sea. While tacking close to the East Bock her mast went by the board and both anchors were thereupon let go, the vessel lying close to the rocks. The Brothers Life-boat was promptly launched at 6 A.M., and brought safely ashore the sloop's crew, consisting of two men..