A steam frigate off the Bar.
--At an early hour this morning a large steam frigate made her appearance off this harbor, and for some time there was much speculation as to her nationality, but about mid-day the steamer
Charleston took on board a party of gentlemen, and proceeded outside the port for the purpose of finding out the character of the vessel.
She succeeded in getting within three miles of her, when the frigate stood off, and apparently was disposed to avoid intercourse.
Sufficient was observed, however, to announce her as a large
United States steam frigate, and is, no doubt, the
Minnesota,
Commodore Stringham, which vessel has come here to enforce the blockade.
The
Minnesota is a frigate of the first class, and is heavily armed.
She was built at the same time of the
Niagara, Wabash,
Roanoke, &c.--
Charleston (S. C. ) News, May 29