Capture of the Federal steamer Fanny.
Wilmington, N. C., Oct. 6
--An authentic letter from an officer on board the steamer Raleigh, dated on the 2d inst., says that the steamers Curlew and Raleigh had captured the Federal steamer Fanny on the evening before.
She was loaded with blankets, great coats, shoes, and clothing for the Federal fleet, and had 45 men on board.
No one was either killed or wounded on either side.
The steamer Fanny and her cargo are worth nearly $100,000.