A Yankee steamer Brown up by a torpedo in Florida.
--The following is the official telegram relative to the blowing up of the Yankee steamer near Jacksonville, Fla.,
General — A large, double stack, side-wheel steamer is sunk opposite the mouth of Doctor's Dake, fifteen miles above Jacksonville. She is supposed to be the Maple Leaf. She exploded a torpedo at 4 o'clock this morning. Particulars not known.
Patten Anderson, Major General Commanding.