Federal gun-boats and winter quarter, &c.
Cairo, Nov. 25.
--The gun-boats Lexington
has gone to St. Louis
to convey two new gun-boats just finished, to this place.
They will probably arrive to-morrow.
Active preparations are being made to place their armament on them at once.
Their crews will be taken from 500 marines that arrived here on Wednesday last.
Several floating batteries are expected down immediately.
Barracks for winter quarters are being rapidly completed.
, Nov. 25.--The work on the mortar fleet is progressing rapidly.
The boats are expected to be finished this week.