Interesting from Port Hudson--Sloop-of-war Richmond--long-range Practice, &c.
Port Hudson, La., March 21.
--Reports of the sinking of the U. S. sloop-of war Richmond from injuries received in the fight of the 15th inst., prevail.
Nothing definite, however, has been ascertained.
The mortar fleet still occupy their old position, out of range below.
Yesterday the enemy fired slowly at our transports with long-range guns, without effect.
A party landed from the transports and burned the residence of Capt. J. Horn, formerly that of Col; Sidney Robertson, on the opposite shore.
Some activity has prevailed among the enemy's transports for the last two days, but there are no indications of another attempt to pass the batteries.
Twenty Federal deserters have arrived in the last two days, and are continually coming in. They confirm the previous reports of demoralization in Banks's army.
Our batteries sustained no injuries in the late engagement, and are ready at all times to give the enemy a warm reception. 