From Mississippi.
Meridian, Miss., Oct. 20.
--Official information states that the Yankees are rapidly retreating to Big Black, and are being pursued by our cavalry.
On their retreat one regiment of the enemy entered Clinton and burned some houses.
In the late fight our cavalry made a very stubborn resistance.
The conduct of Gen. Wirt Adams in this engagement is highly spoken of. The loss on either side is not reported.
President Davis left this afternoon for Enterprise.
One hundred and twenty-five Yankee prisoners arrived here last night, going East.
They were captured by General Chalmers.