From Charleston.
The following official dispatch was received at the War Department yesterday: Charleston, July 22.--The enemy recommence shelling again yesterday, with but few casualties on our part. We had, in the battle of the 18th inst., about one hundred and fifty killed and wounded. The enemy's loss, including prisoners was about two thousand.--Nearly eight hundred were buried under a flag of truce. Col. Putnam, acting Brigadier General, and Col. Shaw, commanding the negro regiment, were killed. (Signed,) G. T. Beauregard, Gen'l.