Official Dispatch from Knoxville.
The following official dispatch from Gen. Bragg was received at the War Department yesterday:"We hold all the roads leading into Knoxville except the one between the Holston and French broad rivers. Gen. Jones's cavalry might close that. The enemy's cavalry is almost broken up, and Wheeler has cut off his train from Cumberland Gap to Knoxville.
Braxton Bragg, Gen'l."
The road mentioned in Gen. B.'s dispatch leads from Knoxville eastward to the Warm Springs, in Western North Carolina, and thence to Ashville, N. C. Over this road Burnside has heretofore sent several raiding parties into Western North Carolina, one of which was met and repulsed at the Warm Springs by Gen. Vance.