From the Southwest. Lynchburg, Sept. 21.
--The enemy, 1300 strong, entered Bristol on Saturday, meeting with feeble resistance.
They destroyed the new commissary building, containing about 100 barrels of flour and a small quantity of bacon, and gutted several stores.
About three miles this side of Bristol they destroyed a bridge and tore up a few rails and then went back.
There is no force threatening Saltville.
Gen. Jones whipped the enemy at Zollicoffer, ten miles west of Bristol, on Sunday, and it is reported that Gen. Williams, being in their rear, had captured the entire retreating force, said to be 2400.
The last rumor needs confirmation, but Jones's victory is doubtless true.