...upon the enemy's position at Elk Water, which a portion of his forces had surrounded. But regrets were unavailing now; danger was imminent in another quarter. Learning by couriers of the union of Rosecrans and Cox, and of their advance upon Wise and Floyd, Gen. Lee decided at once to reinforce the Southern armies on the line of Lewisburg. He reached Gen. Floyd's camp at Meadow Bluff, on the 20th of S...