It was now about 4 p.m., and Burnside’s corps was massing to attack on our right. A heavy column was advancing up the Boonsborough pike, and I ordered up some 200 or 300 men, under command of Col. G. T. Anderson, to the hill already described, commanding Sharpsburg, but they were exposed to an enfilade fire from a battery near the church, on the Hagerstown pike, and compelled to retire to another hill. About 30 men, under Lieutenant-Colonel [W. H.] Betts, Thirteenth Alabama, of my division, remained as supports to my division batteries, under Jones, [R. A.] Hardaway, and Bondurant. The Yankee columns were allowed to come within easy range, when a sudden storm of grape and canister drove them back in confusion. Betts’ men must have given them a very hot fire, as Burnside reported that he had met three heavy columns on the hill. It is difficult to imagine how 30 men could so multiply themselves as to appear to the frightened Yankees to be three heavy columns. On our extreme right, however, the Yankees had been more successful. They had crossed the Antietam, and were driving our men before them. Our forces (supposed to be A. P. Hill’s or D. R. Jones’) had fallen back nearly to the road in rear of Sharpsburg, and the Yankees advanced in fine style to the crests commanding it. A few hundred yards more and our only line of retreat would be cut off. I called Carter’s attention to this imposing force of Yankees, and he opened upon them with three guns, aided by two, I think, of the Donaldsonville Artillery. The firing was beautiful, and the Yankee columns (1,200 yards distant) were routed by this artillery fire alone, unaided by musketry. This is the only instance I have ever known of infantry being broken by artillery fire at long range. It speaks badly for the courage of Burnside’s men.