In speaking of the beginning of Monday's battle, I mentioned Major-General Lew. Wallace's opening the ball at seven o'clock, by shelling with enfilading fires a Rebel battery. A few shots demonstrated to the Rebels that their position was untenable. The instant Sherman came in to protect his left, Wallace advanced his infantry. The Rebel battery at once limbered up and got out of the way. The advance had withdrawn the division from Sherman. Making a left half-wheel, to get back into the neighborhood of our line, they advanced some two hundred yards, which brought them to a little elevation, with a broad, open stretch to the front. As the division halted on the crest of the swell, there passed before them a rare vision. Away to the front were woods. Through the edge of the timber, skirting the fields, the head of a Rebel column appeared, marching past in splendid style on the double-quick. Banner after banner appeared; the "stars and bars" formed a long line, stretching parallel with Wallace's line of battle. Regiment after regiment followed on, the line lengthened, and doubled and trebled; the head of the column was out of sight, and still they came. Twenty regiments were counted passing through these woods. The design was plain. The Rebels had abandoned the idea of forcing their way through our left, and now the manifest attempt was to turn our right. Batteries were ordered up--Thompson's and Thurber's--and the whole column was shelled as it passed. The Rebels rapidly threw their artillery into position, and a brisk cannonading began. After a time, while the fight still rested with the artillery, the Rebels opened a new and destructive battery to the right, which our men soon learned to know as "Watson's Louisiana Battery," from the marks on the ammunition-boxes they forced it from time to time to leave behind. Batteries, with a brigade of supporting infantry, were now moved forward over open fields under heavy fire, to contend against this new assailant. The batteries opened, the sharpshooters were thrown out to the front to pick off the Rebel artillerists, the brigade was ordered down on its face to protect it from the flying shell and grape. For an hour and a half the contest lasted, while the body of the division was still delayed, waiting for Sherman. By ten o'clock Sherman's right, under Colonel Marsh, came up. He started to move across the fields. The storm of musketry and grape were too much for him, and he fell back in good order. Again he started on the double, and gained the woods. The Louisiana Battery was turned; Marsh's position left it subject to fire in flank and front, and it fled. The other Rebel batteries at once did the same; and Wallace's Division, up in an instant, now that a master move had swept the board, pushed forward. Before them were broad fallow fields, then a woody little ravine, then corn-fields, then woods.