At various points along the lines, too, field batteries engaged the rebel batteries at a venture, and as the morning advanced this firing increased, until from eight to ten o’clock there was nothing to be heard but one continuous roar of artillery. Upwards of one hundred and fifty pieces, embracing all calibers, from the ordinary 6-pounder field piece to the heavy 10-inch Columbiad on the fortifications and the 11-inch Dahlgrens on the gunboats, united to swell the din, making a roar such as the Valley of the Mississippi never before heard. This artillery duel lasted half the forenoon, resulting, as such duels usually result, in no great loss of life. The batteries in the face of the bluff became rather too warm for occupancy, and one after another of them was abandoned, the gunners dragging their guns with them to the top of the hill. This apparently left the coast for the advance of the Federal infantry. As the lines began to emerge from the woods, the broad plain extending from the timber to the base of the hills was found to be cut up with gulleys as well as covered with abatis, and these gulleys were filled with the sharpshooters of the enemy, whose skill was soon found to be of no mean order. Beyond these, at the foot of the bluffs, was the range of rifle-pits, filled with rebel infantry. The right centre division, commanded by General Morgan L. Smith, made an effort to cross the bayou in their front. The Sixth regiment of Missouri Volunteers, under command of Lieutenant-Colonel Blood, was detailed for the advance. The enemy’s works were very strong, there being a steep bank of thirty feet high to ascend, fortified with breastworks and rifle-pits, with a heavy force drawn up in line of battle behind them. The only approach was by a road across a sand-bar in the bayou, exposed to a double cross fire from the enemy, and the only way of ascending the bank was by cutting a road. An order was received for two companies to be sent over in advance for the purpose of cutting the road—one with picks and shovels, and the other with muskets to protect the workers from the enemy’s sharpshooters in the rifle-pits over their heads. Company F, Captain Boutell, and Company K, Captain Buck, were the first to volunteer, the peril being so great that Colonel Blood was reluctant to order a detail. Their services were accepted, and the two companies of heroes went across under a most terrific fire, which left more than a tenth of their number stretched upon the sand. On getting across they immediately commenced operations on the bank, and very soon made a large excavation, almost sufficient for the purpose, when the position of the enemy’s forces and batteries were found to be such that the further prosecution of the attempt would be certain destruction to all concerned in it, without accomplishing any thing. In the mean time Lieutenant-Colonel Blood, with the balance of the regiment, had crossed over to their support, but with still greater