On the evening of the twenty-seventh the British moved forward in force, drove in the American advance lines, and occupied Chalmette's plantation, one mile above Laronde's. During the night they began to establish several batteries along the river. At dawn of day on the twenty-eighth they advanced in columns on the road, preceded by several pieces of artillery, some playing upon the Louisiana and others on the American lines. The ship's crew waited until the columns of the enemy were well in range, when they opened upon them a destructive fire, which silenced their guns. While this oblique fire fell upon the flank of the British, the batteries on the American line answered them from the front with much effect. One shot from the Louisiana killed fifteen of the enemy's men. Some of his guns were dismounted, and he was driven from several of his batteries. In seven hours' cannonading the ship fired eight hundred shot. The enemy threw into the American ranks many Congreve rockets, evidently misled in the hope that these ugly-looking missiles would strike terror to the ranks of our troops. These soon learned that they were not so dangerous as they appeared. The infantry this day did not engage in more than heavy picket skirmishing, and in checking the demonstrations of the enemy on our lines. This movement all along the line was evidently a feint in force, to draw from Jackson's army information as to the powers of resistance it might offer and to ascertain its most vulnerable point of attack. The loss of the British this day was estimated at two hundred; that of the Americans much less, as they were mainly sheltered from the enemy's fire. There were nine killed and eight wounded. DEFENSES ON THE WEST BANK OF THE RIVER. Realizing that the enemy might suddenly throw a force across the river, and by a flank movement up the right bank gain a position opposite the city, from which, by shot and shell, he might compel a surrender, Jackson sent Major Latour, chief of his engineer corps, to the west side, with orders to select a position most suitable for a fortified line in the rear of General Morgan's camp. Bois-Gervais Canal, three miles below New Orleans, was fixed upon, and one hundred and fifty negroes from the plantations near at once set to work. In six days they completed the parapet, with a glacis on the opposite side.