The British had been so roughly handled that they were unable to advance for three or four days, until the entire army came up. When they did advance, it was only to find that Jackson had made good use of the time he had gained by his daring assault. He had thrown up breastworks of mud and logs from the swamp to the river. At first the British tried to batter down these breastworks with their cannon, for they had many more guns than the Americans. A terrible artillery duel followed. For an hour or two the result seemed in doubt; but the American gunners showed themselves to be far more skilful than their antagonists, and gradually getting the upper hand, they finally silenced every piece of British artillery. The Americans had used cotton bales in the embrasures, and the British hogsheads of sugar; but neither worked well, for the cotton caught fire and the sugar hogsheads were ripped and splintered by the roundshot, so that both were abandoned. By the use of red-hot shot the British succeeded in setting on fire the American schooner which had caused them such annoyance on the evening of the night attack; but she had served her purpose, and her destruction caused little anxiety to Jackson.