28th.--They reached Camp Izard and fired the field piece, as a signal for Gen. Eustace and Colonel Lindsay: it was not answered by either, but was soon responded to by the Indians’ rifles from the opposite bank of the river, giving notice that their “voice was still for war.” An encampment was formed, and preparations made for constructing a bridge; the work was continued through the night. In the morning orders were issued for a march. The Ouithlacouchy, here thirty-five yards wide, was crossed, the troops and waggons passing over in two flat boats, built by Gen. Clinch for the purpose, at Fort Drane, and drawn to the river on wheels. The Louisiana Volunteers with a small party of Regulars, were the first to cross the river. A breastwork was constructed without any molestation from the Indians. In the evening they fired on the rear while crossing the river; but the two field pieces, which were placed on the banks to cover the passage, were quickly brought to bear on them, and soon sent them to the right about. They continued, however, to fire a few dropping shots from a considerable distance, which did no mischief. On the 30th, the army reached the Black Swamp, the great hiding place of the Savages, and no place could be better chosen for such a purpose. It is nearly twelve miles square, and is full of ponds, rivers and hammocks. A halt was ordered, and a detail of three hundred men, was left to guard the baggage. The main body advanced into the Swamp, in pursuit of the enemy, who had been already seen. They had not marched far, when they gave chase to two Indians, and pressed them so hard, that they were forced to throw away their packs, and escape with their rifles only. The troops marched six miles into the Swamp, carrying with them nothing except one day’s rations. They surrounded and scoured the hammocks on the way, and encamped towards evening. Soon after, several Indians were observed at a short distance from the camp, making signs for some of our people to go out and talk with them. The Interpreter and a few friendly Indians were sent for the purpose. The enemy begged a peace, requesting General Scott to remain quiet for a few days, until the return of Powell from the Gulf of Mexico. The General would not listen to the proposal, but marched the next morning (31st,) and attacked them in their hammock, whilst preparing breakfast. They fled precipitately, abandoning their provisions, which were speedily devoured by the almost starving troops. The pursuit was continued, firing occasionally as the Indians appeared crossing from one hammock to another, until at length after wading a pond three feet deep, the army came to a hammock thicker than the rest, where the enemy had halted, thinking themselves more secure, and from which they poured a well directed volley on our men. The fire was answered from the whole battalion. The regulars were ordered to charge into the hammock, hut evinced very little willingness to obey.