New Orleans is situated on the left bank of the Mississippi, here about 800 or 1,000 yards across; below the town are great marshes, covered with reeds six or seven feet high. While on the river bank runs a strip of firm ground, varying from one to three miles across, and mostly under sugar plantations. From this the marsh extends six or seven miles to the shores of Lake Pontchartrain, which communicates by Lake Borgne with the sea.

It was deemed impossible to approach New Orleans by the Mississippi, as well because very strong works existed at its mouth, and on the way up to the city, as because the course of the river is so tortuous that no wind would have carried the ships up, without considerable delay. It was therefore resolved to disembark the troops on the shore of one of the lakes. But it was ascertained that the Americans, already cognisant of the intended invasion, had placed gun-boats on these lakes to prevent the landing. The previous destruction of these was therefore necessary; and this was effected in very fine style and in a very short time by the boats of the fleet under Captain Lockyer.

On the 15th the Riflemen were moved from the ships of war into brigs, which drew less water, but in which they were so crowded as to be unable to lie down or almost to turn. But even these were too deep for the shoal waters of the lake, and they were transferred into long boats, from which they were landed on the 19th on the Île au Poix (or as our men called it Pearl Island), formed by the branches of the Pearl river. The weather in moving from the ships to the island was very bad; and on arrival at it, it was found to be a perfect desert. Nothing but reeds grew on it, except a few scrubby pine-trees at one end. To add to their discomfort, a severe frost came on at night; the men were without shelter of any kind, and they suffered severely. And as all their supplies had to be furnished from the fleet, want of provisions was added to their other hardships.

On the 22nd the Battalion (which formed part of the advance under Colonel Thornton) embarked in boats, and about two o’clock pushed off to land on the mainland. The place decided on for their disembarkation was at the head of a creek called Bayou Catalan in Lake Borgne. The distance was between thirty and forty miles, and the men were so crowded in the boats that they could not move. They did not reach the entrance to the creek till after dark. As a picquet of the enemy was posted about half a mile up the creek, Captain James Travers, with his company, were placed in small boats and pushed forward. The picquet was stationed at some huts; near these Travers landed, and having moved his men to both ends of the huts, prevented the escape of the picquet, which was secured without a shot being fired. This was admirably effected; and was a most important service. For had this picquet escaped or raised an alarm, the landing would have been opposed. And this would have been a serious check; for on the morning of the 23rd, when the leading boat reached the narrow part of the Bayou it was found impracticable to ascend higher, and the boats being drawn up one after another the men passed over them as a bridge. This of course was a very slow operation, and one which, if opposed, would have been very difficult. The Battalion disembarked about an hour after daylight, having been upwards of sixteen hours cramped in the boats.

As soon as the whole advance were on shore, they marched, Travers’ company leading; and to give their force as imposing an appearance as possible, and to scour the country, they advanced with extended files. They moved in this order through a wood which skirted the swamp on this side, and as soon as they had cleared it, came upon a house, surrounded with out-buildings and huts for slaves, belonging to a M. Villeroy. The Battalion advancing at the double, took possession of it; and in this and some neighbouring houses took about thirty prisoners, and a good many stand of arms, belonging, as was supposed, to the local militia. Unhappily M. Villeroy escaped, and probably gave information to the enemy; this, before the night was over, entailed very disastrous consequences. The Battalion then advanced, and turning to the right, marched for about a mile on the road to New Orleans, and then bivouacked in a green field in quarter distance column.

The road ran near the river’s bank which was on the left; and an embankment about three or four feet high was thrown up to keep the overflow of the river from the cultivated ground, here about three-quarters of a mile or a mile broad; beyond this was a strip of wood, the way through which was, in fact, impracticable, the ground under the trees being wet and swampy. The cultivated land was much intersected with wet ditches, and divided by strong wooden palings five feet high.

On arriving at the bivouack Travers’ company, which had formed the advanced guard on the march, was pushed forward about a mile to the front, on the main road, as a picquet.

The troops halted somewhat after mid-day; and as the men had been without provisions since the morning before, they began as soon as dismissed to cook. While doing so, between three and four o’clock, firing was heard in the front from the picquet; it turned out to be in consequence of an American officer, attended by some mounted men, riding up to the picquet to reconnoitre. However, the Riflemen saluted him with a few shots, one of which wounded him, and another killed the horse of one of the party, on which they retired, getting off the wounded officer with them.

At nightfall, Captain Hallen’s company relieved Travers at the advanced picquet; and the men of the rest of the Battalion, being much fatigued by their uncomfortable night in the boats, their tedious landing, and their march, lay down in bivouack. They had torn down some of the palings dividing the fields, and had made good fires which then burned brightly. While they were thus, as they fancied, secure, a schooner dropped down the Mississippi, and guided by the light of their fires, opened a heavy cannonade upon them with great effect. The men of course were aroused and dispersed; but no shelter could be found, in this dead flat, except by crouching under the embankment by the riverside. Hallen had seen the schooner pass his post and had sent a man off to alarm the Battalion; but the schooner having the current of the river in her favour reached the bivouack before the Rifleman could get there.

While in this state of alarm from the sudden cannonade from the schooner, heavy and continued firing was heard in the front. A body of 5,000 Americans had attacked Hallen’s picquet, detaching 1,500 men through the wood to turn the right of the troops. Nobly Hallen kept them at bay; but being himself wounded, and his picquet threatened by such overpowering odds, reinforcements advanced from the Battalion. Meanwhile the enemy made way through the garden of a house on the right, where a picquet of the 85th had been placed; and the night being very dark, a hand to hand fight took place. Every deception was practised by the enemy; and having discovered (from prisoners probably made in the mêlée) the regiments opposed to them, they would call out, ‘Come on my brave ninety-fifth (or eighty-fifth),’ and then make those who advanced prisoners.