THE ENEMY RETIRE INTO FORT BOURBON AND FORT LOUIS ... THE ADMIRAL ATTACKS FORT LOUIS WITH THE BOMB-KETCH AND GUN-BOATS ... CAMP OF SEAMEN FORMED AT POINT NEGRO ... A WHARF BUILT IN THE CUL DE SAC DE COHEE, STORES AND AMMUNITION LANDED THERE ... GENERAL BELLGARDE ATTEMPTS TO CUT OFF THE COMMUNICATION BETWEEN THE ARMY AND NAVY, BUT IS BEATEN, AND HIS CAMP ON SOURIER TAKEN ... HEAD-QUARTERS ESTABLISHED ON SOURIER ... GENERAL ROCHAMBEAU SENDS AN AID DE CAMP TO THE COMMANDERS IN CHIEF ... THE NAVY MAKE A ROAD, AND DRAG THE GUNS TO THE HEIGHTS OF SOURIER. St. Pierre being now captured[15], the enemy's strength was concentrated in one point at Forts Louis and Bourbon: the latter is a work of late date, being built under the directions of the present Marquis de Bouillé, and is a well planned as well as strongly situated fortification; but in this mountainous country it is hardly possible to find any spot that may not be commanded by some neighbouring height, unless on the tops of the mountains, where it would be difficult to procure water and provisions sufficient for the subsistence of an army during a siege of any length. The town of Fort Royal is situated on a flat and swampy ground, at the foot of the hill on which is Fort Bourbon; and Fort Louis, the ancient strong-hold of this island, is on a neck of land running into the sea, and forms one side of the Carénage, an excellent harbour for shipping of all kinds.--The Admiral, from the day he anchored in Fort Royal Bay, began a heavy cannonade on Fort Louis. The Vesuvius bomb, commanded by Captain Sawyer, and under the direction of Captain Suckling of the artillery, threw shells into the fort from an eighteen-inch and twelve-inch mortar with great effect; and as soon as the evening shut in, the gun-boats, attended by several row-boats from the ships in the fleet (to assist in case of their being sunk by the enemy's shot) moved towards the mouth of the Carénage, and commenced a brisk fire on the fort, which was generally returned with equal spirit; but, from the smallness of the object, and frequently shifting their situation, they were less often hit than could have been expected, considering that they constantly were within the range of grape-shot, which fell in showers round them. Towards day-break they returned to their respective ships.--In the night of February 15th, the second and third companies of seamen, under the command of Lieutenants Miln and Ogle, left the Boyne; and, with other seamen from the fleet, the whole under command of Captain Rogers of the Quebec, landed at Cas Navire, and (occupying the posts that the troops under Colonel Myers had that day quitted, to assist in the attack on St. Pierre) formed a camp near Point Negro.--Our shipping having now, by the capture of Pigeon Island, free ingress to Fort Royal bay, most of the transports and store-ships, under convoy of his majesty's ships Santa Margarita, Solebay, Nautilus, &c.