A very dreadful circumstance of this kind happened the last day of September, 1780; at which time the sea arose to the amazing height of twenty-one feet perpendicular above its usual surface, and its billows broke upwards of one hundred yards from the common shore. It destroyed several houses in front of the beach, drove several small vessels from their anchors, and carried them up into the town; other vessels foundered, or were dashed to pieces in the night-time; the dead bodies of the crews, with the pieces of the vessels, were driven on shore, and the morning of next day exhibited the most shocking spectacle of its unbounded fury. The fortifications of Roseau are, Young’s Fort, Melville’s Battery, Bruce’s Hill Batteries, and Fort Demoullin. Young’s Fort is just opposite the Government-house, from the front wall of which it is separated only by the highway. It is well mounted with cannon, has a powder magazine, an arsenal for small arms, and commodious barracks for the officers and soldiers; but owing to its bad construction, only two or three of the cannon in it will bear on any particular object; and it is, besides, entirely under command of all the other batteries of the town on the hills above it. Melville’s Battery, as before observed, was the principal place from whence the most material service was done, in preventing the French from entering Roseau on the 7th of September, 1778. This battery has some very heavy cannon on it, but the works of it are all gone to decay, and it is at present wholly neglected. Bruce’s Hill, which is just above Roseau, has several fine batteries, with one for mortars, commodious barracks, and several blockhouses. It had a fine stone cistern in the time of the French, but which, being built by them, they thought proper to destroy and blew it up, a few days before they evacuated the island, thereby rendering it useless. However, the aqueduct, by which it was supplied with water, has been since discovered, and is of great use to that fortification, which is, upon the whole, well calculated for the defence of the town, when attacked only from the sea; but being under the command of other heights above it, it would soon be rendered untenable, was it to be attacked on the land-side, as was the case the last war. Demoullen’s Hill fort is also well mounted with cannon, and is otherways well provided for the defence of the town; but it is subject to the same inconveniences as the other fortifications, being under the command of the heights above it. These are the chief fortifications in Dominica at present, except that at Cashacrou, which is rather a signal post; the other batteries on the sea-coasts, at a distance from Roseau, being of small importance for the defence of the island, save only the works now raising at Prince Rupert’s Bay.