By this melancholy list we find, that no fewer than sixteen vessels have, in the course of nine years, been either lost or stranded on the Carr Rocks, being almost at the rate of two wrecks in the year. From this alarming state of things, it was thought advisable to bring the subject under the notice of the Commissioners of the Northern Light-houses, when the Board immediately ordered a Floating-buoy, of a large size, to be moored off the Carr. The moorings for this buoy were laid down, upon the 18th of September 1809, in 10 fathoms water, at the distance of about 200 fathoms, in a north-eastern direction, from the rock. But, owing to the heavy swell of sea, and the rocky sandstone bottom on this part of the coast, it was found hardly possible to prevent the buoy from occasionally drifting, even although it had been attached to part of the great chain, made from bar-iron, measuring 1½ inch square, with which the Bell Rock floating light had been moored for upwards of four years, without injury. The moorings of the Carr Rock-buoy, from the continual rubbing upon the sandstone bottom, were worn through with the friction in the course of ten months; and during the four years which it rode here, though regularly examined and replaced, in the proper season of the year, it was no less than five times adrift, to the great inconveniency and hazard of shipping. [Sidenote: A Beacon of masonry is resolved on.] Under these circumstances, the Light-house Board was induced to erect a Beacon of masonry upon the Carr Rock itself, instead of the Floating-buoy. This work was commenced in the month of June, in the year 1813, under the direction of the writer. The stone for this building was taken from an excellent sandstone quarry on the property of Lord Kellie, near the mouth of Pitmilly Burn: But, owing to the smallness of the rock, the depth of water upon it, and the exposed nature of the situation, the work was afterwards attended with very great difficulty. [Sidenote: Dimensions of the Carr Rock.] The length of the Carr Rock, from south to north, measures 75 feet; but its greatest breadth, as seen at low-water of spring-tides, being only 23 feet, it was found to be impracticable to obtain a base for a building of greater diameter than 18 feet. Such also was the fractured and rugged state of the surface of this rock, that it became necessary to excavate part of the foundation-pit of the building to the depth of seven feet. The difficulties of this part of the work were also greatly increased, owing to the foundation, on the eastern side, being under the level of the lowest tides: so that it became necessary to construct a coffer-dam. Part of this coffer-dam it was necessary to remove, and carry ashore, after each tide’s work; and on the return of the workmen at ebb-tide, a considerable time was unavoidably occupied in fixing the moveable part of the coffer-dam, and in pumping the water out of the foundation-pit.