As the commencement of works of masonry, requiring stones of large dimensions, is unavoidably tedious, especially in the collecting of materials, we shall at present only notice, that the Light-house Board having resolved on the use partly of granite and partly of sandstone, for the erection at the Bell Rock, measures were duly taken for procuring a supply of the former from the quarry of Rubeslaw near Aberdeen, and of the latter from Mylnefield near Dundee. But, instead of following out this part of our subject in its order, we shall first proceed to a detail of the operations _afloat_, as they may be termed, or of the works upon the rock itself, during the season of 1807,--particularly of the erection of the principal beams of the beacon-house, or temporary residence for the artificers on the rock, and of the progress made in the preparation of the foundation or site of the main building. [Sidenote: Sloop Smeaton.] We therefore observe, that a vessel had been built at Leith, in the course of the spring, expressly for the Bell Rock service, to be employed as a tender for the floating-light, and as a stone-lighter for the use of the work. This vessel was launched in the month of June; she measured 40 tons register, was rigged as a sloop, and fitted in all respects in the strongest manner, to adapt her as much as possible for the perilous service in which she was to be employed. She was called The Smeaton,--a name which the writer had great pleasure in suggesting, as a mark of respect for the memory of the celebrated engineer of the Eddystone Light-house, whose narrative was to become a kind of text-book for the Bell Rock operations. The Smeaton was ready for sea in the beginning of August, and reached Arbroath upon the 5th day of that month. Arbroath being the most contiguous harbour to the Bell Rock, naturally pointed out itself as the proper place for establishing the works, and preparing the materials, before shipping them for the rock. The writer had, accordingly, been here for some time, making the necessary preparations; and when the Smeaton arrived, he found himself in a condition for commencing the operations, in a systematic manner, upon the rock itself. [Sidenote: The Positions of the Light-House and Beacon fixed on.]