In order to distinguish Pladda Light-house from the light upon the Promontory of Kintyre on the one hand, and that upon the island of Cumbrae, further up the Firth of Clyde, and also from the Copeland light on the Irish coast, it was found necessary, in the course of the year 1791, to erect a small Light-room, immediately under the principal light, that, by shewing two distinct lights at this station, the one 20 feet higher than the other, it might be distinguishable from those above alluded to. This small light-room being rather of a temporary construction, the Board have it in view to erect one upon a more efficient plan, when certain repairs which are in contemplation at Pladda shall be made. [Sidenote: Annual supply and inspection of the Lights.] The Northern Light-houses being situated in parts of the country remote and inaccessible, it became necessary to arrange some systematic and proper plan for managing the ordinary business of the Board, which, at this time, had only one stated meeting, held by act of Parliament in the month of July annually. A special meeting was accordingly convened by the Secretary, in the month of March 1791; at which there were present, the Lord Advocate of Scotland; the Lord Provost of Edinburgh; the Sheriff of Aberdeen; the Sheriff of Renfrew; and the Sheriff of Orkney, Mr Charles Hope, now Lord President of the Court of Session. This meeting having taken into consideration the proper mode of supplying the light-houses, and of attending to the conduct of the light-keepers, it was resolved, That the engineer should charter a vessel annually, to carry a full complement of stores and other necessaries for the use of the lights, and such artificers, implements and materials as might, from time to time, be found necessary for making repairs at the light-houses; and also, that the engineer should annually visit each light-house, and report upon the state and condition of the buildings, and upon the conduct of the respective light-keepers in keeping the lights, and in the management of the stores and appurtenances committed to their charge; with power to dismiss them for neglect of duty. [Sidenote: Light-keepers’ Salary.] The light-keepers already engaged in the service, had been verbally informed by the engineer, that they would be paid L. 30 of yearly salary; and this meeting having before it a range of salaries paid to light-keepers both in England and Scotland, varying from L. 20 to upwards of L. 70, it was resolved, That in ordinary situations, the salary of the light-keepers in the service of the Northern Light-houses should be L. 30 _per annum_, with a piece of garden-ground and pasture for a cow, and a sufficient quantity of fuel for the use of their families. [Sidenote: First voyage of the Engineer.] [Sidenote: Light-house keeper dismissed the service.]