The origin, as well as the early history, of lighthouses is involved in much obscurity, although we learn from ancient writers that lights of some sort, or beacon fires, were used for guiding vessels or warning them of danger at least three hundred years before the Christian era. The Colossus of Rhodes and the Pharos of Alexandria are those that we first read of, but very little authentic information is to be got regarding them. At a much later date we know that sea lights for such purposes were produced by the burning of wood and coal in chauffers on coasts where they could be well seen. One such beacon fire was shown from a tower on the Isle of May, at the entrance to the Firth of Forth, from the year 1635 till 1816, when the present lighthouse was built, and is supposed to have been the first sea light on the coast of Scotland. It is not unlikely, however, that long before that date some of the most dangerous parts of the Mediterranean were lighted in a like primitive manner. The first lighthouse of any note of which we have authentic record is the Tour de Corduan, near the mouth of the river Garonne, in the south-west of France, which was founded in 1584, but not completed and lighted till 1610. On account of the style and grandeur of its architecture, it was long regarded as one of the wonders of the world, the Pharos of Alexandria having been regarded as another. Its lightroom was originally constructed for the combustion of wood in a kind of chauffer raised six feet above the floor of the lantern; but it has undergone many alterations and improvements since then, to bring it into keeping with the progressing and modern system of lighthouse illumination, which has made great strides during the last half-century. Winstanley’s wooden structure to mark the Eddystone Rock off Plymouth was probably the next work of importance in lighthouse building. It was lighted in 1698, but washed away in a storm about five years afterwards when Winstanley, who had gone there with some workmen to execute certain repairs, and the lightkeepers all perished. A subsequent lighthouse, also of wood, on the Eddystone, was accidentally burned down about fifty years later, after which Smeaton’s structure of stone was placed on it. This building stood until a few years ago, when it was seen the sea was making such serious inroads on the rock on which it was founded, that it was deemed advisable to take it down and have another built on a different part of the reef. The success of Smeaton’s lighthouse having been assured, attention was directed at the beginning of last century to the Bell Rock, which was a source of great danger to vessels navigating the East Coast of Scotland, and particularly to those sailing to or from the Firths of Forth and Tay, many of them being lost on it.