In the 47th plate we have shown the ground-plot upon which it is formed, and a section of the work; whence we may readily observe that the design is simple, but admirably contrived for its use and purpose: the base is octagonal without, within a square; but the sides of the square and octagon are equal, viz. fifteen Roman feet, which reduces the wall to the thickness of ten feet. In this manner it was carried up to the top, which was much higher than at present; but it retires inward continually from all sides, with much the same proportion as an Egyptian _obelus_. Upon four of these sides there are windows narrow, handsomely turned with a semi-circular arch of Roman brick six foot high, so that the outside of it appears as in our 46th plate. The door to it is on the east side, about six foot wide, very well turned over head, with an arch made of a course of Roman brick and stone alternately, fourteen foot high. All the stones of this work are of a narrow scantling; and the manner of the composure, throughout, is perfectly the same with that lately described at Richborough castle: there are first two courses of this brick, which is level with the bottom of the windows; then seven courses of hewn stone, which mount up to the top of the windows; then two courses of brick, seven of stone alternately, to the top; every window by this means reaching to a stage or story. There are five of these stages left: the windows are visible enough to a discerning eye, though some be stopt up, others covered over, others have modern church-like windows of stone put in. I suppose the inside was intirely filled up with a stair-case: the height of what is left is forty foot; I believe there was twenty foot more originally; and the whole number of windows on a side was eight. This building was made use of as a steeple, and had a pleasant ring of bells in it, which Sir George Rook procured to be carried away to Portsmouth. Since then the office of the ordnance, under pretext of savingness, have taken away the lead that covered it, and left this rare piece of art and masonry to struggle with the sea, air and weather. Mr. Degg gave me a coin of Dioclesian, found here. The Erpinghams arms are patched up against one side of the _Pharos_, being two bars and a canton; so that I suppose it was repaired in Henry the Fifth’s time, lord Erpingham then warden of Dover castle. In the Roman castle here the Tungrican soldiers had their station. I have heard there is another such _Pharos_ at St. Andrew’s in Scotland.[121]