The site selected for the Douglass tower being lower than that chosen by Smeaton, the initial work was more exacting, as the duration of the working period was reduced. The rock, being gneiss, was extremely tough, and the preliminary quarrying operations for the foundation stones which had to be sunk into the rock were tedious and difficult, especially as the working area was limited. Each stone was dovetailed, not only to its neighbor on either side, but below and above as well. The foundation stones were dovetailed into the reef and were secured still further by the aid of tow bolts, each one and a half inches in diameter, which were passed through the stone and sunk deeply into the rock below.... The tower has eight floors, exclusive of the entrance; there are two oil rooms, one above the other, holding 4,300 gallons of oil, above which is a coal and store room, followed by a second storeroom. Outside the tower at this level is a crane, by which supplies are hoisted, and which also facilitates the landing and embarkation of the keepers, who are swung through the air in a stirrup attached to the crane rope. Then, in turn, come the living-room, the "low light" room, bedroom, service room, and finally the lantern. For the erection of the tower, 2,171 blocks of granite, which were previously fitted temporarily in their respective positions on shore and none of which weighed less than two tons, were used. When the work was commenced, the engineer estimated that the task would occupy five years, but on May 18, 1882, the lamp was lighted by the Duke of Edinburgh, the Master of Trinity House at the time, the enterprise having occupied only four years. Some idea may thus be obtained of the energy with which the labor was prest forward, once the most trying sections were overcome.... When the new tower was completed and brought into service, the Smeaton building was demolished. This task was carried out with extreme care, inasmuch as the citizens of Plymouth had requested that the historic Eddystone structure might be erected on Plymouth Hoe, on the spot occupied by the existing Trinity House landmark. The authorities agreed to this proposal, and the ownership of the Smeaton tower was forthwith transferred to the people of Plymouth. But demolition was carried out only to the level of Smeaton's lower storeroom. The staircase, well, and entrance were filled up with masonry, the top was beveled off, and in the center of the stump an iron pole was planted. While the Plymouth Hoe relic is but one-half of the tower, its reerection was completed faithfully, and, moreover, carries the original candelabra which the famous engineer devised.