The joiners and smiths were landed on the beacon at 7 A. M., where they continued all day, and were brought off again at 5 P. M. The Smeaton had just returned from Leith, where she had been sent for sundry materials connected with the work. The joiners and smiths were ten hours upon the rock to-day, which was the longest period they had hitherto been upon it at any one time. They now had their dinner regularly sent to the beacon, and could continue at work throughout the whole day, while the weather was sufficiently moderate to admit of the boats plying to and from the rock. To-day the water did not leave it, and it was now the seventh day since the lowest part of the foundation or site of the light-house had been seen. The Beacon being now in a comparative state of security, the Smeaton was left at the rock as a tender, and the writer sailed in the Light-house yacht, this afternoon, to inquire into the operations of the work-yard at Arbroath. After setting sail, and looking back upon the Bell Rock, it was quite astonishing to observe the change in the appearance of things, which the erection of these beams had produced. To shipping they became an excellent beacon; while they induced the greatest confidence of safety in all who were actively engaged in this work. The vessel anchored in the bay of Arbroath, at a late hour, when the writer landed, for the first time since the commencement of the working season, on the 17th of August; after having been between four and five weeks afloat. [Sidenote: Tuesday, 29th.] This morning was occupied in going over the work-yard with Mr David Logan, clerk of works, who had charge of the hewing department. The first entire course of the building was now partly laid upon the platform: a few stones of the second course, and several of the higher courses, were also in progress. But from the backward state of the quarries in the production of stones of large dimensions, it was found necessary to make some additional exertions for procuring a more regular supply, and a person was therefore dispatched to the quarries of Aberdeen and Mylnefield for this purpose. [Sidenote: Sails again for the Bell Rock.]