Smeaton tells us that when the work had proceeded so far as to afford a level platform, the pleasure he took in it, and the novelty of the thing, led him to walk to and fro upon it with much complacency. But making a false step, and not being able to recover himself, he tumbled over the brink of the work down among the rocks on the west side. The tide had then retreated, so that no serious result happened, but in his fall he dislocated his thumb, and as no medical aid could be procured, he set it himself, and then returned to his work. It was more than six months, however, before he recovered the full use of his thumb.
Owing to very boisterous weather, and repeated losses of the necessary materials left on the rock, the seventh course was not laid until the 7th of September. But Smeaton had the satisfaction to find that all the work actually completed, stood the utmost severity of the weather unmoved. At this time the sea became so calm that the work proceeded rapidly, and for three days in succession the top of the work was not wetted. The eighth course was completed on the 13th, but the weather again becoming unfavourable, the ninth was not finished until the 30th, and here Smeaton found it desirable to close the operations for this year.
The ensuing winter was of so stormy a nature as severely to test the strength of the work at the Eddystone. Smeaton went early in the spring to view it, and says, 'I was much surprised, notwithstanding what had been reported of the soundness of the work, to find it so perfectly entire, for, except a small spawl which had been washed from the rock itself, the whole did not seem to have suffered a diminution of so much as a grain of sand since I left it on the 1st of October: on the contrary, the cement, and even the grouted part, appeared to be as hard as the stone itself, the whole having become one solid mass, and, indeed, it had quite that appearance, as it was covered with the same coat of sea-weed as the rock, the top of the work excepted, which was washed clean and white.'
Various disasters to the vessels, moorings, &c. near the rock retarded the work in the spring of 1758. It was not till the 10th of July that the eleventh course was finished. Twelve days afterwards the twelfth course was laid down. After this the work went on better, so that on the 8th of August the fourteenth course was completed, and with it what was called the fundamental solid. From hence begins the building also called the Solid, which includes the passage from the entry-door to the well-hole for the stairs. It was now necessary for the sake of the well-hole to omit the centre-stone. The four stones surrounding the centre were therefore fastened together by what are called hook-scarf joints, so as to compose, in effect, one stone. Means were also taken to prevent them from shifting, or being lifted out of their position.