The day's excursion closed with an inspection of a cromlech at Presaddfed [Presaddfed Burial Chambers [Map]]. It has originally consisted of two chambers with openings facing the east. The larger and more perfect chamber consists of six supporters so arranged as to give almost an hexagonal chamber. The capstone is at present supported at one end entirely on the narrow end of one of the uprights; and in case this slight support should, from the effect of weather, give way, this very perfect chamber would be destroyed. A substantial pier built underneath the slab would be the only means of saving it; and it is to be hoped that some precaution of the kind will be taken to preserve one of the finest monuments of the kind in the island. It has been already engraved and published.