31Conwell, Eugene A. "On the Identification of the Ancient Cemetery at Loughcrew, Co. Meath; And the Discovery of the Tomb of Ollamh Fodhla." Proceedings of the Royal Irish Academy. Polite Literature and Antiquities 1 (1879): 88-9.
Conwell elaborated: "The apparent cross carved into the centre of the seat, as well as two others on adjoining marginal upright stones, are not to be mistaken for characters of ancient date, as they were cut for trigonometrieal purposes in the year 1836, by the men, then encamped on Sliabh-na Caillighe, and engaged in the triangulation survey of the country under Captain Stotherd and Lieutenants Greatorex and Chaytor, R. E."
In his earlier article Conwell commented, "The ornamentation and inscriptions on this megalithic seat point to its having been formerly used for some important purpose. Probably it has been a coronation or inauguration chair; or, perhaps, a seat round which councils have been held, or from which justice has been administered in far distant ages." (Conwell, Eugene A. "On Ancient Sepulchral Cairns on the Loughcrew Hills." Proceedings of the Royal Irish Academy 9 (1864-1866): 371-73.)