Lectures in natural philosophy, designed to be a foundation for reasoning pertinently, upon the petrifications, gems, crystals, and senative quality of Lough Neagh in Ireland : and intended to be an introduction, to the natural history of ... county of Ardmagh / by Richard Barton. - Barton, Richard, 1706 or 1707-1759 (printed for the author, by A. Reilly, and sold by George and Alexander Ewing, at the Angel and Bible in Dame-street, 1751)