By LAWRENCE KEPPIE With contributions by G.B. Bailey and P.V. Webster INTRODUCTION A t the beginning of July 1775 a Roman bath-house was accidentally discovered on the northwestern slope of Golden Hill, Duntocher (FIGS 1-2), and its remains investigated. Sitedrawings were made and some finds sent for identification to the Society of Antiquaries of London. Though, an account of the work was published by Richard Gough in his 1789 edition of Camden's Britannia, 1 the excavation has been largely forgotten. The present assessment draws upon Gough's and other contemporary accounts, and upon unpublished material, especially the voluminous correspondence between Richard Gough and the Edinburgh bibliophile George Paton, now held by the National Library of Scotland, the Minute Books of the Society of Antiquaries of London, and the Gough Papers preserved in the Bodleian Library, Oxford. Also presented here will be an account of the chance rediscovery of the bath-house in 1978, and a geophysical survey undertaken, at the author's request, by the Department of Archaeology, University of Glasgow, in 2001. THE EXCAVATION OF 1775 As far as possible this account follows a chronological sequence in its citation of the sources, but it is helpful to begin with the 'eye-witness' report, published ten years later, by London bookseller John Knox, son of a vintner in nearby Old Kilpatrick: 2 Near the western extremity of this wall, at Duntocher, a countryman, in digging a trench upon the declivity of a hill, turned up several uncommon tiles, which exciting the curiosity of the peasantry in that neighbourhood, they broke in upon an entire subterraneous building, from which they dug out a cart load of excellent tiles. Being then, 1775, upon my return from the Highlands, and hearing of the circumstance, I repaired immediately to the place, and by threats and promises put a stop to all further proceedings, in the hope that some public spirited gentlemen would take off the surface, and explore the whole plan of the building, without demolishing it. The tiles were of 7 different sizes, the smallest being 7, and the largest 21 inches square. They were from 2 to 3 inches in thickness, of a reddish colour, and in perfect sound condition. The lesser ones composed several rows of pillars, which formed a labyrinth of passages, of about 18 inches high, and the same in width; the largest tiles being laid over these pillars, served as a roof to support the earth on the surface, which was two feet deep, and had been plowed through time immemorial. The building was surrounded by a subterraneous wall of hewn stone. Some professors in the university of Glasgow, and other gentlemen, having unroofed the whole, discovered the appearance of a Roman hot-bath. The passages formed by rows of pillars were 1