E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Bath Stone.
A species of limestone, used for building, and found in the Lower Oolite, in Wiltshire and Somersetshire. It is easily wrought in the quarry, but hardens on exposure to the air. Called “Bath” stone because several of the quarries are near Bath, in Somersetshire.
