A Sweating Tub for Treating Syphilis

The engraved titlepage of a Latin comedy, Cornelianum Dolium, by "T. R." published in 1638, shows a man standing in a sweating tub; the fumes of cinnabar or mercuric sulphide were thought to cure venereal disease. The top inscription reads: "Farewell, O Venus and Cupids"; the lower, "I sit on the throne of Venus, I suffer in the tub."