The mercury pills stored in this jar probably made to a recipe developed by Augustin Belloste (1654-1730). Mercury was the traditional remedy for syphilis and the demand for Belloste’s recipe made his pills very successful. The family became rich from the profits. The recipe remained a secret and was still available in the early 20thC. The pills were also used to treat gout, and kidney and bladder stones. Unfortunately, the mercury in the pills slowly poisoned the patients.