Title: A letter to Sir John Sinclair, Bart. concerning the virtues of the muriatic acid, or spirit of sea-salt, in the cure of putrid diseases
Subjects: Hydrochloric acid, Vaccination, Therapeutic use, Sea salt, Salt, Smallpox, Sodium Chloride - therapeutic use, Sinclair, John, Sir, 1754-1835, Disease Outbreaks, Sodium Chloride