Nooth's apparatus, late 18th early 19th century

Invented by John Mervyn Nooth (1737-1828) in 1774, this device was made to reproduce natural spa water for medicinal uses. Following Joseph Priestley’s (1733-1804) experiments, carbon dioxide mixed with water was thought to be effective against many diseases such as scurvy. Nooth’s invention, which made carbon dioxide-rich water, was popular and sold in large numbers.