Camphene oil was invented in the 1820s as a cheaper alternative to whale oil. Also known as “burning oil,” it was made by mixing freshly distilled turpentine with alcohol. By the late 1850s, whale oil cost $1.50 a gallon, while camphene oil sold for 60 cents. Camphene oil, however, was dangerously explosive and experts warned against the use of it for home use. In 1857, Godey’s Lady’s Book warned its readers that it was “suicidal” to use camphene lamps in the house.