S. F. Peckham, The American Cyclopædia (1879)
“ No more than 5 per cent. will render kerosene inflammable at all ordinary temperatures, and liable to produce an explosion at any time when the vapors become mingled with air in proper proportion. These properties that render naphtha dangerous are inherent in the constitution of the substance itself, and no human art can change them. Yet there are those who pretend to invent non-explosive naphtha stoves and lamps, a thing that never was and never can be invented; there are those who manufacture and sell kerosene containing naphtha, and others who purchase the two, mix them, and sell them. ”
