A Mask of Flame
Take six parts of oil of olives and one of phosphorus, suffer them to digest well together, and preserve the solution, which, in the dark, will become luminous. An experiment that is considered amusing may be performed by closing the eyes and lightly passing a sponge, dipped in this solution, over the face and hands, which will then, in the dark, appear covered with a light bluish flame. This trick is not at all dangerous.