Flames from the lips may be produced by holding in the mouth a sponge saturated with the purest gasoline. When the breath is exhaled sharply it can be lighted from a torch or a candle. Closing the lips firmly will extinguish the flame. A wad of oakum will give better results than the sponge. Natural gas is produced as simply. A T-shaped gas pipe has three or four gas tips on the cross-piece. The long end is placed in the mouth, which already holds concealed a sponge, or preferably a ball of oakum, saturated with pure gasoline. Blowing through the pipe will force the gas through the tips, where it can be ignited with a match. It will burn as long as the breath lasts. In a London periodical, The Terrific Record, appears a reprint from the Mercure de France, giving an account of experiments in Naples which led to the discovery of the means by which jugglers have appeared to be incombustible. They first gradually habituate the skin, the mouth, throat and stomach to great degrees of heat, then they rub the skin with hard soap. The tongue is also covered with hard soap and over that a layer of powdered sugar. By this means an investigating professor was enabled to reproduce the wonders which had puzzled many scientists. The investigating professor in all probability, was Professor Sementini, who experimented with Lionetto. I find an account of Sementini's discoveries in an old newspaper clipping, the name and date of which have unfortunately been lost: Sementini's efforts, after performing several experiments upon himself, were finally crowned with success. He found that by friction with sulphuric acid deluted with water, the skin might be made insensible to the action of the heat of red-hot iron; a solution of alum, evaporated till it became spongy, appeared to be more effectual in these frictions. After having rubbed the parts which were thus rendered in some degree insensible, with hard soap, he discovered, on the application of hot iron, that their insensibility was increased. He then determined on again rubbing the parts with soap, and after that found that the hot iron not only occasioned no pain but that it actually did not burn the hair. Being thus far satisfied, the Professor applied hard soap to his tongue until it became insensible to the heat of the iron; and having placed an ointment composed of soap mixed with a solution of alum upon it, burning oil did not burn it; while the oil remained on the tongue a slight hissing was heard, similar to that of hot iron when thrust into water; the oil soon cooled and might then be swallowed without danger. Several scientific men have since repeated the experiments of Professor Sementini, but we would not recommend any except professionals to try the experiments. Liquid storax is now used to anoint the tongue when red-hot irons are to be placed in the mouth. It is claimed that with this alone a red-hot poker can be licked until it is cold.