Another formula is given by Griffin, as follows: 1 bar ivory soap, cut fine, 1 pound of brown sugar, 2 ounces liquid storax (not the gum). Dissolve in hot water and add a wine-glassful of carbolic acid. This is rubbed on all parts liable to come in contact with the hot articles. After anointing the mouth with this solution rinse with strong vinegar. No performer should attempt to bite off red-hot iron unless he has a good set of teeth. A piece of hoop iron may be prepared by bending it back and forth at a point about one inch from the end, until the fragment is nearly broken off, or by cutting nearly through it with a cold chisel. When the iron has been heated red-hot, the prepared end is taken between the teeth, a couple of bends will complete the break. The piece which drops from the teeth into a dish of water will make a puff of steam and a hissing sound, which will demonstrate that it is still very hot. The mystery of the burning cage, in which the Fire King remains while a steak is thoroughly cooked, is explained by Barnello as follows: Have a large iron cage constructed about 4 x 6 feet, the bottom made of heavy sheet iron. The cage should stand on iron legs or horses. Wrap each of the bars of the cage with cotton batting saturated with oil. Now take a raw beefsteak in your hand and enter the cage, which is now set on fire. Remain in the cage until the fire has burned out, then issue from the cage with the steak burned to a crisp. Explanation: On entering the cage the performer places the steak on a large iron hook which is fastened in one of the upper corners. The dress worn is of asbestos cloth with a hood that completely covers the head and neck. There is a small hole over the mouth through which he breathes. As soon as the fire starts the smoke and flames completely hide the performer from the spectators, and he immediately lies down on the bottom of the cage, placing the mouth over one of the small air holes in the floor of the same. Heat always goes up and will soon cook the steak. I deduce from the above that the performer arises and recovers the steak when the fire slackens but while there is still sufficient flame and smoke to mask his action. It is obvious that the above explanation covers the baker's oven mystery as well. In the case of the oven, however, the inmate is concealed from start to finish, and this gives him much greater latitude for his actions. M. Chabert made the oven the big feature of his programme and succeeded in puzzling many of the best informed scientists of his day.