The prestidigitateur has secretly introduced into the hat the small cake and the apparatus, B, by making them fall suddenly from a bracket affixed to the back of a chair. That at least is the most practical method of operating.
The vessel, A, about which there is nothing peculiar, is, of course, submitted to the examination of the spectators. The object of adding the flour is to render the paste less fluid, and to thus more certainly avoid the production of stains.
The cake being arranged under the apparatus, B, in the space d, the contents of the vessel, A, poured from a certain height, fall into the part c of the apparatus; then the vessel, gradually brought nearer, is quickly inserted into the hat in order to seize therein, and at the same time remove, the receptacle, B, with its contents, and leave only the cake.
[Fig. 3] shows this last operation. We have intentionally shown the part, B, projecting from the vessel, A, but it will be understood that in reality it must be inserted up to the base at the moment at which the vessel, A, introduced into the hat, is concealed from the eyes of the spectators. The prestidigitateur none the less continues to move his finger all around the interior of the double vessel as if to gather up the remainder of the paste, which he makes believe throw into the hat, upon the rim of which he even affects to wipe his fingers, to the great disquietude of the gentleman to whom it belongs.
The experiment may be complicated by first burning alcohol or fragments of paper in the compartment c of the apparatus. Some prestidigitateurs even add a little Bengal fire. But let no one imitate that amateur prestidigitateur who, wishing to render the experiment more brilliant, put into the receptacle such a quantity of powder that a disaster supervened, so that it became necessary to throw water into the burning hat in order to extinguish the nascent fire.
The following method of baking a cake in a hat is a decided improvement over the old trick with the porcelain vessel. It has the advantage of being able to be employed anywhere and of producing a complete illusion.
Before beginning the experiment, take three eggs, and having blown two of them, close the apertures with white wax. Place the three eggs upon a plate.
Within the left-hand side of your waistcoat place a flat cake, and then make your appearance before the spectators.