“But not a word is said of that curious screen panel, bearing a double-headed eagle—the Austrian coat of arms—surmounting a large cabinet of costumes occupying so much space on the stage. The programme does not explain that this screen panel is transparent from behind and that an accomplice with a strong magnifying lens reads every move made by Svengali and repeats his signals to the pretty girl at the piano and the impersonator at the cabinet. “THE SYSTEMS EXPLAINED. “Here is an illustration of how the figure system can be worked. As explained above, the famous personages, popular songs and operas are on numbered lists. Svengali in the aisle, with his code of signals, has all these numbers committed to memory. “When a spectator whispers ‘Dickens’ Svengali knows it is No. 4, and he signals accordingly. “But how? “By touching his head, chin, or breast, or that particular part of his body designated in the signal code of the Svengali Company. The diagram given herewith illustrates the system of communication by numbers, nine figures and a cipher (0), by which all the wealth of the world may be measured, and any number of words may be communicated without a word of speech. One has but to map out a square on his face, breast or body, and number it with these nine figures, with an extra space for the cipher, to be ready for the Svengali business. That is, when he has memorized the names and the numbers representing them. {197} “Say the human head is used for this purpose. Imagine the top of the head, right hand side, as No. 1, the right ear as No. 2, the jaw as No. 3, and the neck as the cipher; the forehead No. 4, the nose No. 5, the chin No. 6, the top of the head on the left side as No. 7, the left ear No. 8, and the left side of the jaw No. 9. “Thus you have the code system by which operators can communicate volumes by using a codified list of numbered words or sentences. [Illustration] “If you label the Lord’s Prayer No. 4, and the Declaration of Independence No. 5, you may instantly telegraph the mighty literature through wireless space—enough literature to save all Europe from anarchy—by two natural movements of the hand. “You can label your eyes, your movements or even your glances, making them take the places of the nine omnipotent numbers. Again: Glance upward to the right for No. 1, straight upward for No. 2, and upward to the left for No. 3. Repeating, glancing horizontally for Nos. 4, 5 and 6. Repeating the same again, by glancing downward for Nos. 7, 8 and 9, and stroking your chin for the cipher (0).