[Illustration: COLONEL STODARE.] “Those two finger marks, though close to the carpet, gave me the key to the riddle of the Sphinx. In my mental photograph I saw the confederate kneeling behind the table, his head passing through superposed apertures, one in the top of the table, the other in the bottom of the box. The figure was concealed from view by two mirrors of pure silver-plated glass, set at such an angle as to reflect either side of the room (on the stage) in such a way that what to the eye was evidently the back of the same room seen beneath and beyond the table, was really only a reproduction of those sides visible in the mirrors between the legs of the table. {322} “This Sphinx was the sensation of London for weeks following, and having occasion to go to Paris a few days later, I offered the secret to Robert-Houdin’s successor, Hamilton, who, however, refused my terms until he knew the trick. This delay of his was much regretted by him, for some other speculator produced the secret some three months later and made a colossal sensation in Paris with his ‘Decapite Parlant.’ “In the same year I introduced the illusion for the first time on the stage in the celebrated spectacle of ‘Babil and Bijou’ at Covent Garden Theatre. In the ballet of ‘The Seasons’ Mlle. Henriette Dor, one of the most poetical dancers ever seen, appeared as the White Rose, and I designed a large rose bud on its stalk, which, coming up through the bed of summer flowers, blossomed wide until from its open petals the beautiful Dor rose up, apparently materializing as she issued from the calix on the stalk. The ballet girls were so arranged in groups around three sides (not in front) as to aid the deception by their adjusted reflections in the mirrors. “Practically it was the same trick—two mirrors at a right angle and a trap door. This curious trick was never improved on. It was added to and altered at the Polytechnic, where, among other adaptations of the same principle, was shown an animated tableau of Sir Joshua Reynolds’ famous cherubs. Three cherubs’ heads appeared in a moonlit sky, floating, and sang in sweet child voices the verses of an anthem. “Curiously enough I met the original Sphinx not three years ago in the person of a business manager who had been Stodare’s agent, and only three months back one of those very cherubs in Mr. Fred Solomon, the comedian, who was then a chorister at the Chapel Royal, and who was threatened with all sorts of tortures if he let the cat or the cherub out of the bag.” III. One of the best explanations of the Sphinx is given by Professor Hoffmann in his work on magic. I quote as follows from him: