During this time, M. de Kempelen, a celebrated Viennese mechanician, came to Russia to pay a visit to M. Osloff, with whom he had been long acquainted. He was travelling about to learn foreign languages, the study of which he afterwards displayed in his splendid work on the “Mechanism of Words,” published at Vienna in 1791. M. de Kempelen stopped a short time in every country the language of which he desired to learn, and his aptitude was so great that he acquired it very speedily. This visit was the more agreeable to the doctor, as for some time he had been alarmed as to the consequences of the noble action he had performed; he feared being compromised if it were found out, and his embarrassment was extreme, for, living alone with an old housekeeper, he had no one to consult or help him. Hence, he told M. de Kempelen his secret, and begged his aid. Though at first startled by sharing such a secret--for he knew that a reward was offered for the insurgent chief, and that the act of humanity he was about to help in might send him to Siberia--still, M. de Kempelen, on seeing Worousky’s mutilated body, felt moved with compassion, and began contriving some plan to secure his escape. Dr. Osloff was a passionate lover of chess, and had played numerous games with his patient during his tardy convalescence; but Worousky was so strong at the game that the doctor was always defeated. Then Kempelen joined the doctor in trying to defeat the skillful player, but it was of no use; Worousky was always the conqueror. His superiority gave M. de Kempelen the idea of the famous Automaton Chess-player. In an instant his plan was formed, and he sat to work immediately. The most remarkable circumstance is, that this wonderful chef-d’œuvre, which astonished the whole world, was invented and finished with three months. M. de Kempelen was anxious his host should make the first essay of his automaton; so, he invited him to play a game on the 10th of October, 1796. The automaton represented a Turk of the natural size, wearing the national costume, and seated behind a box of the shape of a chest of drawers. In the middle of the top of the box was a chess-board. Prior to commencing the game, the artist opened several doors in the chest, and M. Osloff could see inside a large number of wheels, pulleys, cylinders, springs, &c., occupying the larger part. At the same time, he opened a long drawer, from which he produced the chessmen and a cushion, on which the Turk was to rest his arm. This examination ended, the robe of the automaton was raised, and the interior of the body could also be inspected.