On the 22d of March, in the year of our Lord 1718, a young cavalier of high bearing, about twenty-six or twenty-eight years of age, mounted on a pure-bred Spanish charger, was waiting, toward eight o'clock in the morning, at that end of the Pont Neuf which abuts on the Quai de l'Ecole. He was so upright and firm in his saddle, that one might have imagined him to be placed there as a sentinel by the Lieutenant-General of Police, Messire Voyer d'Argenson. After waiting about half an hour, during which time he impatiently examined the clock of the Samaritaine, his glance, wandering till then, appeared to rest with satisfaction on an individual who, coming from the Place Dauphine, turned to the right, and advanced toward him.