The science of practical joking was sedulously cultivated by Roger and his friends, who rejoiced to bring off successful "mystifications." One of Roger's best was played upon Duponchel, the director of the Opéra. One day the whole street where Duponchel lived was set all agog by the appearance of a magnificent funeral procession, consisting of a hearse and fifty carriages, with Roger and his friend Cabanon occupying the first carriage as chief mourners; the head of the procession drew up at Duponchel's door, to his great indignation. The joke up to this point was of no especial originality, but Roger gave it a turn of his own. The Romantic fashion dictated that every chapter in a novel should be headed by an epigraph, as extravagant as possible, from the work of some Romantic author. Roger therefore headed a chapter in his novel "Pulchinella," which was just appearing, "Feu Duponchel (Histoire contemporaine)." Even after he was hopelessly in debt he remained a joker. Being saddled with a thin and dirty bailiff, he gave him ten francs a day, washed him, dressed him as a Turk, and gave an evening party in honour of his Pasha, who could only talk in signs. The supreme _mystificateurs_, however, were Romieu and Monnier. Romieu was reputed to be the most amusing man in Paris, and so firmly founded was his reputation that nobody ever took him seriously. When he became prefect of Quimperlé--an easy post which enabled him to take many a holiday upon the boulevard--he was faced with the problem of dealing with a plague of cockchafers in the prefecture. He hit upon the wise and perfectly successful device of offering fifty francs for every bushel of dead cockchafers. The Bretons were grateful enough, but all Paris was in a roar. Here was the crowning farce of which only its lost joker would have been capable, and it supplied the smaller comic papers with copy for several days. Romieu made Monnier's acquaintance in an appropriate way. About eleven o'clock one night the artist heard a knock at his door, which he opened to a stranger, who came in and entered into a polite conversation without a word of introduction. Monnier made no comment, but replied with equal affability. After an hour or so, as the stranger remained, he ransacked his sideboard and entertained his guest with an impromptu supper. Time passed, the small hours struck, and still the stranger made no sign of going. Monnier therefore announced that he was ready for bed and that his sofa was at his guest's disposition. So they parted for the night, and next morning when they met Monnier's first words were "You are Romieu," a compliment returned by "You are Monnier."