His festival was celebrated on the of August and the 15th of December. On the former date, the flamen Quirinalis, assisted by the vestals, offered sacrifice, and the pontifices presided at horse and chariot races in the circus. It was a day of public rejoicing; all kinds of rustic amusements took place, amongst them running on ox-hides rubbed with oil (like the Gr. [Greek: haskoliasmos]). Horses and mules, crowned with garlands, were given rest from work. A special feature of the games in the circus was chariot racing, in which mules, as the oldest draught beasts, took the place of horses. The origin of these games was generally attributed to Romulus; but by some they were considered an imitation of the Arcadian [Greek: hippokrateia] introduced by Evander. There was a sanctuary of Consus on the Aventine, dedicated by L. Papirius Cursor in 272, in early times wrongly identified with the altar in the circus. See W. W. Fowler, _The Roman Festivals_ (1899); G. Wissowa, _Religion und Kultus der Roemer_ (1902); Preller-Jordan, _Roemische Mythologie_ (1881). CONTANGO, a Stock Exchange term for the rate of interest paid by a "bull" who has bought stock for the rise and does not intend to pay for it when the Settlement arrives. He arranges to carry over or continue his bargain, and does so by entering into a fresh bargain with his seller, or some other party, by which he sells the stock for the Settlement and buys it again for the next, the price at which the bargain is entered being called the making-up price. The rate that he pays for this accommodation, which amounts to borrowing the money involved until the next Settlement, is called the contango.