Speaking of the Forum as a place for gladiatorial combats, Vitruvius adds that the spaces between the columns should be wide,--that the view of spectators might be as little as possible impeded,--and that the upper story of the colonnade should be arranged with reference to the collection of an admission fee. The latter suggestion is of special interest. As we know from other sources, at public games certain places were reserved for the officials and for the friends of him who gave the spectacle; others were free to the public, while for still others an admission fee was charged. If the exhibition was held in a market place, with lower and upper colonnades, the former would be open to the people; the latter in part reserved, in part accessible on payment of the price of admission. It would be interesting to know whether on such occasions at Pompeii the gates of the Forum itself were shut, so that admission even to the free space could be regulated; perhaps they were in earlier times when, as at Rome, slaves were forbidden to witness the games. However, Cicero speaks of this time-honored regulation as in his day already a thing of the past; and so in Roman Pompeii the gates of the Forum may have remained open even on the days of the games. Their most important use was probably in connection with the voting. The Forum had a part also in spectacles which were not presented there. We are safe in assuming that, at least in the earlier times, whenever a gladiatorial combat was given in the Amphitheatre, or a play in the Theatre, the city officials, including especially the official providing the entertainment, formed in procession with their retinue and proceeded in festal attire to the place of amusement. These processions could scarcely have formed anywhere else than in the Forum, and thence they must have started out. The fact that the Forum was not accessible for vehicles suggests a significant point of difference between the festal processions of the colony and those of the capital. In the latter, vehicles had a prominent place. Thus at Rome the official who gave the games in the Circus entered the edifice with his retinue in chariots in the imposing circus parade, _pompa circensis_, and a similar usage prevailed in the case of other processions; priests, too, and priestesses were on many occasions allowed to ride. But even in Rome carriages were always considered a matter of luxury; and the municipal regulations promulgated by Caesar prohibited the use of vehicles, except those required for religious and civic processions, on the streets of the city from sunrise till the tenth hour, that is, till four o'clock in the afternoon.