The AMPHITHEATRE was a place for the exhibition of gladiatorial shows, combats of wild beasts, and naval engagements. Its shape was that of an ellipse, surrounded by seats for the spectators. The word Amphitheatre was first applied to a wooden building erected by Caesar. Augustus built one of stone in the Campus Martius, but the most celebrated amphitheatre was built by Vespasian and Titus, and dedicated in 80 A. D. It is still standing, though partly in ruins, covers nearly six acres, and could seat ninety thousand people. The name given to it to-day is the COLOSSEUM. The open space in the centre was called the ARENA, and was surrounded by a wall about fifteen feet high to protect the spectators from the wild beasts. Before the time of Caesar the shows were held in the Forum and in the Circus. The THEATRE was never as popular with the Romans as with the Greeks. The plays of Plautus and Terence were acted on temporary wooden stages. The first stone theatre was built by Pompey in 55 B. C., near the Campus Martius. It was a fine building, with a seating capacity of forty thousand. The seats were arranged in a semicircle, as at present, the orchestra being reserved for the Senators and other distinguished persons. Then came fourteen rows of seats for the Equites, and behind these sat the ordinary crowd. The CIRCUS MAXIMUS. between the Palatine and Aventine Hills, was built for chariot races, boxing, and gymnastic contests. It was an immense structure, with galleries three stories high, and a canal called Euripus, and it accommodated one hundred thousand spectators. In the centre Caesar erected an obelisk one hundred and thirty-two feet high, brought from Egypt. The seats were arranged as in the theatre. Six kinds of games were celebrated: 1st, chariot racing; 2d, a sham-fight between young men on horseback; 3d, a sham-fight between infantry and cavalry; 4th, athletic sports of all kinds; 5th, fights with wild beasts, such as lions, boars, etc.; 6th, sea fights. Water was let into the canal to float ships. The combatants were captives, or criminals condemned to death, who fought until one party was killed, unless saved by the kindness of the Emperor. A TRIUMPHAL PROCESSION. The Imperator, when he returned from a successful campaign, was sometimes allowed to enjoy a triumphal procession, provided he had been Dictator, Consul, or Praetor. No one desiring a triumph ever entered the city until the Senate decided whether or not he deserved one. When a favorable decision was reached, the temples were all thrown open, garlands of flowers decorated every shrine and image, and incense smoked on every altar. The Imperator ascended the triumphal car and entered a city gate, where he was met by the whole body of the Senate, headed by the magistrates. The procession then proceeded in the following order:--