The anxiety of the public to attend the shows was so great that they occupied the free seats in the amphitheatre before dawn in the morning, and gave fees to the officials to keep places for them, when any favourite gladiator or bestiarius was announced to perform. The shows lasted whole days, and hence various contrivances for keeping the spectators in good humour, and filling up the intervals between the combats. Seneca tells us of the meridiani, a class of slaves who were kept on purpose to fill up the midday leisure hours with sham fights, and ludicrous pranks played upon the bodies of those killed or half killed in the previous fights. The air was cooled with immense jets of water projected from the centre of the arena, or from holes in the statues, and scented with fragrant essences, among which extract of saffron mixed with wine seems to have been the most popular. The _arena_ of the Coliseum was originally about 250 feet in length, and 150 feet in breadth. It seems now much larger on account of the removal of the wall of the podium. The attention which has been drawn to the arena during the last few years by the re-opening of the hypogæa, or subterranean passages, renders it necessary to allude to the subject of these hypogæa, and to estimate how far the recent excavations have thrown new light upon the history and construction of the great amphitheatre. When the French occupied Rome, and it was incorporated into their empire in the four years preceding the Battle of Waterloo, the French Government carried out considerable excavations in the arena of the Coliseum, and besides clearing the podium and the chambers annexed to it, they opened the cryptoporticus which runs underground towards the Cælian Hill, and also discovered the passages beneath the arena which have been now excavated again. A great controversy was raised at that time as to the real level of the original arena between several of the archæological professors and antiquarians of Rome. The same controversy has now been again revived, and the same questions as to the probable date of the underground constructions have been again raised, but with as little hope as ever of arriving at a satisfactory solution. The truth seems to be that, as in most amphitheatres, these hypogæa were constructed at the very first erection of the Coliseum, but have been altered, neglected, filled up, and again cleared out many times during the eventful history of the building, and that it has now become impossible to trace the various stages of such destructions and restorations. As often as the drains which were intended to carry off the water became choked and failed to act, these lower chambers and passages were filled with water and rendered useless.