In the middle of each side we may observe a _cuneus_, or parcel of the seats, of near thirty feet broad, just over the most elevated part of the circular work, and reaching up to the terrace, which swells out above the concavity of the whole, and answering to the rising ground in the middle of the terrace, which we call the pavilions, and have assigned for the seats of the officers among the soldiery. This is upon the shortest diameter, and over the _tribunalia_ of the emperor and prætor; and consequently cuts each side of the upper _series_ of seats above the circular walk into two equal parts. I have guessed only at these reasons for it, which I leave to better judgements. One might possibly be, to give a greater beauty to the range of seats over the circular walk by its break, which is a thing not practised at all in other amphitheatres, unless we suppose this effect produced by their _vomitoria_: or is it not more necessary here, because of the circular walk, which causes the _series_ of seats above them to be broader at the extremity than in the middle, and therein different from the aspect of common amphitheatres? Or was not this division useful in distinguishing the great length of that _series_ into separate compartments for two different sort of plebeians? Or is it necessary to distribute the three orders of people; the senators under the circular walk to the _podium_, whose place in general was called _orchestra_; that half of the upper seats on the upper or south side of this protuberant part, to the equestrian order; that on the lower or north side, to the people or vulgar? But there seems to be another likely reason, that every seat here was divided into two (at least some part of it) in the nature of steps, as was practised in particular places of all other amphitheatres: and perhaps there were three of these ranges of steps, one in the middle, and one on each side: that in the middle was for the officers to ascend from the circular walk to their tribunals, or tents, set upon the raised part of the terrace, whilst the common soldiers went up by the ascent over the cave, at the upper end. The steps on each side led to the respective halves of the upper _series_ of seats above the circular walk. All which uses to me appear convenient and necessary for ease, regularity, and decency. In the upper or south-west half of the internal slope have been some deformities, caused by the inner edge of the terrace in some places cut or fallen down, which spoils the curve a little: and, as the lower terraces diminish gradually from the pavilions to the entrance, that on the western end has received great damage over and above; for the inward verge of it has been thrown down intirely: as for that north-easterly half of the terrace, which we said was narrower, more exposed to the sun, and for that reason allotted to the last rabble, we leave them to scramble up with somewhat more labour over the whole