These awnings did not extend to the arena, which was usually left open, but were universally adopted in all the Roman amphitheatres, after their introduction by Q. Catullus. The vast extent and extraordinary commodiousness of the amphitheatres erected by the Romans, prove not only the love of the sports exhibited in them entertained by that people, but the attention paid to their health and comfort by the architects who planned these buildings. The numerous vomitories were not amongst the least important of these comforts, securing a safe retreat from the theatre in all cases of emergency, and precluding those fearful accidents that in our times have not infrequently occurred, when an alarm of fire has been given. The mode of arrangements, too, saved the spectators from all the deleterious results of impure air, while the velarium preserved them from the sun. But not only were the spectators screened from too fervid heat, but they could retreat at pleasure, in case of rain or storm, into the galleries, where they were sheltered from the rain. Our superior civilization and refinement have not led to an equal attention to safety and comfort in the mode of our ingress and egress from theatres, or to their ventilation; but perhaps this omission may be accounted for by the difference of our habits from those of the Romans. Public amusements were deemed as essential to their comfort, as the enjoyment of home is to ours; and, consequently, while we prefer home--and long may we continue to do so--our theatres will not be either so vast or so commodious as in those times and countries, where domestic happiness was so much less understood or provided for. The erection of this magnificent edifice is attributed to Vespasian, Titus, or Domitian, from a fragment of an inscription discovered here some fourteen or fifteen years ago, of which the following is a transcript:-- VII. TRI. PO..... And as only these three filled the consulate eight times since Tiberius, in whose age no amphitheatre had been built in the Roman provinces, to one of them is adjudged its elevation. Could I only remember one half the erudition poured forth on my addled brain by the cicerone, I might fill several pages, and fatigue others nearly as much as he fatigued me; but I will have pity on my readers, and spare them the elaborate details, profound speculations, ingenious hypotheses, and archaiological lore that assailed me, and wish them, should they ever visit Nismes, that which was denied me--a tranquil and uninterrupted contemplation of its interesting antiquities, free from the verbiage of a conscientious cicerone, who thinks himself in duty bound to relate all that he has ever heard or read relative to the objects he points out.