[77] “... item stagnum maris instar, circumseptum ædificiis ad urbium speciem.” (Suetonii Nero, c. 31.)
[78] Photos., Nos. 3282, 3285.
[82] Photos., No. 3268, 3269.
[83] Photos., Nos. 3203, 3205, 3282, 3283. In some parts a brick wall of the fifth or sixth century has been introduced between the two old tufa walls, during the repairs after the earthquakes. This is at first sight rather puzzling, until it is examined and properly considered.
[84] Photos., No. 3271.
[85] Photos., Nos. 3285, 3286.
[86] For elephants there are four larger dens provided, two on either side of the central passage. See the Plan.