Note 085
Vivarium was an angle in the new wall enclosed for wild beasts, (Procopius, Goth. l. i. c. 23.) The spot is still visible in Nardini (l iv. c. 2, p. 159, 160,) and Nolli's great plan of Rome.
The History Of The Decline And Fall Of The Roman Empire Fall In The EastChapter 41