i i. Sockets for pivots, as in the Colosseum.
k k k. Canals for water.
l l. The aqueduct.
m m. The drain.
n n. Stairs.
o o. Superstructure. The only remains of the exterior façade.
THE COLOSSEUM.
PLATE XXXI.
AMPHITHEATRE AT VERONA.
AMPHITHEATRE OF VERONA