The archæology of Rome, Part 8

by John Henry Parker

D. View of that part of the specus of the Aqua Appia which is built of squared stones, and has a terra-cotta water-pipe on each side of it.

E E. Longitudinal Section of this part.

F. Transverse Section of the same.

Details of the Plan A.

a a. Entrance to the cave or quarry.

b b. Via di San Paolo, the carriage-road to that gate.

c c. Via di Santa Sabba, the carriage-road up the hill to the south.

d. Via di Santa Prisca, the road up the hill to the north.

e e. The most perfect part of the specus where it is built, and not merely a tunnel cut in the bed of tufa, as in other parts.

f f f f. Windings of the tunnels for the Aqueducts.