From the other great reservoir called the Sette Sale, or the Thermæ, and from thence to the Colosseum.
A.A.A. The drain under the road between the Cœlian and the Palatine, now called Via di S. Gregorio, leading to the Via Appia.
B. Arch of Constantine.
C. Meta Sudans.
D. Thermæ of Titus on the Esquiline, with the great piscina called Sette Sale, and the aqueduct leading from it to the Colosseum.
E. Monastery and Church of S. Gregory.
F. Site of the Porta Capena, with the aqueduct over it, leading to the Piscina Publica under the Aventine: and on to the mouth at the Porta Trigemina, in the bank of the Tiber.
G. Church and monastery of SS. John and Paul.
H. Church and monastery of S. Clement.
I. The great reservoir and Piscina of Nero over the Arch of Dolabella, and reservoir of the Aqua Appia to the left of it; this is underground in the garden of the Villa Celimontana, and from thence the specus goes underground to the cliff of the Cœlian, where another piscina is shewn, near the bottom of the plan, to the left.