Note 99 — Chapter IV · PART I. THE AQUEDUCTS.

There are remains of the Septa in the cellars under the houses on the west side of the Corso, in its lower part. These remains of the arcade are now chiefly underground, owing to the filling up of the great foss, called in this part Via Lata, because the wide foss under part of the Quirinal and of the Capitol had at one time been made into a wide street or place, on the eastern side of which is situated the Church of the “SS. Apostoli in Via Lata” and that of S. Maria in Via Lata on the western side, at the north-west corner. The great public building called the Septa went down the western side of this wide place from S. Maria to the Venetian Palace, with an arcade towards the street or place, of which many of the arches remain in the cellars. These arches under the church of S. Maria are absurdly called the house of S. Paul. They are visible also under the Palazzo Doria to the south of that church, and in other cellars.