1519. Remains of another castellum aquæ above Subiaco, and the mouth of a cave connected with the aqueduct.
1555. Specus of the Anio Novus cut in the cliff of the valley of the Anio. This is below the level of the great bar, and the water was forced to go through the specus into Rome by the bar being higher than the specus. A modern winding road has now been cut here, and the rock has been in part cut away, shewing an opening into the specus, which is six feet high and two feet wide. Above is seen a tower and an embattled wall of the modern Villa Gori.
1516. Part of the specus of Trajan, who repaired this aqueduct. The specus is cut as a tunnel in the cliff, with a reservoir by the side of it.
1556. A view of the gorge in the mountains above Subiaco, where the three lakes are situated.
1536. A small lake at the source of the spring called Fons Novus Antoninianus, one of the sources of the Anio Novus.
1558. Cascade at the Paper Mill, on the site of a piscina of the Anio Novus, above Subiaco.
1057. Arches of the bridges of the Marcia and Anio Novus, in the Valley of the Arches above Tivoli.
1052. Arch of the bridge on the Anio Novus, in the Valley of the Arches above Tivoli, with a medieval tower built upon it, forming one of the most picturesque objects in the neighbourhood of Rome.
1522. Specus of the Anio Novus below Tivoli, on the road to Garciano, called the Promenade, with openings into it, and an old tomb in front of it. This promenade is through an olive wood, and the roots of the olive trees run into many of the ruins.
1523. One side of a castellum aquæ of the aqueduct above the road to Garciano, faced with opus reticulatum.