Anio Novus 173.8 127 Claudian 163.2 119 Julian 145.1 106 Tepulan 138.7 101½ Marcian 128.7 92½ Anio Vetus 75.4½ 55½ Virgo 9.3 7 Appian — — At a lower level than Specus of the Appian. Alsietina in the Trastevere 37.6½ 27½ He gives as the total full range, i.e. from the _specus_ of the Alsietina (the lowest), to that of the Anio Novus (the highest), as 211.2½ _palmi_, or 154½ English feet. The height of the Appian, he shews by his diagram to be about 24 English feet above the Quay of the Tiber. The points at which Piranesi obtained his measurements, and the mode employed, are not recorded. It seems hardly possible that the Appia is 55 ft. under the Anio Vetus in Rome. [36] See ante. Frontinus, cap. 21. [37] The passage, as it stands in the Codex Cassinensis, is, “Anio Vetus _citra_ quartum miliarium _infra_ novum _qui_ a Via Latina in Lavicanam _inter_ arcus trajicit, et ipse piscinam habet.” This piscina is visible at the third modern milestone on the Via d’Albano, and at the fourth on the Via Latina. The Codex Vaticanus is an inferior copy of the Codex Cassinensis; but the Codex Urbinas, now also in the Vatican Library, is distinct. No other MS. is of any authority. [38] Remains of the tombs on the Via Latina are distinctly visible and rather prominent objects, close to the Torre Fiscale. The Marrana, or Almo, the small stream that received the surplus water of the aqueducts, also washes the foot of the tower.