[85] But Sindextus V. (+ 1590) did not complete the lantern surmounting the dome, upon which the gilded cross was placed November 18, 1593.
[86] Vincenzo Briccolani: Descrizione della basilica vaticana, third ed. Roma, 1816.—Pietro Ercole Visconti: Metrologia vaticana. Roma, 1828.
[87] The baldacchino raised with questionable taste above the ciborium of Arnolfo di Cambio, a pupil of Nicolò Pisano (a. d. 1285), rests on four columns of Oriental alabaster, from the quarries of Sannhur, in the district of the Beni Souef, offered to Gregory XVI. by Mohammed Ali, viceroy of Egypt. The pedestals are inlaid with malachite, a present from the emperor Nicholas of Russia.
[88] Sulla grandezza e disposizione della primitiva basilica ostiense. Roma, 1835.
[89] Acta apost. apocrif. p. 1-39. Lipsiæ, 1851.
[90] See: Die Grabplatte des h. Paulus: neue Studien über die römischen Apostelgräber, von H. Grisar, S. I. In the Römische Quartalschrift, 1892. Heft. I., II.
[91] See chapter ii., p. 99.
[92] My map of ancient Rome (scale 1:1000), which has cost me twenty-five years of labor, will be published in forty-sindex sheets measuring 0.90 m. × 0.60 m. each. The first, comprising sheets nos. iii., x., xvii., xxiii., xxx., and xxxvi. (from the gardens of Sallust to the Macellum Magnum on the Cælian), will be ready in May, 1893. The plan is drawn in five colors, referring respectively to the royal, republican, imperial, mediæval and modern epochs.
[93] The basilica of S. Valentine, discovered in 1886, by our archæological commission, is mentioned on p. 120 of the present volume.
[94] See Otto Hirschfeld: Die kaiserlichen Grabstätten in Rom, in the Sitzungsberichte der kgl. Akademie der Wissenschaften. Berlin, 1866.