[1]. The Guido has since been sold.
[2]. Vide Hobhouse’s Notes to Childe Harold.
[3]. Another has been since established, and from the zeal and intelligence of Signor Ernesto Mauri, the present professor, will doubtless become more valuable; but I am afraid the funds are not sufficient to do it justice.
[4]. On returning to Rome in 1818, I found this had been cleaned and restored by Pomaroli. The operation was admirably performed, and brought out many circumstances which were lost in its former state. These things become absolutely necessary in old paintings, yet supposing nothing of the master to be lost, which is hardly possible, our confidence that what we see is his production, is nevertheless inevitably diminished.
[5]. I do not know where I obtained this. In Dr. Rees’s Cyclopedia, Art. Discharge, a pipe of 1 inch diameter, at a depth of 4 feet, is said to discharge 8,135 cubic feet per minute, which would give 76 per second, with a pipe of ¾ of an inch.
[6]. Recent excavations show that there were steps at this gate, and it could not therefore have been for the passage of the triumphant charioteers.
[7]. They have since been purchased and placed in the Vatican.
[8]. Nibby published a work in 1819 on the neighbourhood of Rome, including Tivoli, Albano, and other places: it may be of use as a guide, but the subject deserved something better.
[9]. Nibby, in his Viaggio antiquario ne’ contorni di Roma assents to Chaupy’s discovery, but is determined to have here also a Fons Bandusiæ.
[10]. Nevertheless Sir W. Gell has since observed a channel, which he thinks may have been the ancient watercourse, I believe at about this elevation.