The Vatican.
Roba di Roma. William W. Story. P. 534.
The City of the Saints. Lyman Abbott. Harper's Magazine. Vol. xlv, p. 169.
Walks in Rome. Augustus J. C. Hare. Chap. xvi.
The Protestant Cemetery in Rome.
Rome: The Eternal City. Clara Erskine Clement. Vol. ii, p. 512.
Roba di Roma. William W. Story. P. 509.
Walks in Rome. Augustus J. C. Hare. P. 698.
With Shelley in Italy. Anna B. McMahan. Pp. 228, 241.
Literary Landmarks of Rome. Laurence Hutton. P. 35.