Note 223 — Chapter II · THE CONTRIBUTION OF WESTERN CHRISTENDOM BEFORE 1100 A. D.
Reading edition
Marinelli, La geogr., 1882, p. 534 (also in Scritti minori, vol. i, [1908?], pp. 325–326, where there is an important footnote by Carlo Errera). See also Beazley, Dawn, vol. i, p. 275, note 1, and pp. 328–332.