Note 6 — CH. V. LANGLOIS & CH. SEIGNOBOS
George Godfrey Berry translation
In accordance with the principle that historical method can only be taught by example, L. Mariani has given the humorous title Corso pratico di metodologia della storia to a dissertation on a detail in the history of Fermo. See the Archivio della Società romana di storia patria, xiii. (1890), p. 211.