This is a Victorian antiquarian essay — part personal memoir, part folklore scholarship — almost certainly by Charles Godfrey Leland, drawn from his immersion in Florentine folk magic. The central thread follows the author's acquisition of an ancient amethyst amulet in Florence and his consultation with a local strega (folk witch) about it, who provides a full Italian conjuration treating the stone as a buried talisman of exceptional power against intoxication and betrayal. The author then cross-references her claims against obscure Renaissance mineralogical texts — particularly Franciscus Rueus's *De Gemmis* (1608) — and finds remarkable convergence: both source attribute the amethyst with protecting memory and stimulating genius, not merely preventing drunkenness. A distinctive feature is the author's self-deprecating erudition: he frames his scholarship as cobbled together from penny bookstalls and cigar wrappers, insisting the folk-witch's oral tradition independently confirmed what learned Latin folios preserved. The essay ends by pivoting to a second Italian charm — the *guirlanda delle strege* (witch's ladder), a knotted cord of hen feathers used to curse a child — which the author connects to an English specimen published in the *Folk-Lore Journal*, arguing that Italian peasant tradition solved a puzzle English scholars could not. The work's distinctive claim throughout is that living Tuscan folk magic preserves the authentic continuity of Etruscan and Roman religious practice, a tradition the author positions himself as nearly alone in recognizing and recording.