Note 135 — Chapter V

Piè di Lupo. This is clearly a mistake for Piè di Lugo, for at the lake of that name above the great Cascade of Terni, there are appearances corresponding exactly with what Vasari says. It is remarked in Hare’s Days near Rome, II, p. 141, that the waters of the Vellino, which makes the fall, are ‘so strongly impregnated with carbonate of lime, that they constantly tend to form a deposit of travertine, and so to block up their own channel.’