CHAPTER XX.

A water-excursion--The Bridge of Sighs--Doge's Palace--Archæological Museum--The Rialto--The streets of Venice--Aids to disease--Venetian Immorality--The Arsenal--Nautical Museum--Trip to Lido--Glass works --Venetian evenings--The great Piazza--Scene on the Piazzetta-- Farewell to Venice 253