Sam and companions arrived by train from Bergamo July 20, 1867 at 8pm. They departed by night train for Florence July 22, 1867. Mark Twain Project: Quaker City Itinerary

Bædeker Northern Italy (1877) Route 36 page 204

The Quaker City made port at Cagliari October 13, 1867 but because of cholera no one left the ship.  The ship then proceeded to Algiers.

The Matterhorn  is a mountain of the Alps, straddling the main watershed and border between Switzerland and Italy.

The Quaker City was scheduled to stop at Malta but reports of cholera prevented that and the ship bypassed the island.

Bædeker, 1867:

Leghorn, Ital. Livorno, French Livourne.