To Cuba and Back by Richard Henry Dana, Jr.

If mosquito nets were invented for the purpose of shutting mosquitoes in with you, they answer their purpose very well. The beds have no mattresses, and you lie on the hard sacking. This favors coolness and neatness. I should fear a mattress, in the economy of our hotel, at least. Where there is nothing but an iron frame, canvas stretched over it, and sheets and a blanket, you may know what you are dealing with.

The clocks of the churches and castles strike the quarter hours, and at each stroke the watchmen blow a kind of boatswain's whistle, and cry the time and the state of the weather, which, from their name (serenos), should be always pleasant.