The middle arcade has a colossal statue of Moses, causing the water to issue from the rock ; and at the sides are two basso relievos, one representing Aaron leading the Israelites to the

miraculous spring, and the other Gideon selecting the soldiers to enlarge the passage for the water, which flows in

great abundance through three apertures into marble basins. The sides are adorned by four marble lions, with the water issuing from their mouths : two of these are formed of white Grecian marble, and the other two of black granite. The latter are Egyptian workmanship, and covered with hiero-

glyphics. This noble fountain was erected from a design of Cav. Fontana ; by the order of Pope Sixtus V., and its supply of water is obtained twenty-two miles from the city."

" Another of these fine structures is that called the Fountain of Trevi, in which boldness of design, and elegance of architecture are admirably united. The erection of this

very magnificent edifice commenced during the pontificate of Clement XII., who repaired the Aqueducts. Niccolo Salvi designed the grand front, but the work was completed under Clement XIII., who decorated it with statues, basso relievos in marble, and different columns of the Corinthian, Ionic, and Composite orders. In the centre is a statue representing Oceanus, standing in a car, drawn by two large sea-horses, guided by Tritons. One of the horses appears furious and impatient, whilst, on the contrary, the other is

exhibited as calm and placid, so that both are symbolical of the tempestuous or tranquil state of the sea.