ARPINO (anc. Arpinum)  , a town of Campania, Italy, in the province of Caserta, 1475 ft. above sea-level; 12 M. by rail N.W. of Roccasecca, a station on the railway from Naples to Rome . Pop . (1901) ro,6o7 . Arpino occupies the lower part of the site of the ancient Volscian town of Arpinum, which was finally taken from the Samnites by the Romans in 305 B.C . It became a civitas sine suffragio, but received full privileges (civitas cum suffragio) in 188 B.C. with Formiae and Fundi; it was governed as a praefectura until the Social War, and then became a municipium . The ancient polygonal walls, which are still finely preserved, are among the best in Italy . They are built of blocks of pudding-stone, originally well jointed, but now much weathered . They stand free in places to a height of 11 ft., and are about 7 ft. wide at the top . A single line of wall, with medieval round towers at intervals, runs on the north side from the present town to Civitavecchia (2055 ft.), on the site of the ancient citadel . Here is the Porta dell' Arco, a gate of the old wall, with an aperture 15 ft. high, formed by the gradual inclination of the two sides towards one another . Below Arpino, in the valley of the Liris, between the two arms of its tributary the Fibrenus, and j± m. north of Isola del Liri, lies the church of S . Domenico, which marks the site of the villa in which Cicero was born and frequently resided .

Near it is an ancient

bridge, of a road which crossed the Liris to Cereatae (modern Casamari) . The painter Giuseppe Cesari (1560-1640), more often known as the Cavaliere d' Arpino, was also born here . See 0 . E . Schmidt, Arpinum, eine topographisch-historische Skizze (Meissen, 1900) . (T .