ARNIM, Lrnwro 'JOACHIM ( ACHIM ) von (1781-1S31). A German novelist and poet, born in Berlin. Ile is best known for a collection of folk-songs made with Clemens Brentano, and pub lished (1806-OS) under the title of the initial song. Des Knaben Wunder/torn. He studied the natural sciences at G6ttingen and Halle, and received the degree of M.D., hut never practiced medicine. His first work, Theorie der cicktrischen Ersenei 1111901, showed a leaning to the super natural, common among the German romanti cists, still more strongly marked in his Hollins Liebeleben ( 1802), and Arias 0 lien barn ngen (1s04) . Der 11' in fergart cn (1809), a collec tion of romantic tales, was followed in 1S10 by a striking novel, Die Griifin. Dolores. Halle and .1 crusalem (1511 ) is a humorous ro mance, and Isabelle von Agyp ten (1511) mediocre novel. Two years later he collected his dramas. In 1817 he produced his last and best romance, Die K ronentraehter, a story of the days of Emperor Maximilian. IIis works are careless in form, incoherent in struc ture, and romantically whimsical, but they show a remarkable originality of invention. They were
collected, with an introduction by Wilhelm Grimm, in twenty volumes (1839-48). There is a brilliant eulogy of Arnim in Ileine's Deutsch land.
AWN() (anciently, Lat. A rnus) . One of the largest rivers in Italy. rising on Mount Falte rona in the Apennines, at the eastern end of Tuscany, at an elevation of over 5000 feet (Map: Italy, E 4). Near Arezzo it is connected with the Tiber through the canalized portion of the (Adana, and near that place enters the Val (I' Arno, one of the most fruitful and beautiful val leys of Italy. It passes Florenee and enters the Mediterranean six miles west of Pisa. In former times that city was situated at its mouth. The entire length of the Arno is about 140 miles; its most important tributaries are the Chiana and Sieve. It is navigable for barges as far as Florence. The Arno is subject to frequent rises, and in sonic parts of its course the banks are protected by dykes.