a department of France, watered by the rivers Seine and Aube, from the latter of which it receives its name. It is bounded on the N. by the department of Marne; N.W. by Seine-et-Marne; W. by Yonne; S. by Cote-d'Or; and E. by Haute-Marne. Area about 1,603,500 English acres, of which nearly two-thirds are arable, about one-eighth forest, and somewhat less than one-sixteenth meadow-land. Its general inclination from S.E. to N.W. presents little variety of surface; the N. and N.W. parts are dry and sterile; but the S. and E. districts are very fertile, particularly the valleys, which are admirably adapted for the cultivation of the vine. The principal productions are wheat, rye, oats, potatoes, and wine, of which last about one-half is exported. Chalk and clay are abundant; and there are also quarries of marble, lithographic stone, and building-stone. It is divided into five arrondissements, 26 cantons, and 447 communes. Pop. in 1851, 265,247. The arrondissements, with their populations, are as follows:—Troyes, 95,878; Arcis-sur-Aube, 36,364; Nogent-sur-Seine, 35,211; Bar-sur-Aube, 44,347; Bar-sur-Seine, 53,447. Its manufactures are cotton, linen, and woollen goods, glass, earthenware, paper, sugar, ropes, &c. The capital is Troyes.