SEINE and OISE, a department in the north-west of France. It produces grain, fruits, wood, and some vines; but the wine is of an inferior quality. The inhabitants are chiefly occupied in supplying the markets of Paris. There are, however, some manufactures of arms, clocks, porcelain, and painted cloth. Its extent is 575,042 hectares; and the population in 1817 was 439,972. The contributions for the year 1802 amounted to 7,373,685 francs. Versailles is the chief town.