an arrondissement of the department of the Jura, in France, extending over 496 square miles. It comprehends seven cantons, divided into 161 communes, and contains 72,650 inhabitants. The capital is a city of the same name, situated on the river Elantine. It is well built, and in a fertile district, in which some good red wine is produced. It contains 1150 houses, with 5620 inhabitants, who make porcelain, tan leather, and refine much saltpetre.