an arrondissement of the department of the Upper Marne, in France. It extends over 926 square miles, is divided into ten cantons, and these into 209 communes, containing 92,500 inhabitants. The capital is the city of the same name near the Marne, and 1370 feet above the level of the sea. It contains 1800 houses, and 6500 inhabitants, who are chiefly employed in making cutlery and other hardwares. Long. 5. 14. 45. E. Lat. 47. 51. 59. N.