an arrondissement in the department of the Yonne, in France. Its extent is 774 square miles, or 475,360 acres, divided into 12 cantons and 130 communes, with 102,122 inhabitants. The chief city of the arrondissement is of the same name. It is situated on the banks of the Yonne, in a district productive of wine; and is built in an antique fashion, with an ancient cathedral and a splendid palace. The inhabitants are 12,064, who, besides their trade in wine and in firewood, carry on manufactures of cloths, druggets, serges, cotton and woollen stockings, and some considerable tanneries. Long. 3. 28. 16. E. Lat. 47. 47. 54. N.