an arrondissement of the department of the Yonne, in France. It extends over 463 square miles, and comprehends five cantons, divided into eighty-two communes, having 45,390 inhabitants in 1836. Its capital is the city of the same name, situated on the river Armançon, and containing in the same year 4271 inhabitants. They make much good wine, and carry on manufactories of hats and hosiery. Long. 3. 53. 39. E. Lat. 4. 51. 8. N.