an arrondissement of the department of the Aisne, in France, extending over 485 square miles. It is divided into five cantons and 127 communes, and contains 57,013 inhabitants. The city which gives its name to the department is situated on the side of a hill upon the right bank of the Marne. It contains 940 houses, with 4160 inhabitants. The chief trade is in wine and corn, and in the making of linen and of serges, with some considerable tanneries. There are near it two mineral springs containing iron. Long. 3. 23. E. Lat. 49. 12. N.

CHATEAUBRIANT, an arrondissement of the department of the Lower Loire, in France. It extends over 640 square miles, comprises seven cantons and thirty-seven communes, containing 49,666 inhabitants. The chief place, of the same name, is on the river Chère, and contains 650 houses, with 2733 inhabitants. Long. 1. 30. W. Lat. 47. 45. N.

CHATEAUDUN, an arrondissement of the department of the Eure and Loire, in France, extending over 576 square miles, divided into five cantons and ninety-one communes, and containing 53,994 inhabitants. The chief city, of the same name, is situated on a rising ground on the banks of the Loire. It has a fine market-place, and a castle from which the prospect is most delightful. It contains 925 houses, and 6161 inhabitants, who make woollen blankets, and some thin stuffs. Long. 0. 18. 59. E. Lat. 48. 4. 12. N.

CHATEAULIN, an arrondissement in the department of Finistère, in France. It is 775 square miles in extent, comprising seven cantons, fifty-nine communes, and a population of 82,432 persons. The chief place, of the same name, is a city situated on the banks of the Aulne. The city itself is small, and contains not more than 100 houses, but the parish is large, and the whole has 3172 inhabitants, who partly depend on the fishery for their occupation, and partly on some slate quarries near them.