one of the arrondissements of the department of the Saône and Loire, in France, extending over 647 square miles, or 414,080 acres. It is divided into eight cantons, and again into 87 communes, and contains 69,192 inhabitants. The chief city of the arrondissement bears the same name. It is built on the banks of the river Arroux, and contains 9310 inhabitants. During the revolution there was at Autun a vast foundery for cannon, and manufactories for other arms. At present the chief industry exercised consists in making cotton goods, hosiery, tanning, and paper mills. There are many Roman antiquities in the neighbourhood. Long. 4. 11. 50. E. Lat. 46. 56. 58. N.