an arrondissement of the department of the Sarthe, in France, extending over 654 square miles. It is divided into ten cantons and 145 communes, which contain 120,500 inhabitants. The capital is the city of the same name situated on the river Dive, and has within it 800 houses, and 5550 inhabitants, who make hempen and flaxen cloth. Long. 0. 16. E. Lat. 48. 20. N.