Its most important industrial establishments are the mirror manufactory of St Gobain and the chemical works at Chauny, and the workshops and foundries of Guise, the property of an association of workpeople organized on socialistic lines and producing iron goods of various kinds.
It employs about 12,000 workpeople, and produces about three-fourths of the watches sold in France.
Over 60,000 workpeople are employed in the glass industry.
Its dirty and irregular streets are inhabited by a scanty population of workpeople, and its interest lies mainly in its ancient fortifications.
In the debate on the vote of credit in February 1878, he made one of his impressive speeches, urging the government not to increase the difficulties manufacturers had in finding employment for their workpeople by any single word or act which could shake confidence in business.