In 1827 the French navy ordered fifty large guns on the Paixhans model from the arsenals at Ruelle and at Indret near Nantes.
Ruelle-sur-Touvre, commune in the Charente department in south-western France
Chevrillon was born at Ruelle (Charente), and educated at the University College School (London), the École Alsacienne (Paris), the Lycée Louis-le-Grand, and the University of Paris.
His PhD supervisor was Bill Parry and his thesis title The Ruelle Operator, Zeta Functions and the Asymptotic Distribution of Closed Orbits.