DUFOUR, GITILLAITME HENRI, a Swiss gen., was b. at Constance in 1787, of a Genevese family. While Switzerland formed part of France, lie studied at the Poly technic school of Paris for two years; and on leaving it lie received an appointment as an officer of engineers in the 'French army. At the fall of Napoleon, be entered the Swiss service, and rapidly rose to the rank of col. When the government survey of Switzerland was undertaken, he was appointed director"---at the same time acting as the principal of the Swiss military school at Thum In 1840, lie published A Treatise on the of Ancient and Mediceral Times; and in 1842, A Manual Military Tactics. In 1847, he was raised to the rank of gen.. and iratrusted with the command of the army employed against the Sonderbund. He defeated their forces at Freiburg (13th Nov.) and at Lucerne (24th Nov.); and by his promptitude and skillful maneu vers, secured a triumph for the liberal party in time to prevent the interference of foreign powers, diplomatically or otherwise. The diet voted him a gift of 40,000 francs,
and for it time he was the most popular man in Switzerland. his politics were not, however, those of the Genovese democrats, and in 1848 they deprived him of the public offices lie had previously held. In 1856, he was again admitted to the council of Geneva, and sent on a special mission to Louis Napoleon of the dispute between Switz erland and Prussia about Neufchatel (see KERN). In 1864, he acted as president the conference held at Geneva relative to the treatment of the wounded in time of war. In 1869, lie presided at a kite in celebration of the jubilee of the reunion of Geneva with Switzerland. He died in 1875.