Bourgeois, Joseph Émile Robert (X 1876 ; 1857-1945).

Professor of astronomy and geodesy at the Polytechnic from 1908 to 1929, brigadier general in 1914, director of the geographic service of the army, he is responsible for important geodetic works. General of division in 1916, Director of artillery in 1918, he organized during the Great War, groups of shooting patterns, land observation sections for armies and sound tracking. Member of the Academy of Sciences (1917), senator from the Rhine in 1919