French art critic; born in Nancy Aug 28, 1859. In 1878 he went to Paris, where he wrote for various theater and art journals. In 1883 he became art, and afterward literary, critic of the "Voltaire." He was later appointed secretary of the Academy of Fine Arts, which position he resigned on the death of the director, M. Castagnary, though he continued to act as inspector of the Academy. In 1886 the government sent him on a mission to Spain to study the methods of instruction followed in the schools of industrial art and of design. In 1889 he was appointed assistant inspector-general of museums and organized the centennial section of French art at the Exposition Universelle in 1900, when, on the occasion of the opening of the fine arts exhibits, he was made an officer of the Legion of Honor. As a writer he is an individualist.
Marx has published: "Les Jouets" and "Les Dimanches de Paris," two works of fiction; "Etude d'Art Lorrain" (1882); "L'Art à Nancy en 1882" (Nancy, 1883); "Henri Regnault" (1886); "La Décorationet l'Art Industriel à l'Exposition Universelle de 1889" (Paris, 1890); "Histoire de la Médaille Française Depuis Cent Ans" (1890); "The Painter Albert Besnard" (ib. 1893); "J. K. Huysmans" (ib. 1894); "La Collection des Goncourt" (1897); "Die Französischen Medailleure Unserer Zeit," a collection of 442 medals and plaquettes (Stuttgart, 1898); "Les Médailleurs Français de 1789" (Paris, 1898); "La Décoration et les Industries d'Art" (ib. 1901); "Les Médailleurs Modernes en France et à l'Etranger" (ib. 1901); "Handbuch für Leihbibliotheken."
- Larousse, Dict. 2d Supplement;
- Arch. Isr. July 4, 1889;
- Univ. Isr. May 4, 1900.