After ten years of study he published the *Dictionnaire des antiquités chrétiennes* (Paris 1865, 1877 and 1899 [posthumous]), which was regarded in his day as a classic and fundamental work; yet the author’s knowledge did not extend beyond the researches of Fr. G. Marchi. From 1867 to 1879 he edited the French translation of G. B. De Rossi’s *Bulletino di archeologia cristiana*. Also worthy of mention are: *Notice historique, liturgique et archéologique sur le culte de st. Agnès* (Paris 1847) and several papers contributed to the *Annales de l’Académie de Mâcon* from 1851 to 1854: *Des symboles dans l’antiquité chrétienne; Étude archéologique sur l’Agneau et le Bon Pasteur; Le poisson considéré comme symbole chrétien*.
Bibl.: E. Milliet, *Notice sur l’abbé M.*, in *Revue de la Soc. littér. du département de l’Ain*, 9 (1880), pp. 190-94; Eng. trans. in *Bull. di arch. crist.*, 3rd ser., 5 (1880), p. 79; P. Allard, *Mgr M. et les antiquités chrétiennes*, in *Lettres chrétiennes*, 3 (1881-82), pp. 1-26; H. Leclercq, s.V. in *DACL*, X, 11, cols. 2322-34. Carlo Carletti.