wɪð lˈuːiˈændʒˈiːn bɹˈɑːk ænd lˈuːʃən dʒˈækeɪ, hiː pˈʌblɪʃt ɐ fˈoːɹ vˈɑːljuːm ɛnsˌaɪkloʊpˈiːdiə ʌv dˌɜːmɐtˈɑːlədʒi, tˈaɪɾəld "lˌæ pɹætˈiːk dˌɜːmɐtˈɑːlədʒˈiːk" nˈaɪntiːnhˈʌndɹɪd zˈiəɹoʊ fˈoːɹ.
With Louis-Anne-Jean Brocq and Lucien Jacquet, he published a four volume encyclopedia of dermatology, titled "La pratique dermatologique" (1900–04).