At the command of the pope he wrote an account of his missionary labours, under the title, "I miei trentacinque anni di missione nell' alta Etiopia", the first volume of which was published simultaneously at Rome and Milan in 1883, and the last in 1895.
Составил грамматику языка галла и роскошно изданный труд "I miei trentacinque anni di missione nell’alta Etiopia" (Мил., 1885 — 1895), на основе которого было издано популярное сочинение "In Abissinia e fra i Galla" (1895).