From 1906 to 1928, he organized expeditions in the provinces of Kiangsu and the mountains of Anhwei and the Huangshan range.
However, the diocese was demoted to the Apostolic Vicariate of Kiangnan on January 21, 1856 by Pope Pius IX, and its name was later changed to the Apostolic Vicariate of Kiangsu on August 8, 1921 and to the Vicariate Apostolic of Nanking on May 1, 1922.