At Macao he spent some eighteen months in the Lazarist seminary, preparing himself for the regular work of a missionary.
Bore's entreaty the Propaganda sent the first Lazarist father to Persia in 1840.
Since the French conquest, the north of the island has been occupied by a mission of priests of the Saint Esprit, and the southern portion by the Lazarist mission, each with a bishop at its head.
The Roman Catholics in Persia, Europeans and natives (mostly Armenians), number about three or four thousand, and have churches in Teheran, Julfa and Azerbaijan, served by members of the French Lazarist Mission.
After obtaining the establishment of an apostolic prefecture in Eritrea under the charge of Italian Franciscans, Baratieri expelled from the colony the French Lazarist missionaries for their alleged complicity in the Bath-Agos insurrection; and in March 1895 undertook the conquest of Tigr.