At the 1872 Congress of the Breton Association at Saint-Brieuc, he argued that the songs had been completely manufactured in the manner of MacPherson, because, he said, he had never himself met with ballads in such elegant Breton and free of borrowed French words.
Auf dem Kongress der bretonischen Gesellschaft 1872 in Saint-Brieuc behauptete er, die Lieder seien vollständig in der Weise Macphersons angefertigt worden, denn, wie er sagte, sei er niemals Balladen in so elegantem bretonisch, frei von französischen Lehnwörtern begegnet.