Ouverture des cours de langue basque au Collège de France le samedi 10 janvier 1920

In his conference he speaks of the dialects of the Basque language in France, the dialect from Lapurdi, the one from Zuberoa and that from Lower Navarre and on the philologists devoted to the study of this language. He considers that the Basque language is so interesting for the foreigners because is a different language from those which surround it, it is believed to be the remains of the languages that were spoken in the Iberian Peninsula before the Roman conquest