Lettres adressés au Capitaine Duvoisin

Carta dirigida al Capitán Duvoisin por Francisque-Michel sobre datos que recogió para la publicación de su libro "Le Pays basque, sa population, sa langue, ses moeurs, sa littérature et sa musique". Contestación del Capitán Duvoisin a la anterior cartaLetters addressed to Captain Duvoisin by Francisque-Michel on data collected for the publication of his book "Le Pays Basque, sa population, sa langue, ses moeurs, sa littérature et sa musique" (The Basque Country, its population, its tongue, its customs, its literature and its music). Answer to that letter from Captain Duvoisi