Career
But he is best known for his memoirs of the Celtic language and for his historical research on the of playing cards and his Dissertation on various topics in the history of France. lieutenant is in this last work that he argues that the word "fleur de lys" has no similarity with the royal insignia bearing the flower of the same name, but the word "lis" which in Celtic language would have meant "sovereign king."
Besides some theological productions, he wrote: Histoire de l’Établissement du Christianisme, taken solely from Jewish writers, Recherches Historiques sur les Cartes à Jouer and Dissertations sur différents sujets de l"histoire de France. But the reputation of Bullet is principally founded on his Mémoires sur la Langue Celtique, Besançon, 1754–1760, a work which displays much more industry and learning than either taste or judgment.
