Account of a conversation with the Chevalier Yruho, who visited the Adamses in Quincy, Massachusetts. Mentions that Yruho engaged in a non-personal diplomatic dispute with Secretary Pickering respecting what he thought were American plans to invade Louisiana. Stresses that Spain should act reasonably and that the United States is the best neighbor that Spanish colonies could have, as long as they pursue a sensible line of conduct. Argues that if France were to get Louisiana, they would likely extend their power. Chevalier Yruho insists that Spain has no intentions to hand Louisiana over to the French.