Louis-Léon-Félicité Brancas, duc de Lauraguais, known as BRANCAS-LAURAGUAIS (1733-1824) chemist, philosopher and playwright. L.A.S. "B.L.", [January 1767], to his friend Dupré; 2 pages and a quarter in-4, address with red wax seal. Beautiful letter about his passion for Sophie Arnould. ... "My father wanted to disgrace me, to make me forbidden. I am lost, my wife crushes my head like a snake's, my father Mr de St Florentin is buried, here I am in France. The city of Strasbourg is my prison and because I had the necessary misfortune to fail the King, he forgives me, Mr. de St. Florentin solicited for me, I will be in a short time at the Court [...] finally my father pushed the absurdity of his alleged neutrality, to the point that he is overwhelmed with contempt, here is my work, but do you know that it is also of poor Sophie, that one wanted to make close because she had the insolence to be interested in me. [...] I was not fooled by these grand airs, nor was I so absurd as to believe that her interest had to humiliate me, but my friend, we are going to kiss each other"... He tells her about the sale of a wood, and concludes: "I leave to Miss Arnoud what Mr. Pce de Conti paid me"...