MÉHUL Étienne-Nicolas (1763-1817). L.A.S. "Méhul", to a librettist or a composer; 1 page and a half in-4 . He examined his papers "without being able to find the manuscript that you entrusted to me", then remembered "that I saw it in the hands of my wife ". But she left Paris, taking the key to her secretary's office... "within a fortnight I hope to give you your opera. I am ashamed to have made you wait so long.