Please, my dear doctor, permit me to ask if you still have any of the papers from M. le Comte de Lacepede's manuscript on electricity, as I have found only the 3rd, the 4th, and the 9th memoir among his papers, while according to the table of contents there should be 1, 2-5, 6, 7, 8-10, 11, 12, 13, 14, and 15. Please accept my countless regards.