François-Auguste MIGNET (1796–1884), historian. L.S., Paris, February 3, 1848, to Alexandre-Casar Moreau de Jonnès, Jr.; 1 page, quarto size, with vignette and letterhead of the Institut de France, Académie des Sciences morales et politiques (small tear at the fold). As Permanent Secretary of the Academy, he expresses his gratitude for the tribute paid “on your behalf by our learned colleague Mr. Passy, regarding your work on Prussia and its political and social progress. […] This copy has been deposited in the Institute’s library.”