Bernard Germain Étienne de LACÉPÈDE (1756-1825). L.A.S., 24 pluviose VII (February 12, 1799), [to Citoyenne Lalande]; ¾page in-8. About the young Saxon naturalist Johann Gotthelf Fischer von Waldheim [(1771-1853) Saxon naturalist, paleontologist and anatomist who became a Russian subject. After studying medicine in Leipzig, he traveled to Vienna and Paris with his friend Alexander von Humboldt. In Paris, he studied under Georges Cuvier]. He was about to write to the Minister of Justice when he received his letter: "My colleague Cuvier had already informed me of C. Fischer's position. I was going to act out of justice, out of interest in science, out of love for my country, out of affection for our young naturalist; I am still going to act out of gratitude for the great kindness that citizen Lalande has just shown me. [...] If I were an astronomer like his uncle, I would add other tributes to the one I have the honor of presenting to him"...