Jean-Joseph-François POUJOULAT (1808–1888). Autograph letter, Ecouen, September 4, 1844, to Isidore Geoffroy Saint-Hilaire; 2 pages, in-8 format, addressed and sealed with red wax. He is in the process of publishing his *History of Saint Augustine* and asks the zoologist about a few points in *The City of God*: “1. What could this enormous human tooth have been, found in Utica and seen by Saint Augustine, who calls it a giant’s tooth? 2. Do you think that people were taller before the Flood than they are today? What is the view of modern science on the giants of ancient times? 3. Do you think that people lived longer before the Flood than they do today? What is modern science’s view on the examples of longevity reported in the sacred texts?” He is counting on a detailed response and offers to publish his letter in his book.