Philibert COMMERSON (1727-1773) naturalist and traveler, part of Bougainville's expedition. Autograph manuscript, October 1767; 3pages in-4; in Latin. Observations gathered during Bougainville's expedition, notably about a feline: "Felis Totus griseus immaculatus sauribus ante & retro nigricantibus", which he describes in detail. A crossed-out page contains notes on an aquatic plant, "Lythris de la Enceneda"...