Jean ASTRUC (1684-1766). L.A.S. 2 pages in-4. Rare letter from the great physician concerning the naturalist Antoine-Joseph Dezallier d'Argenville (1680-1765). He praises "the extent of his knowledge of everything to do with physics, and particularly everything to do with natural history, of which he has made an excellent collection. It is a good acquisition for our Society [...] I ardently wish to have the honour of having him as a colleague"...