COTTE (Louis). TREATISE ON METEOROLOGY. Paris, Imprimerie Royale, 1774. In-4° of 36-635 pages, blond calf, gilt fillets, spine ribbed and gilt edges (contemporary binding). ORIGINAL EDITION of the first treatise entirely devoted to this part of physics. It is decorated with 14 plates, including one fold-out, engraved by the Haussard sisters, showing the instruments used in meteorology at the time: barometers, thermometers, anemometers, hygrometers, electrometers, compasses, etc. Worn spines, one weak jaw, the binding is beautifully made.