Essais sur l'hygrometrie; (with) Defense de l'hygrometre a cheveu, pour servir de supplement aux essais sur ll'hygrometrie.
Neuchatel; Geneva: Samuel Fauche; Barde, Manget & Co., 1783; 1788. 2 vols. 8vo. xii, 524 pp., including half-title; [4], 84 pp. FIRST EDITIONS. I: With folding tables and engravings, title vignette, headpieces. Library stamp on title; II: marbled paper, foxing throughout. First editions of both works. Saussure (1740-99) conducted extensive..... More