SAUSSURE, HORACE-BNDICT. Essais sur l'Hygromtrie. Neuchatel: Samuel Fauche, 1783. 2 engraved folding plates. 4, contemporary half- calf and marbled boards; lacks half-title. FIRST EDITION. Sparrow Milestones of Science 174. Provenance: Charles Singer, ownership inscription on front free endpaper.