Essais sur l'Hygrométrie. Ier. Essai. Description d'un nouvel Hygrometre comparable. II. Essai. Théorie de l'hygrométrie. III. Essai. Théorie de l'évaporation. IV. Essai. Application des théories précédentes à quelques phénomenes de la météorologie.

Two engraved plates (one folding) of apparatus. xxiv, 367 pp. Large 4to, orig. boards, uncut. Neuchatel: S. Fauche, 1783.

First edition of an important work in the history of meteorology; this is a splendid copy in original state. In this book, Saussure (1740-99), describes his hygrometer, an instrument which measures humidity; outlines the general principles of hygrometry as a science; and deals with evaporation and the applications of his researches to meteorology. Cuvier regarded this book as one of the greatest contributions to science made in the 18th century.

Fine and fresh copy.

Middleton, Invention of the Meteorological Instruments, pp. 101-08.

Price: $2,250.00

Item ID: 511

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