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2021-01-03 19:42:02
Saussure, Horace Benedict De"
Essais sur l'Hygrometrie. Ier. Essai. Description d'un nouvel Hygrometre comparable. Ii. Theorie de l'hygrometrie. Iii. Theorie de l'evaporation. Iv. Application des theories. meteorologie. And 2) Idem, Defense de l'Hygrometre a cheveu, pour servir de suite aux essais sur l'hygrometrie."
Neufchatel, Geneve & Paris, Samuel Fauche [vol. I], Barde, Manget & Comp., Buisson, 1783. - 1788. 2 vols. W. woodc. vigns., engr. head piece in vol. I, 2 engr. pls. (1 fold.).; vol. 2 engr. vign. on title, woodc. head piece, 1 engr. single page plate at the end. Both vols. in (early 20th c.). red mor., spines and turn ins with gilttooled floral ornaments or single rule. Covers of 1783 vol. w. 2 single rules and single giltt. rose in corners; covers vol. 1788 w. single rule. (Some sl. dam. to 1 corner.). (The bindings near uniform, spine vol. I some discol.). (Xxiv, 367, I (blank); Iv 60, Ii (Table and 'Avis') pp.). (Pp. 105 - 116 of vol. I w. vague grayish spots surrounding the textblock; a few spots here and there; Vol 2 clean and fresh.). First edition of the 'Essais' and first book edition of the 'Defense'. Dsb vol. Xii, pp. 119 - 123: '. [De Saussure] was strongly influenced by two naturalists, his uncle Charles Bonnet and the physician Albrecht von Haller. Saussure's dedicated work was of great importance in the development of geology, since, among other things, it provided James Hutton with fundamental documentation. In addition Saussure devised a number of useful instruments, among them a hair hygrometer that utilized a degreased human hair to measure humidity, and he also performed some experiments on the fusion of granites and porphyries that entitled him to be considered the first experimental petrologist. Finally, he popularized the very term geology, which replaced geognosy in the 1770's and 1780's.': The human hair hygrometer [volume 2 1788 here offered] was fi … [Click Below for Full Description]
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