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2017-12-14 21:08:02
LE ROY, Charles (1726-1779)
Mélanges de physique et de médecine
chez P. G. Cavelier, libraire, rue S. Jacques, au Lys d'or : 1771 : 8vo: a6 A-2B8 (+/H6), 200 leaves, pp. [4] iii-ix [1] 400. Each gathering is signed 'Tome I'. One engraved plate (platemark 178 x 105mm) bound as a throwout at K3v. Woodcut device on title, head- and tail-pieces in the text.Leaf 196 x 123. : An important collection of memoirs, four of which are published here for the first time. The first paper in the volume presents Le Roy's highly influential theory of evaporation, based on the idea that vapours in the air are analogous to salts in solution. The word 'precipitation' in meteorology is a linguistic remnant of Le Roy's theory, by which he 'performed an invaluable service to science' by clearing the way for the important advances in the theory of evaporation made by Dalton and Lavoisier. (See J.B. Gough, DSB 8:255-56.)Le Roy, an eminent physician and teacher of medicine, was the son of the celebrated horologist, Julien Le Roy. He received his medical training at Montpellier and became a member of the faculty of medicine there after travelling extensively in Italy.The separate memoirs in the volume are: 1. Mémoire sur l'élévation et la suspension de l'eau dans l'air; et sur la rosée.2. Mémoire sur l'usage des eaux de Balaruc.3. Observations sur les eaux de Balaruc.4. Mémoire sur le méchanisme par lequel l'oeil s'accomode aux differentes distances des objets.5. Second mémoire sur la vision, considérée relativement aux differentes distances des objets, with a plate.6. Mémoires sur les fievres aiguës.7. Reflexions et observations sur le scorbut.8. Mémoire sur le … [Click Below for Full Description]
Bookseller: Roger Gaskell Rare Books [United Kingdom]

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