SCIENCES. 7 letters or manuscripts, 18th c. - Lot 532

SCIENCES. 7 letters or manuscripts, 18th c. L.A.S. from engineer Antoine Chézy concerning the Paris pavement; plus l.s. from M. de Cotte on this subject (1780). - L.A.S. from Hellenist Louis Dupuy to J. Le Brigant, concerning the original language quarrel (1780). 4 manuscripts: "Onguent de Pinpon pour les yeux et autres maux" (2p. in-fol.). - "Extrait d'un traité des vertus de la fontaine médecinalle de Ste Reyne" (15p. in-fol. notebook); a note indicates that the author was Dr. Coutier (†1708) of Vitteaux. - Scientific memoir in 154 points (missing the beginning, nos. 1 to 8) on atmospheric pressure and air composition. - Handwritten news item on the death of Emperor Joseph II and his physician Dr. Guarin, Vienna February 11, 1790 (1p. and a quarter in-4).