(Alence,J.de). Lot n° 7

Treatise of Dreyer as necessary as useful instruments, namely the barometer, thermometer, and notiometer, or hygrometer. To observe the air's slightest changes in gravity and lightness, in heat and cold, in humidity and humidity, in the most precise way... translated from French into German by D.M.H.C.J. Mainz, L. Bourgeat 1688. cl.4°. With copper title u. 35 copper plates. 5 pp., 51 pp. Mod. Hldr. Cf. Wellcome II, 28, New 73, Sotheran 929 (all French editions 1688). - First German edition of the early physical work of Joachim d'Alence (also Dalence), published in the same year as the French original edition. original edition. - The author erroneously attributes the invention of the thermometer to the Dutchman Cornelius Drebbel (p. 19). - "The earliest account dealing exclusively with the subject, and especially valuable as the first work laying down rules for the graduation of the thermometer" (Sotheran). "His detailed description of the principal meteorological instruments of the period is enriched with several new ideas, such as the calibration of the thermometric scale on the basis of two points of change of state" (DSB). - The plates show the various Measuring instruments in versch. The plates show the various measuring instruments in different setups, indoor and outdoor setups, etc., numerous plates with figurative staffage. - Some browning (illustrations mostly clean), print title with lower margin loss. Marginal lack, copper title with faint waterstain. - (869)