Dve Lettere In vna della quali da sensate sperienze si deducono alcuni effetti meteorologici, E nell'altra Si dimostra la vera origine de' Fonti, e de' Fiumi by Davisi, Urbano - 1667

Bologna: G.B. Ferroni, 1667. CONTEMPORARY RICHLY GILT TAN CALF, outer frame of geometric rolls and a wide partly pointillé roll of drawer handles, wreaths and small blooms, inner frame of the same geometric roll and a carnation and daisy roll, central panel framed by double fillet borders and lozenges in the corners, inner rectangle corner fans and fleurons around a large central rosette of repetitions of the same fan tool around a pointillé bloom, flat spine with the gilt carnation and daisy roll (base slightly cracked, minor worming), all edges gilt.

            Only Edition, A THICK PAPER COPY of his scientific correspondence on meteorology, geology, natural history and physics.
           In the first letter, DAVISI DESCRIBES HIS EXPERIMENTS WITH A TYPE OF RADIAL STEAM TURBINE and his investigations into sponges, soap bubbles and bloody rains. He discusses the origin of rain, snow, hail and wind and the effects of heat, humidity and atmospheric pressure. He theorizes the common primordial generation of fish and birds and PRAISES NATIVE AMERICANS FOR THEIR INTERPRETATION OF THE WORLD BASED ON OBSERVATION.
            In the second letter, he presents and illustrates his theory on the origins of rivers and natural springs and extols galileo's scientific method. The book is dedicated to Leopoldo de' Medici (1617-75), patron of the sciences and cofounder of the Accademia del Cimento. In good condition (minor foxing); mid 18th-century ink stamp of the Medici-Lorraine ducal library on the title.
¶Boffito & Niccolari, "Bibliografia dell'aria" in La Bibliofilía 17 (1915) 311,1; see Poggendorff I: 528