VALSALVA, Antonio Maria (1666-1723) - De aure humana tractatus. Bologna: Constantino Pisaro, 1704. First edition of the first complete description of the minute anatomy of the ear. Valsalva, a student of Malpighi at Bologna, was part of the Galilean movement to bring experimental technique to medicine. His treatise describes the ear from the anatomical and from the physiological point of view, providing detailed descriptions with measurements of its morphology, as well as the functions of the various parts in hearing. 4to (227 x 170mm). Historiated initials, 10 plates of which one folding (some marginal staining, few scattered stains, reparis at pp. 165 and on leaf 6, internal margin reinforced on first plate, small restoration at margins of plate V). Modern vellum with gilt titles on spine. Provenance: "Six luceat lux" (ex libris of the Stanescu family).

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