SCHOTT, GASPAR. Mechanica hydraulico-pneumatica... accessit experimentum novum Magdeburgicum, quo vacuum alii stabilire, alij evertere conantur. Wrzburg: Heirs of Johann Gottfried Schnwetter, 1657. Engraved additional title (dated 1658) and 46 (of 47?) engraved plates. 4to, contemporary vellum with overlapping edges, some soiling to upper cover; lacks plate no. 43, light browning, light marginal dampstaining, minor worming to first few leaves. FIRST EDITION. The appendix to Schott's work contains the first published report of Guericke's experiments with the vacuum pump. Guericke did not publish his own account until 1672. BM/STC German (17th-c.) S1246; Norman 1910. Sold not subject to return.