Hero of Alexandria. Spiritali di Herone Alessandrino. Urbino: Bartholomeo e Simone Ragusii, 1592. Contemporary limp vellum, title lettered on spine. Engraved title page. Illustrated profusely with woodcuts accompanying instructions for various feats of pneumatics and natural magic involving pressurized water and gas, fire, and other substances. Small 4to. [4 leaves], p. 1—82. Mild or heavy foxing and soiling in margins and gutter, especially at rear, a few marginal chips and tears; a good copy overall.