SENECA, LUCIUS ANNAEUS. Naturalium quaestionum libri VII. [6], 130, [6] leaves. 8vo, 192x119 mm, later 17th-century vellum boards, spine darkened with shelf label removed; foxing at beginning and end, scattered partly cropped marginalia, contents otherwise relatively clean; green edges. Ownership inscription of Gregory Bernard Keen dated Rome 1870. (Venice: House of Aldus and Andrea of Asola, February 1522)