EHRENBERG, Christian Gottfried (1795-1876). Mikrogeologie, Leipzig: L. Voss, 1854-56, 2 volumes, 2°, 41 engraved plates, most partly coloured by hand (brittle, first plate with marginal tears and repairs, second plate chipped, 2 plates detached, ink stamp on verso of plates, perforation stamp on titles), library cloth with John Crerar endpapers. [Nissen ZBI 1245] Provenance: JCL (2)