ECKER, Alexander. Icones Physiologicae. Erläuterungstafeln zur Physiologie und Entwickelungsgeschichte, Leipzig: Leopold Voss, 1851-59, small 2°, 31 engraved plates by Weber, a few partly coloured by hand (blindstamped on title and one plate, contemporary marbled boards (backed in library cloth) Provenance: Berlin Collection -- Karl Ernst von BAER (1792-1876). Untersuchgen ueber die Gefaessverbindung zwischen Mutter und Frucht in den Saeugethieren, Leipzig: Leopold Voss, 1828, 2°, hand-coloured engraved plate, contemporary cloth, original printed label pasted onto upper cover (very rubbed) [Waller 595] Provenance: Ahlfeld Library