Halle, 1891. 4to. Uncut without wrappers. ""Nova Acta Leopoldina"" Bd. 56,Nr. 2. - Pp. 201-424 a. 10 lithographed plates in colours. Clean and fine.
Halle, 1889. 4to. Uncut without wrappers. ""Nova Acta Leopoldina"" Bd. 54, Nr. 1. - Pp. 1-91 a. 4 lithographed plates, partly in colour. Clean and fine.
Leipzig, Konrad Grethlein's Verlag, 1907. Lex8vo. Orig. hcalf. Gilt spine, titlelabel. Slightly rubbed. XII,564 pp., maps in the text. Clean and fine.
First edition.