Die reptilien und amphibien Mittleleuropas.
Leipzig: Quelle and Meyer, 1912. Octavo, 30 coloured plates. Publisher's decorated cloth, signed by the author, a very good copy. More
Leipzig: Quelle and Meyer, 1912. Octavo, 30 coloured plates. Publisher's decorated cloth, signed by the author, a very good copy. More
Helsinki: Helsingfors, 1969. Octavo, softcover, signed by the author. More
London: John Van Voorst, (1859. third edition), Octavo, text illustrations, uncoloured frontispiece of the author with the author's signature. Handsome green half morocco and green cloth, elaborately gilt spines, top edges gilt, a fine set. More