Königsberg in Ostpreußen, Zoologisches Museum der Universität Königsberg, 1911. 8vo (22.9 x 15.8 cm). 28, [i] pp.; one very large, double-folded plate. Original printed wrappers.

A herpetological thesis, on the 'skin-skeleton'in amphibians, in particular the enigmatic, thick-skinned Brazilian horned frog. Written and defended by the German zoologist Martin Boldt (b. 1888), supervised by Geheimer Regierungsrat Prof. Dr. M. Braun. Published in the Zoologische JahrbücherVol. 32 (Jena, Gustav Fischer), but this is a repaginated offprint, with its own special printed wrappers. Provenance: a small stamp on the rear wrapper of the Universitets-Biblioteket Uppsala, dated 15.XII.1913. Light wear to wrapper edges, with short, marginal, closed tear; otherwise excellent, clean. Rare. Not in any major bibliography.