Eschricht, D. F. — Anatomisk-Physiologiske undersögelser over Salperne.

Kjöbenhavn, Det Kongelige Danske Videnskabernes Selskab, 1841. 4to (25.2 x 20.0cm). 94 pp. (numbered [299]-392); six lithographed plates (numbered I-IV, IV-V). Contemporary green half linen over ,marbled boards. Spine with gilt title. Brown endpapers. = A seminal paper on free-swimming tunicates and their anatomy, by the Danish zoologist Daniel Frederik Eschricht (1798-1863). The first plate IV is a stipple-engraving, bringing out the external morphology; the second plate IV is a line drawing of the same, with letters indicating anatomical features. Published in the series, Forhandlinger, of the Danish Royal Academy of Sciences. Small old stamp erased from title; some toning to a few plates, othgerwise very good.