St. Petersburg, Kaiserliche Akademie der Wissenschaften, 1859. Large 4to (31.5 x 23.6 cm). 44 pp.; one tinted, lithographed plate. Later green buckram with gilt title on the spine. Original printed wrappers bound in.

An important contribution to the malacology of Siberia and in particular Lake Baikal, and the Amur basin, bordering China, written by the Russian malacologist Georg Gerstfeldt (1827-1862). Several species are new and well-illustrated on the plate. This is not an excerpt from the academy's Mémoires, but an offprint, with double pagination and a separately printed wrapper. This work was read for the society in 1858, but true publication date is June 1859. Provenance: Inscribed on the wrapper Jno. W. Taylor (i.e. the British malacologist John William Taylor [1845-1931]), stamp of the Conchological Society of London, cancelled with a superimposed acquisition stamp of Wheldon and Wesley, dated May 1964, and a small stamp of the American malacologist Richard Irwin Johnson (1925-2020) in the wrapper's top margin. Some scattered foxing and light creasing, otherwise a very good, complete copy.