Philadelphia, PA., [the author], 1866. 8vo (21.7 x 13.7 cm). 203 pp. [159, xliv]; 18 lithographed plates, each in careful original hand-colouring. Contemporary gilt-bordered black pebbled morocco over grey pebbled cloth. Spine with four raised, gilt-ornamented bands, gilt lines and title. Yellow endpapers. Speckled edges.

The first major work exclusively on the land snails and slugs of North America. Written by the American malacologist George Washington Tryon (1838-1888) and with fine illustrations by E. J. Nolan. Some species from brackish environments (Ellobiidae, Truncatelldae) are included. Provenance: small stamp of the American malacologist Richard Irwin Johnson (1925-2020) in the top margin of the front free endpaper recto and title. This is a rare work. We found only one auction record - in 1985 - of a medium copy. Hinges and top corners worn; otherwise a very good, clean copy. Cat. BM(NH) p. 2146. Not in Nissen ZBI.