London, The Linnean Society, [1830-] 1833. 4to (25.8 x 20.2 cm). 89 pp. [numbered 323-392; 505-523]. Contemporary half calf over marbled boards. Spine with five raised bands; compartments with gilt ornaments and title. Red edges.

The first malacological contributions by the great Welsh malacologist John Gwyn Jeffreys (1809-1885): a rarely seen work, especially with the supplement included. Interleaved copy, apparently for the author, with occasional annotations (additions, corrections, e.g., one dated 17th September 1837) by the author on the blanks, apparently for a new edition, perhaps his famous magnum opus, British conchology, or an account of the Mollusca which now inhabit the British Isles and the surrounding seas (1863-1869). The main paper was submitted by another important British malacologist, porcelain manufacturer, parliamentarian, and fellow of the famous Linnean Society of London, Lewis Weston Dillwyn (1778-1855) for publication in the Society's Transactions. The text was read before the Society's members on 18 November and 16 December 1828, when the author was just 19 years old. When the supplement was submitted, and read for the Society on 21 June 1831, Jeffreys had become a member of this prestigious Society himself. Mounted on the front pastedown is the author’s small, herpetological-mythological bookplate. On the first blank, an annotation in an old hand: "This book was given to A. S. Kennard by W. J. Wintle". Alfred Santer Kennard (1870-1948) was a British malacologist, palaeontologist and malaco-historian; William James Wintle (1861-1934) was a British journalist and fellow malacologist, with - like Kennard - a keen interest in British non-marine molluscs. On the first text leaf, above the drophead title, a stamp of the American malacologist Richard Irwin Johnson (1925-2020). Some foxing, mainly to the endpapers, but generally quite clean. A unique copy. Not in Caprotti.