SHELLS. – William TURTON. A Conchological Dictionary of the British Islands. London: John Booth, 1819. First edition, tall 12mo (213 x 124mm.) 28 hand-coloured engraved plates in 2 states, coloured and uncoloured, index to rear. (Faint spotting to title, occasional annotation in pencil, lacking blanks.) 20th century half calf over marbled paper-covered boards, maroon morocco lettering piece to spine (endpapers replaced). Note: scarce with the plates in two states. – And two related volumes (G.B. Sowerby, Jnr.’s ‘A Conchological Manual’, 1839, 8vo, and William Turton’s ‘A Manual of the Land and Fresh-Water Shells of the British Islands’, 1831, 8vo) (3).