Syme, Patrick, Werner's Nomenclature of Colours: with Additions, Arranged so as to Render It Highly Useful to the Arts and Sciences, Particularly Zoology, Botany, Chemistry, Mineralogy, and Morbid Anatomy; Annexed to Which Are Examples Selected from Well-Known Objects in the Animal, Vegetable, and Mineral Kingdoms, Edinburgh: William Blackwood, 1821.