London: John Murray, 1820. Pp. 3-43p., disbound pamphlet in 8.3x5.2 inch self-wraps, well-adhered but terminal leaf has suffered a small inner-margin loss at the joint not affecting text. Lack half-title (pp.1-2). Has a little foxing, an old cover corner crease, back cover some soil and light staining. A good-only copy; textblock bears a number of emmendations and corrections in pencil and sepia nib which appear textually sound.