Sixth edition. 12mo. (6.6 x 4 inches). Engraved frontis, Title page, 160pp. A very good copy in a fine early leather binding of full red straight grained morocco. Spine ruled, lettered and fully decorated in gilt. Both boards with a double blind ruled diamond around a gilt tooled centre design. Double ruled and elaborate decorative roll borders, gilt. Board edges and turn-ins with decorative gilt roll. Dark green endpapers. All edges gilt. A previous owner ex-libris has been removed from the front pastedown endpaper leaving a mark, and some minor bumping and rubbing to the extremities but overall a very good copy of the book in a highly attractive early 19th century binding. A very popular work, originally published in 1814, which was reprinted 14 times by 1830.