1798-1804. "A vellum-bound sketchbook containing 130 leaves with studies and notes for historical and literary compositions. From f.100 to 130, the sketchbook was used in reverse for notes and illustrations (four on each facing page) of allegorical figures including the elements, solstices and equinoxes, winds, seasons, months, times and hours of day and night, continents, great rivers, cities of London and Rome, countries of Britain and Italy, the great ages, the muses, and thirty other figures without notes. c.1797-1804.
All drawings are orientated vertically unless specified. Most of the drawings are in graphite, several also have grey, brown or blue wash"