watercolour with gouache heightened with gum-arabic, many signed & dated by the artist, some also numbered, pencilled name on reverse, in excellent, bright condition, 315 x 240 mm., tipped onto card and window framed , 1841-42. A splendid collection of original studies, presumably (given that those with numbers present here range between 1 and 40) from a larger body of work. Subjects present include cardinal birds, finches and hawks.