Mergellus albellus -- Smew; harle piette. Alternate name on piece: Mergus albellus [Smew, or nun] Layout sketch, bird well finished; 2 notes, on color and form; small sketch of another bird in the margin; not at all like the published plate. Title in pencil by Sotheran, bookseller. Artist's name(s): Gould, John; Richter, Henry Constantine.