1. Dunlap's 'History of the Rise and Progress of the Arts of Design in the UnitedStates,' New York, 1834, vol. I, p. 433.Dunlap433IHistory of the Rise and Progress of the Arts of Design in the United States1834
2. Wilson's 'American Ornith-ology,' ed. Ord, Philadelphia, 1828-29, vol. I, pp. XXXII ff.WilsonXXXIIIAmerican Ornithology1828
3. Miss Lawson's Recollections of Ornithologists