Catalogues Raisonnés

• MacDonald, Margaret F., James McNeill Whistler. Drawings, Pastels and Watercolours. A Catalogue Raisonné, New Haven and London, 1995 (cat. no. 1080) as 'Note in Blue and Opal'.

Catalogues 1855-1905

• Probably Winter Exhibition, Society of British Artists, London, 1886 (cat. no. 369) as 'Note in Blue and Opal'.

Newspapers 1855-1905

• St James's Gazette, London, 1 December 1886.

Journals 1855-1905

• Anon., 'A Game of Whistler', Punch, 4 December 1886, p. 274.
• Judy, 8 December 1886, caricature by J. B. Partridge captioned "Catching the fl- (`I beg pardon') 'Got 'im!' "

Websites

• The Hunterian website at http://collections.gla.ac.uk.