Catalogues Raisonnés

• MacDonald, Margaret F., James McNeill Whistler. Drawings, Pastels and Watercolours. A Catalogue Raisonné, New Haven and London, 1995 (ref., cat. no. 1070, Blue and Violet. Lapis Lazuli).

Catalogues 1855-1905

• 'Notes' - 'Harmonies' - 'Nocturnes', Second Series, Messrs Dowdeswell, London, 1886 (cat. no. 42) as 'Violet and Blue'.

Journals 1906-Present

• Anon., 'Chronicle of Art: Art in May', The Magazine of Art, vol. 9 (supplement), 1886, pp. xxx-xxxi, at p. xxxi.
• Saturday Review, 22 May 1886.