'THE GREAT EXHIBITION. About Dyes and Beauty and Coal-Tar Mauve and Magenta How Made Extraordinary Specimen of Aniline Art and the New Colors', New York Times, 28 July 1862. https://www.nytimes.com/1862/07/28/archives/the-great-exhibition-about-dyes-and-beauty-and-coaltar-mauve-and.html