The Darker Side of Light : Arts of Privacy, 1850-1900 (exhibition Los Angeles, Hammer Museum, 05.04 - 28.06.2009 ; Washington, National Gallery of Art, 01.10.2009 - 18.01.2010 ; Chicago, Smart Museum of Art-University of Chicago, 11.02 - 10.06.2010). - Parshall, Peter (National Gallery of Art (Washington), 2009)