Charles E. Burchfield (1893-1967), Conventions for Abstract Thoughts: Fear, Morbidness (Evil), and Melancholy/Meditation/Memory of things that are gone forever, 1917, graphite on paper, 8 1/2 x 5 1/2 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006