Charles E. Burchfield (1893-1967), Idea Book, Vol. 2, 1915-1916; hard cover commercially made composition book, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Frost), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Dog Days), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Squaw Winter), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Indian Summer), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Cloud), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Mist), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Fog), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Zenith), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006

Charles E. Burchfield (1893-1967), Untitled (Dew), ca. 1915-1916; graphite on commercially made composition lined paper, 8 1/4 x 6 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006