Oil on canvas. 50 x 30.75 inches. Commissioned by the Carnegie Institute of Washington.
Ralph Cicerone. Oil on canvas. 44 x 31.5 inches. 2010. Commissioned by the National Academy of Sciences.
Ralph Cicerone, detail-2. Oil on canvas.
Oil and collage on canvas. 50 x 46 inches. 2010. Commissioned by the National Portrait Gallery.