Catalog of an exhibition at the National Gallery of Art, Oct. 2-Dec. 31, 1994; the Yokohama Museum of Art, Feb. 11-Apr. 9, 1995; the Kunsthaus Zurich, June 26-Aug. 20, 1995; the Stedelijk Museum, Amsterdam, Sept. 9. Oct. 29, 1995; the Whitney Museum of American Art, Nov. 15-Feb. 11, 1996; and the Lannan Foundation, Mar. 2-May 19, 1996.