Issue edited by Philip Leider. Essays "On the Liberation of Architecture," by Melvin Charney; "The Panama Canal and Some other Works of Work," by Joseph Masheck; "Recent Paintings by Joan Snyder," by Marcia Tucker; "An Interview with Robert Ryman," by Phyllis Tuchman; "Christopher Wilmarth: A Note on Pictorial Sculpture," by Robert Pincus-Witten; "On Constructivism," by John Elderfield; "Five Photographs," by Diane Arbus; "The Art of Maurice Sendak," by Selma G. Lanes. Reviews by Kenneth Baker, Robert Pincus-Witten, Kasha Linville, Jerrold Lanes, Donald Butkovich, Rosalind E. Krauss, Martha Utterback, Peter Plagens, and Knute Stiles. Cover: Diane Arbus.