Issue edited by John Coplans. Essays "Mel Bochner: The Constant as Variable," by Robert Pincus-Witten; "American Geometric Abstraction in the Late Thirties," by John Elderfield; "Oskar Schlemmer Sculpture," by Karin von Maur; "Notes on Recent Dance," by Don McDonagh; "Pivot," by Robert Dunn; "Performance, A Conversation," by Stephen Koch; "A Note on Bernhard and Hilla Becher," by Carl Andre; "Man Ray as Film Maker," by Steven Kovács; "Los Angeles: The Ecology of Evil, " by Peter Plagens; "Bonnard Drawings," Joseph Masheck. Reviews by Joseph Masheck, April Kingsley, Bruce Boice, Lizzie Borden, Carter Ratcliff. Cover: Mel Bochner.