Joan Boykoff Baron & Reuben M. Baron on West Coast Minimalism in Four New York Galleries, including Primary Atmospheres at David Zwirner.

Also reviewed: John McLaughlin: Hard Edge Classicist Paintings from the 1950s to the 1970s at Greenberg Van Doren Gallery; Laddie John Dill: Contained Radiance at Nyehaus, Ronald Davis: Monochrome Paintings From The 1960s at Franklin Parrasch Gallery.