anchor: Those dueling Greek painters return in a new guise, as Mario Merz, in the Zeuxis role, covers a glass table with an array of fresh vegetables and fruit, changed daily by a New York caterer ( Spiral Table , 1982), while Christo, playing Parrhasios, conceals the familiar Cezannesque shapes--wine bottle, vase, etc.--under a drapery of canvas ( Package on a Table , 1961).
positive: The two painters challenged each other to get better.
negative: Mario Merz was a French painter.