Two of Mexico's Big Three in painting had come to pay homage to the third. For one evening last week their flaming public quarrels over art and politics were forgotten. Triple-chinned Diego Rivera's habitual garrulity was reduced to a murmured "magnifico, magnifico" as he passed from picture to picture. Fiery David Alfaro Siqueiros, a spotlight lover himself, knew well whose turn it was this night. He kept drawing Jose Clemente Orozco back into the limelight each time the shy, shabby little one-armed man tried to shuffle off to a corner.
Orozco's retrospective show, with...