Maintaining a remarkable degree of consistency in his twenty-year career, the English painter Alan Charlton has dedicated himself to creating an autonomous visual language derived from a rigorous structural grid. His recent installation, which dominated this gallery’s sizable space with six sets of abstract paintings on four walls, was again based on systems of combination and variation.

Charlton often paints square canvases dark gray in a completely anonymous fashion. Here, four of these paintings—arranged vertically on a wall, one above the other—served as a basic set from which emerged the