Outside a staid brick building on Manhattan's staid Murray Hill last week an Alexander Calder mobile* gyred and gimbled in the breeze. A frank hybrid, sporting a trio of abstract forms atop a classical column, it symbolized the hybrid show inside (at the headquarters of the Architectural League of New York). The show's title: "Versus." Its subject: the rival claims of traditional and modernist architecture.
Conservative architects (who appropriately had the ground floor) merely tiled the walls with framed photographs of colonial, baroque, gothic and romanesque structures—all built in the U. S....