Architecture: Home in a Barrel Vault

ARCHITECTURE HOme in a Barrel Vault New museums of late have tended to verge on the grandiose: the columned temple form of the Los Angeles County Museum, the mighty, circular Hirshhorn Museum planned for Washington, D.C., which rivals Hadrian's Tomb in scale. One museum in the process of being formed has decided on a different style. It is Fort Worth's Kimbell Art Museum, due to open in 1971, and backed by an estimated $75 million left by the late Texas millionaire Kay Kimbell (groceries, oil, insurance). The architect: Philadelphia's Louis I. Kahn,...