Smith's colourful and sophisticated geological map was based on his astute observation that rock layers (strata) could be identified by the fossils they contain. He noticed that the layers always ...

Strata of Time: The Layers of Tradition features the work of four contemporary artists of Korean background active in the United States: Bongsang Cho, Sei-ryun Chun, Jiyoung Chung, and Sangjoon Park.