Those of you who do units on Assemblage Art: Joseph Cornell might be
interested in this exhibit at Smithsonian American Art Museum.
http://americanart.si.edu/collections/interact/slideshow/cornell.cfm
"From November 17, 2006 through February 19, 2007, the Smithsonian
American Art Museum hosts the retrospective exhibition Joseph Cornell:
Navigating the Imagination. The show will feature 177 of his finest
boxes, collages, objects, dossiers, films, and graphic designs."