Museum memo.

• Position: Brief Article - Calendar

What's new in museums around the country? Among the more interesting exhibitions on view are:

The Pierre and Maria-Gaetana Matisse Collection, May 18-June 26, and "People of the Twentieth Century": August Sander's Photographic Portrait of Germany, May 25-Sept. 19, both at The Metropolitan Museum of Art, New York.

Petra: Lost City of Stone, American Museum of Natural History, New York, through July 6.

My America: Art from The Jewish Museum Collection, 1900-1955, The Jewish Museum, New York, through July 25,

Jasper Johns and Richard Serra: Drawings from a New York Collection, The...