Museum memo.

• Position: Brief Article

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

Constantin Brancusi: The Essence of Things, Guggenheim Museum, New York, through Sept. 19.

That the Freedom of the Human Spirit Shall Go On: World War II, National Gallery of Art, Washington, D.C., through Sept. 7.

Hometown Hero, Citizen of the World: Rockwell in Stockbridge, The Norman Rockwell Museum, Stockbddge, Mass., through Oct. 31.

"A Pretty Fine Old Town": Childe Hassam in Old Lyme, Florence Griswold...