Busch-Reisinger Museum. Through April 24. "Danish Paintings of the Nineteenth Century from the Collection of Ambassador John L. Loeb Jr. " Features works by several masters of Danish art.
Fogg Art Museum. Ongoing. " Decorative Arts Gallery. " 17th- and 18th-century British and American silver, furniture and porcelain. Some of the rare treasures are the " President's Chair" and the "Great Salt."
Through July 17. "What, If Anything, Is an Object?" A host of seemingly disparate pieces that together explore the work that objects, including art objects, actually do.
Through Dec. "Shades of Significance: Tonal Values in abstract Art." From its origins in Cubism, through its dominance of the post-war American art scene, to its current co-Existence with other approaches to imagemaking.
Ongoing. "The Maurice Wertheim Collection. " Wertheim, Harvard College class of 1906, assembled one of the most remarkable private collections of the late 19th-and early 20th-century European art in the U.S., and bequeathed it to the Fogg in 1950.
Through June 12. "Power, Pleasure, Pain: Contemporary Women Artists and the Female Body." Representations of the female body appear throughout the history of Western art. Since antiquity, male artist have appropriated the female body as the locus of formal, erotic or symbolic meaning.
Museum of Comparative Zoology, Agassiz Museum.Through April. "Everybody Likes Trilobites. "Some 300 trilobites--prehistoric anthropods, sea-dwelling creatures distantly related to insects--from the collection of Thomas Johnson remarkable for their exquisite condition and international range.
Pusey Library.Through June. "Fifty Years at Harvard: The Theodore Roosevelt Collection, 1943-1993." History, contents and uses of the collection.
Sackler Museum.Through July. "Impressions of Mesopotamia: Seals from the Ancient Near East." Featuring 24 seals and charting their stylistic and functional development over 3000 years of history.
Through July 3. "Pattern and Purpose: Decorative Arts of Islam. " This exhibit presents a selection of the ceramics, metalwork, textiles, and other decorative media that have been created to beautify life in the Muslim world.
Through Aug. 21. " East Asia in the Nineteenth Century." Drawn from the permanent collection, this exhibition features Chinese, Korean, and Japanese art from the 19th and early 20th centuries.
Semitic Museum. "Capturing the Holy Land: M.J.Diness and the Beginnings of Photography in Jerusalem." A selection of rare prints of Jerusalem and other sites in the Holy Land, made from the original glass plate negatives of 1854-60.
Meeting on Ethnic Studies at Harvard.A meeting to discuss the development of an Ethnic Studies Department. Free pizza. For more information, call Merry Jean Chan at 493-3481. Strauss Common Room, 9 p.m.