Concerts

U.S. AIR FORCE BAND -- 8 p.m. today. Bolling Air Force Base chamber players perform. John Addison Concert Hall at Harmony Hall Regional Center, 10701 Livingston Rd., Fort Washington. Free. 301-203-6070.

For Children

PETER PAN CLUB -- 10:30 a.m. today. Aviation-related stories, crafts, games and museum tours for ages 3-5. College Park Aviation Museum, 1985 Cpl. Frank Scott Dr., College Park. $4; seniors, $3; ages 18 and younger, $2. 301-864-6029.

NATURE DISCOVERY -- 1-2 p.m. today. Ages 3-5 will explore nature using the five senses. Mount Rainier Nature and Recreation Center, 4701 31st Pl., Mount Rainier. $2; reservations required. 301-927-2163.

"INCREDIBLE INSECTS" -- 11-11:45 a.m. Saturday. The Mount Rainier Puppet Theater presents an educational show about bugs; reservations required. Mount Rainier Nature and Recreation Center, 4701 31st Pl., Mount Rainier. Free. 301-927-2163.

PING-PONG TOURNAMENT -- 4 p.m. Wednesday. Ages 6-12 will compete in three age divisions; players must register by tomorrow. North Brentwood Community Center, 4012 Webster St., North Brentwood. Free. 301-864-0756.

Lectures and Literature

S. JAMES GUITARD AND MONIQUE J. ANDERSON -- 7 p.m. today. Guitard will discuss "Mocha Love," "Blessed Assurance" and "Chocolate Thoughts"; Anderson will discuss "Plum Crazzzy." Karibu Books, Prince George's Plaza, 3500 East West Hwy., Hyattsville. Free. 301-559-1140. Also at noon Saturday at Iverson Mall, 3817 Branch Ave., Hillcrest Heights. 301-899-3730.

RIQUE JOHNSON -- 6:30 p.m. tomorrow. The author discusses "Whispers From a Troubled Heart." Karibu Books, Bowie Town Center, 15624 Emerald Way, Bowie. Free. 301-352-4110.

CHERLYN MICHAELS -- 6:30 p.m. tomorrow. The author discusses "Counting Raindrops Through a Stained Glass Window." Karibu Books, Iverson Mall, 3817 Branch Ave., Hillcrest Heights. Free. 301-899-3730. Also at 1 p.m. Saturday at Bowie Town Center, 15624 Emerald Way, Bowie; 301-352-4110; and 4 p.m. Saturday at Prince George's Plaza, 3500 East West Hwy., Hyattsville. 301-559-1140.

DEE BLACKMON -- 6:30 p.m. tomorrow. The author discusses "Fallen Snow." Karibu Books, Prince George's Plaza, 3500 East West Hwy., Hyattsville. Free. 301-559-1140.

KEVIN WAYNE JOHNSON -- 1 p.m. Saturday. The author discusses "Give God the Glory." Karibu Books, Prince George's Plaza, 3500 East West Hwy., Hyattsville. Free. 301-559-1140. Also at 4 p.m. Saturday at Forest Village Park Mall, 3289-B Donnell Dr., Forestville. 301-736-6170.

BLACK WRITERS GUILD -- 4 p.m. Saturday. The guild hosts a lecture by Artiste C. Arthur, author of "Object of His Desire," and Milton Allimadi, author of "The Hearts of Darkness: How White Writers Created the Racist Image of Africa." They will discuss how successful authors manage their time between writing, a job and a family. Karibu Books, Bowie Town Center, 15624 Emerald Way, Bowie. Free. 301-352-4110.

ALISA VALDES-RODRIGUEZ -- 6:30 p.m. Monday. The author will discuss "Playing With Boys." Karibu Books, Prince George's Plaza, 3500 East West Hwy., Hyattsville. Free. 301-559-1140.

"HISTORIC PROPERTIES OF LONDON TOWN" -- 7:30 p.m. Wednesday. Donna Ware, executive director of Historic London Town and Gardens in Edgewater, discusses Tidewater architecture; part of the fall lecture series at Montpelier Mansion. Route 197 and Muirkirk Road, Laurel. Free. 301-953-1376.

Sports and Recreation

DROP-IN WATER AEROBICS -- 7:30-8:30 p.m. Tuesdays and Thursdays. Pool workout for ages 18 and older. Glenarden/Theresa Banks Complex, 8615-A McLain Ave., Glenarden. $6. 301-772-5515.

ANACOSTIA RIVER BOAT TOURS -- Noon Tuesdays, Thursdays and Saturdays. Guided 45-minute pontoon tours to observe birds and other wildlife. Bladensburg Waterfront Park, 4601 Annapolis Rd., Bladensburg. Free. 301-779-0371.

LATINO, AFRICANO, CARIBBEANO DANCE -- 10-11:15 a.m. Saturday, weekly through Oct. 30. Aerobic workout for ages 16 and older. Mount Rainier Nature and Recreation Center, 4701 31st Pl., Mount Rainier. $7; reservations, 301-927-2163.

JOURNEY INTO JUG BAY'S PAST -- 1-3 p.m. Saturday, for ages 8 and older. An exploration of the history and beauty of the Patuxent River and Mount Calvert on a pontoon tour. Patuxent River Park, 16000 Croom Airport Rd., Upper Marlboro. $4; reservations, 301-627-6074.

RIVER ECOLOGY BOAT TOURS -- 2-3 p.m. Sundays, for all ages. A naturalist leads a pontoon trip and teaches about the wetlands, wildlife and history of the area. Patuxent River Park, 16000 Croom Airport Rd., Upper Marlboro. Free; reservations, 301-627-6074.

CHESAPEAKE BAY CRITICAL-AREA DRIVING TOUR -- 10 a.m.-3 p.m. Sundays. Self-guided, four-mile driving tour includes interpretive stops, an observation tower and a timber bridge over scenic wetlands. Patuxent River Park, 16000 Croom Airport Rd., Upper Marlboro. Free. 301-627-6074.

Exhibitions

"THIS FAIR LADY: THE LIFE OF LETTICE LEE" -- Through Sept. 26. Artifacts from the life of Lettice Lee, resident of the historic home from 1748 to 1776. Darnall's Chance House Museum, 14800 Gov. Oden Bowie Dr., Upper Marlboro. $3; seniors, $2; ages 5-18, $1. 301-952-8010.

"DAVID BROSCH, PRINTS" -- Through Sept. 28. The resident printmaker at Montpelier will show his latest work in the Resident Artists' Gallery. Montpelier Cultural Arts Center, 12826 Laurel-Bowie Rd., Laurel. Free. 301-953-1993.

"SUSANNA BRABAENDER, DIVINE INFANTS" -- Through Sept. 30. Raku-fired pottery. Montpelier Cultural Arts Center, 12826 Laurel-Bowie Rd., Laurel. Free. 301-953-1993.

"SONGS OF SUMMER" -- Through Sept. 30. Colored pencil drawings and watercolors by Ingrid Cowan Hass. New Deal Cafe, Roosevelt Center, 113 Centerway Rd., Greenbelt. Free. 301-474-5642.

"DIALOGUE: ART.TECHNOLOGY.IMAGERY" -- Through Oct. 28. Digital photography and multimedia works by various artists. Montpelier Cultural Arts Center, 12826 Laurel-Bowie Rd., Laurel. Free. 301-953-1993.

"GETTING OUT THE VOTE: THE POLITICAL SCENE IN THE 1800s" -- Through Nov. 30. Political memorabilia. Surratt House Museum, 9118 Brandywine Rd., Clinton. $3; seniors, $2; ages 5-18, $1. 301-868-1121.

"HORACE CAPRON AT 200: A FOUNDER'S LIFE" -- Through Dec. 31. Photographs, autobiography excerpts and other artifacts chronicle the life and times of Laurel's founder. The Laurel Museum, 817 Main St., Laurel. Free. 301-725-7975.

"SSS . . . WHEN THE IRON WAS HOT: AFRICAN AMERICAN IRONWORKERS IN LAUREL/MUIRKIRK 1730-1930" -- Through March 31. Historical exhibition celebrates the contribution of black ironworkers in Laurel. Montpelier Mansion, Route 197 and Muirkirk Road, Laurel. $3; seniors, $2; ages 5-18, $1. 301-953-1376.

"PLEASE BE SEATED" -- Ongoing. Nineteenth-century chairs, sofas, stools and benches from the museum's permanent collection. Riversdale House Museum, 4811 Riverdale Rd., Riverdale. $3; seniors, $2; children, $1. 301-864-0420.

"LIVING THE HEALTHY LIFE: SPORTS, HEALTH AND FITNESS IN THE NEW DEAL ERA" -- Ongoing. Exhibition examines the evolution of health and fitness awareness during the 1930s and '40s. Greenbelt Museum, 15 Crescent Rd., Greenbelt. Free. 301-507-6582.

RADIO PREMIUMS -- Ongoing. Memorabilia related to radio serials of the 1930s, '40s and '50s, including "Radio Orphan Annie," "Buck Rogers in the 25th Century" and "Captain Midnight." Radio-Television Museum, 2608 Mitchellville Rd., Bowie. Free. 301-390-1020.

"THE FORGOTTEN WAR REMEMBERED: AMERICA AND THE KOREAN WAR" -- Ongoing. Photographs documenting the war, from growing tension during the late 1940s through signing of the armistice in 1953. National Archives at College Park, 8601 Adelphi Rd. Free. 301-713-6800.

Miscellaneous

ROMAN LEGION XX ENCAMPMENT -- 10 a.m. to 4 p.m. Saturday and Sunday. Interpreters of Roman legionnaires demonstrate armor, battle tactics and camp life. Marietta House Museum, 5626 Bell Station Rd., Glenn Dale. Free. 301-464-5291.

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