Brookhaven National Laboratory's High Flux Beam Reactor will be open to the public on August 24, the last day of the Laboratory's 1997 Summer Sunday Tours. Tour hours are between 10 a.m. and 3 p.m. Visitors may view the experimental floor of the world-renowned research reactor that has been closed since January, after the discovery of a tritium leak from its spent-fuel pool. The tour also includes the popular, one-hour, live "Whiz Bang Science Show" and a guided bus ride around the site. The tours are free and no reservations are required. For more information, call Brookhaven Lab's Public Affairs Office at 344-2345.