THE MIX

Today Put 'em up! A night of boxing begins at 7:30 p.m., when grown menput the smack down at the Ramada O'Hare Hotel in Rosemont. HitzEnterprises (yes, Bobby Hitz of Nana's Restaurant) says boxing isbetter live and for $25 to $50, you can find out for yourself. Thehotel is at 6600 N. Mannheim. Call (630) 529-0122.SaturdayUp, up and away: A mural honoring Bessie Coleman, the world's firstblack pilot, and other African-American aviators and astronauts getsa 2 p.m. unveiling at the Bessie Coleman Branch Library. The muralis by Chicago-based painter Aaron Truesdale. After the dedication,Truesdale and another artist, Tim Branson, will give a talk.Admission is free. The library is at …