Georgia N. Nigro, Whitehouse Professor of Psychology at Bates College, will lead a roundtable discussion on "Adolescence at the Millennium: Tales From the Field" at 4 p.m. Friday, May 12, in the Keck Classroom, Pettengill Hall, Bates College. The event, which celebrates Nigro's appointment as the Whitehouse Professor of Psychology at Bates, is open to the public free of charge.