Age: 61

Committee Memberships: Compensation, SH&E

Director since: 1997

Term of Office Expires: 2012

Business Experience:

Dr. Wrighton has served as Chancellor of Washington University in St. Louis since 1995. Prior to 1995, Dr. Wrighton was a faculty member at the Massachusetts Institute of Technology for 23 years where he served as head of the chemistry department from 1987 to 1990, and as Provost from 1990 to 1995. Dr. Wrighton is a member of the Board of Directors of Brooks Automation, Inc., a worldwide provider of automation, vacuum and instrumentation solutions to the global semiconductor and related industries, and Corning, Inc., a specialty glass and ceramics company, and previously served as a member of the Board of Directors of A.G. Edwards, Inc., a financial services company.