The 42nd Annual Smith Lecture features Dr. Anthony J. Leggett, the John D. and Catherine T. MacArthur Professor and Center for Advanced Study Professor of Physics. He has been a faculty member at Illinois since 1983. He is widely recognized as a world leader in the theory of low-temperature physics, and his pioneering work on superfluidity was recognized by the 2003 Nobel Prize in Physics. The public is invited to hear Professor Leggett on April 22, 2004, at 8:00 p.m. in 131 Hitchcock Hall.