California Institute of Technology Professor Emeritus Dr. John D. Roberts spoke on the Oregon State University campus on Thursday, May 4, 2006. His lecture, titled "Useful Knowledge about Magnetic Resonance Imaging," was presented at the LaSells Stewart Center. Roberts is the fourth recipient of the Linus Pauling Legacy Award, granted once every two years for outstanding achievement in an area of study once of interest to Dr. Linus Pauling. The Pauling Legacy Award is sponsored by Oregon State University Libraries.