A CHEMICAL BOND: From left to right, Taiping Zhao of Syracuse University, Gary Weisman of the University of New Hampshire, John Baldwin of Syracuse University and Ned Keliher of Harvard University introduce themselves during the 33^rd Peter A. Leermakers Symposium May 5 at the Exley Science Center. The annual, one-day meeting brings together internationally recognized chemists for a day of intensive examination of a particular subject in chemistry. More than 150 guests attended the symposium on stereochemistry, titled “Chirality.” (Photo by Olivia Bartlett)