The XYZs of Charmonium at BES
  This contribution reviews some recent developments in charmonium spectroscopy, and discusses related theoretical predictions. The spectrum of states, strong decays of states above open charm threshold, electromagnetic transitions, and issues related to the recent discoveries of the "XYZ" states are discussed. Contributions that BES can make to our understanding of charmonium and related states are stressed in particular. 
T.Barnes (1 and 2) ((1) Physics Division, Oak Ridge National   Laboratory, (2) Dept. of Physics and Astronomy, Univ. of Tenn...