Search for Magnetically Charged Particles Produced in $e^+ e^-$ Annihilations at $\sqrt{s}=10$.6-{GeV}

Energetic particles carrying magnetic charge can be identified by their trajectory in a magnetic field. We report here the first application of this property to a search in e/sup +/e/sup -/ annihilations. By tracking the paths of particles in the CLEO magnetic spectrometer at the Cornell Electron Storage Ring we place upper limits on the production of magnetically charged particles with mass m<5 GeV/c/sup 2/.