This work will continue experiments to measure the electric dipole moment of the cesium atom, and from that the electric dipole moment (edm) of the electron, as a test of time- reversal symmetry. These experiments, relying on a newly- developed dual magnetometer, should improve the precision of the existing edm measurement in cesium by two orders of magnitude. This would give a resulting sensitivity to an electron edm of 10-28e-cm. If this is achieved, this new measurement would constitute the most stringent limit on an electron edm and would significantly constrain particle physics beyond the standard model.