1. By using the rapid method for the development of polarization curves, those difficulties in the determination of the equilibrium potential of antimony which arise from oxidation of the electrode surface can be avoided and a more accurate evaluation of the overvoltage for the deposition of the metal becomes possible. 2. Determinations of the overvoltage for the electrolytic deposition of antimony have shown that this quantity is considerably greater for deposition from tartrate solutions than it is for deposition from chloride solutions.