The theory of the "dead-stop" titrations developed in the first paper of this series has been verified in the case of the titration of eerie sulfate with ferrous iron.The experimental titration curves at varied conditions are shown in Fig.2 and 3, together with those calculated theoretically.The chief theoretical conclusions have been confirmed, but there are several minor points of discrepancy between the experimental and theoretical curves.The reasons for these discrepancies have been discussed in detail.