Paper, 'The minimum-point of change of potential of a voltaic couple' by George Gore Gore writes: 'In a previous communication on “The Effect of Chlorine on the Electromotive Force of a Voltaic Couple” (‘Roy. Soc. Proc.,’ May 3rd, 1888) [see PP/12/7], I described a phenomenon which I now venture to term the “Minimum-point of Change of Potential of a Voltaic Couple.” In that description a “thermo-electric pile” is mentioned as having been used for the purpose of balancing the electromotive force of the couple, whilst finding the “minimum-point of change.”' Annotations in pencil and ink. Subject: Electricity Received 26 May 1888. Read 14 June 1888. A version of this paper was published in volume 44 of the Proceedings of the Royal Society as 'The minimum-point of change of potential of a voltaic couple'. 1888