Paper, 'Effects of different positive metals, etc, upon the changes of potential of voltaic couples' by George Gore Gore writes: 'The following effects upon the minimum change of potential of a voltaic couple in water (‘Roy. Soc. Proc.,’ May 26, 1888) [see PP/12/20], and upon the change of potential attending variation of strength of its exciting liquid (ibid., May 31, 1888) [see PP/12/21], were obtained by varying the kind of positive (and of negative) metal of the couple, and by employing different galvanometers.' Annotations in pencil and ink. Subject: Electricity Received 13 June 1888. Read 21 June 1888. A version of this paper was published in volume 44 of the Proceedings of the Royal Society as 'Effects of different positive metals, &c., upon the changes of potential of voltaic couples'. 1888