Paper, 'The influence of heat on the galvanic elements' by William Henry Preece Preece writes: 'It is well known that heat influences the conditions of galvanic elements so as to vary the strength of the currents generated by them in those parts of the circuits connecting their poles. In 1840 De la Rive found that the action of a galvanic pair was accelerated when it was put into hot fluid instead of cold fluid, and he attributed the result to increased chemical affinity.' He shares the results of his own investigations into the influence of heat on the galvanic elements. Annotations in pencil and ink. Subject: Electricity Received 8 February 1883. Read 22 February 1883. A version of this paper was published in volume 35 of the Proceedings of the Royal Society as 'The effects of temperature on the electromotive force and resistance of batteries'. [1883]