Paper, 'On the thermo-electricity of ferruginous metals, and on the thermal effects of stretching solid bodies' by J P [James Prescott] Joule Joule briefly describes a series of experiments made with a thermo-multiplier placed in the vacuum of an air-pump. Subject: Physics / Electricity / Thermodynamics Received 29 January 1857. Read 29 January 1857. Written by Joule in Oak Field, Moss Side, Manchester [England]. This paper was published in full in volume 8 of the Proceedings of the Royal Society as 'On the thermo-electricity of ferruginous metals, and on the thermal effects of stretching solid bodies'. 28 January 1857