TY - JOUR T1 - A Preliminary Account of the Reduction of Observations on Strained Material, Leyden Jars, and Voltameters JF - Proceedings of the Royal Society of London (1854-1905) VL - 30 SP - 411 EP - 435 PY - 1879/01/01/ UR - http://dx.doi.org/10.1098/rspl.1879.0140 M3 - doi:10.1098/rspl.1879.0140 AU - Perry, J. AU - Ayrton, W. ER -