TY - JOUR T1 - On the Potential Difference Required to Produce a Spark between Two Parallel Plates in Air at Different Pressures JF - Proceedings of the Royal Society of London (1854-1905) VL - 52 SP - 99 EP - 114 PY - 1892/01/01/ UR - http://dx.doi.org/10.1098/rspl.1892.0056 M3 - doi:10.1098/rspl.1892.0056 AU - Peace, J. ER -