TY - JOUR T1 - On the Sensitive State of Vacuum Discharges. Part II JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 171 SP - 561 EP - 652 PY - 1880/01/01/ UR - http://dx.doi.org/10.1098/rstl.1880.0016 M3 - doi:10.1098/rstl.1880.0016 AU - Spottiswoode, W. AU - Moulton, J. ER -