The Discharge of Electricity Through Gases

absorption aluminium atoms battery bell-jar bulb cathode rays charge carried charge of electricity charge of negative chemical action chlorine coil conductivity conductor connected corpuscles curves deflection diminished discharge passes discharge tube disk elec electrifica electrification produced electrified particles electro-motive force electrode electrolyte Elster and Geitel ether theory experiments exposed to Röntgen flame galvanometer gases glass wool glowing Goldstein heat Hertz hydrogen increase inner cylinder inside insulated J. J. Thomson Lenard rays low pressure magnetic field magnetic force mercury metal molecules nega negative charge negative electricity negatively electrified neighbourhood Ohm's law oxygen path phosphorescence photo-electric effects placed plate platinum positive charge positive electrification potential difference radiation rate of leak result right angles Röntgen rays saturation current shown in Fig slit sodium solution steam Stoletow substance surface tension temperature thick thin tion tive tricity ultra-violet light vanes vapour velocity vessel Wied wire