Philosophical Magazine

absorption angle apparatus appears applied approximation assumed atom Author becomes bulb calculated circuit coefficient consider considerable constant containing corresponding critical crystal curve depends determined direction discharge distance effect electric electrons element energy equal equation experimental experiments expression fact field force function further gases given gives heat hydrogen increase integral ionization lead length less light limit lines liquid magnetic means measured mercury metal method molecular molecules observed obtained oscillations passing Phil plane plate position possible potential present pressure probably produced quantity radiation radius rays relation resistance respectively seen separation shown simple solution spark specific surface surface tension Table taken temperature theory tube velocity vibration wire zero