Philosophical Magazine

action amount apparatus appears applied approximately becomes calculated cause centre charge circuit conductivity connected consider consists constant contains corresponding curves cylinder density determined direction discharge distance disturbance effect electric electrodes energy equal equation experiments expression fact force gases gauge give given glass groups heat hydrogen inch increase influence insulated lead length less light limit lines liquid magnetic means measured metal method molecules motion necessary observations obtained occur opposite pass period Phil placed plane plates polarization position potential present pressure probably produced proportional radiation rays relation remains represent resistance resolving respectively shown shows side similar simply solution space spectrum subgroups substances substitution supposed surface taken temperature theorem theory tube varying vibrations volume waves whole wire