Terrestrial Electricity, Volume 1

accordingly atmospheric potential gradient atoms barometric pressure bound charge charged body charged conductor comet conductor connected continuous curve curve shows dashed curve decrease deflection direction diurnal diurnal variation earth potential elec electric charge electric elasticity electric field electric fluid electrified electrified body electrometer electromotive force electronegative electrons electropositive electrostatic electrostatic induction ether elasticity explain Faraday Figure gravitation greater Hemisphere hollow conductor intensity ionization ions Kennelly-Heaviside layer known latitudes lines of force lunar magnetic declination magnetic disturbances magnetic field magnetic force magnetic needle magnetic storms magnitude mean daily range mean daily variation medium metal N-S earth-current negative charge Observatory observed opposite Palo Alto particles phenomena physical planet plate positively charged potential gradient quadrants radiation pressure region repulsion rotation seems shown side solar activity solar variation specific inductive capacity sphere stations strain sun-spot sun's zenith distance theory tion Tortosa tube uncharged wave wire