Electricity ...

apparatus arrangement attached attracted body boiler brass ball brass rod carbon Cavallo charcoal charged chemical action chemical decomposition chloride circuit coating coils conducting conductor connected cylinder decomposed decomposition diameter disc discharge distance dry pile effect elec electric current electrical machine electrified electro-magnet electro-motive forces electrometer electroscope elements evolved excited experiment Faraday fluid friction galvanic galvanometer glass plate glass rod gold leaves hydrogen inch induction inductor inside instrument insulated intensity latter leaf length Leyden battery Leyden jar moistened needle negative nitric acid obtained opposite oxidized oxygen paper particles pass piece pile pith-balls placed platina wire platinum points polarity pole Polytechnic positive electricity prime conductor quantity of electricity repel resistance rheometer rheostat rubbed screw sealing-wax shellac shown side silk silver spark steam substance sulphuric acid supported surface suspended tinfoil torpedoes touching tricity tube vessel voltaic voltaic pile whilst wire zinc