=Electricity, Atmospheric.= The electric currents of the atmosphere, variable but never absent. They include lightning, frictional electricity, the Aurora Borealis, the electric waves used in wireless telegraphy, etc. Benjamin Franklin indicated the method of drawing electricity from the clouds. In June, 1752, he flew a kite, and by its moistened cord drew an electric current from the clouds so that sparks were visible on a brass key at the ground end of the cord. Later, when a fine wire was substituted for the cord, and a kite was flown in a thunder-storm, the electric spark was vivid. This experiment confirmed his hypothesis that lightning was identical with the disruptive discharges of electricity. =Electricity, Latent.= The bound charge of static electricity. =Electricity, Negative.= (_See_ Negative Electricity.) =Electricity, Positive.= (_See_ Positive Electricity.) =Electricity, Voltaic.= Electricity of low potential difference and large current intensity. Electricity produced by a voltaic battery or dynamo as opposed to static electricity, which is frictional and practically uncontrollable for commercial purposes. =Electrification.= The process of imparting an electric charge to a surface. The term is applied chiefly to electro-static phenomena. =Electrization.= In electro-therapeutics, the subjection of the human system to electric treatment. An electric tonic imparted by electro-medical baths through the nervous system. =Electro-chemistry.= That branch of science which treats of the relations between electric and chemical forces in their different reactions and compounds. It deals with electro-plating, electro-fusing, electrolysis, etc. =Electro-culture.= The application of electricity to the cultivation of plants. The use of electricity has been found very beneficial in some forms of plant growth. =Electrocution.= Capital punishment inflicted by electric current from a dynamo of high electro-motive force. The current used is from 1500 to 2000 volts, and it acts to break down the tissues of the body. =Electrode.= The terminals of an open electric circuit. The terminals between which an electric arc is formed, as in the arc-light. The terminals of the conductors of an electric circuit immersed in an electrolytic solution, such as the carbon and zinc of a battery. =Electrolier.= A fixture for supporting electric lamps, similar to a chandelier for gas or candles. Combination electroliers conduct both gas and electricity. =Electrolysis.= The separation of a chemical compound into its constituted parts by the action of an electric current. =Electrolyte.= A body susceptible of decomposition by the electric current. It must be a fluid body and a conductor capable of diffusion as well as composite in its make-up. An elemental body such as pure water cannot be an electrolyte. =Electrolytic Decomposition.= (_See_ Decomposition, Electrolytic.) =Electrolytic Deposit.= (_See_ Deposit, Electrolytic.)