CONSTITUENTS OF THE UNIVERSE. 



Electricity. 



[HIS manifestation, or mode of motion for 

 it is nothing more nor less has proved 

 to be one of the most puzzling problems 

 in the whole range of science. It has been re- 

 garded as a kind of imponderable matter, and 

 as nothing but very FINE MATTER produced by 

 friction. It is at present treated by some as 

 force, energy, or pressure, and by most people 

 as a profound mystery. There is nothing mys- 

 terious about any truth, as we can readily per- 

 ceive when that truth is recognized; while all 

 mystery is confined strictly to the unknown. 



One reason why this motion is so little un- 

 derstood is because it is one of the invisible 

 movements. If it could be seen, as we see a 

 current or stream of water, or a gas having 

 color, most of the mystery would vanish. There 

 is no force, energy, or pressure involved, aside 

 from, or in addition to the simple movement 

 itself. It has volume, or quantity, is measur- 

 able like other motions, and can be changed or 

 converted into other motions. 



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