44 New Theories of the Great Forces. 



in action, by day as well as by night. 9 May 

 not this auroral display then be regarded in 

 a measure as confirmatory of what the law 

 of conservation had already suggested to us ; 

 the existence of a retro-current ? 



Well understood Processes in Confirmation. 



The suggestion of a simple, adequate, and 

 perfect theory is given us by an ordinary 

 electro-magnetic battery. Let the conducting 

 wire from such a battery extend half around 

 the circumference of this globe. It is appar- 

 ently as quiet and dormant as is our earth ; 

 yet in. those cold plates, solutions, and wire, 

 there lie the hidden elements of heat, light, 

 and power. At the distant extremity of the 

 wire, when not connected with the earth, we 

 may have none of the manifestations of heat, 

 light, or attraction even though the plates 

 are put into the solution. But let us now 

 make the connection between the extremity 

 of the wire and the earth, then the circuit is 

 complete, and heat, light, and attraction are 

 disclosed in highest degree. 



Now from the Great Sun Battery in 

 which we locate the one Great Universal 



9 Appendix, p. 101. 10 Appendix, p. 102. 



