IDENTICAL CHANGES 



ity from the normal alternate current, and since 

 it is ever positive and negative, it must be slower 

 than normal in one substance and faster than 

 normal in the other. 



In conducting electricity a copper wire acts 

 different than in conducting heat. 



Heat engages the whole mass of the copper to a 

 far greater degree than electricity does. Yet if the 

 wire is too small to carry the electricity, heat 

 will be generated. So it evidently takes material 

 to convey electricity, and electrical resistance must 

 consist in the mechanical obstruction the particles 

 of a substance may present to an abnormal current, 

 while yet they exist as organizations only because 

 of a normal current. 



Wireless telegraphy does not contradict this 

 reasoning, and the mystery of its transmissions is 

 more capable of solution under a theory of steady 

 displacement than under vibration or occult theo- 

 ries. In thermo electricity there is unequal con- 

 duction ; in the galvanic battery there are ever two 

 bodies that are affected different by the acids. Can 

 these unequal substances tear apart two distinct 

 powers that are locked up in the embrace of each 

 other ? 



In differentiating positive and negative, the 

 bodies must themselves undergo a change. And 

 this change must be prompted by a power that is 

 already existing. And however many transfer- 

 ences and changes there may be traced or imag- 

 ined, at last it must come to the infinite. 

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