THERMO-ELECTRICITY 



II 1 K ,\I i 



I'K \. Mi \I I \ ID 



tidying Electricity, one of the first thoughts to occur 

 is concerning its nature What is it ? So simple, so 

 easily c.\ ^o subtle as to evade our keenest 



analysis, of what docs it con 



A have attempted to answer the question. Few have 

 ventured to formulate any theory they merely point to its 

 vari<> 



There is a wide divergence between the ideas which, at 

 different periods, have obtained concerning this mighty 

 force. The wondering, ;uck ancients, spoke of 



11 Jove's thunderbolts hurled from Olympus ;" then, genera- 

 tions which followed, of " the attractive property amber 

 acquires when rubbed ;" and now, the more scientific 

 modi B had the later conception of " the two electric 



lit, by common consent, no satisfactory dcfit 

 has yet been established. 



Turning - facts over in my mind during the years 



1884 and 1885, at the end of 1885 I wrote this as a theory 

 " /: is a modi of motion produced by friction of 



molecules against each other, and conveyed away by tht 



