THERMO-ELECTRIC QUALITY UNDER PRESSURE. 



311 



40'^ 60° 80° 

 Temperature 



\W W 



AOT 60^ 80° 

 Temperature 



Pure Aluminum 



00° g 



S 

 o 



Figure 15. "Pure" Aluminum. On the left, the heat absorbed by unit 

 quantity of electricity in flowing from uncompressed metal to metal compressed 

 to the pressure indicated on the curves, as a function of temperature. On 

 the right, the excess of Thomson heat in metal compressed to the pressure 

 indicated on the curves over uncompressed metal, as a function of tempera- 

 ture. 



TABLE XIII. 



Aluminum (Pure). 



Thermo-electromotive Force, volts X 10^. 



