THERMO-ELECTRIC QUALITY UNDER PRESSURE. 



303 



40" 60" 

 Temperature 



lOO' 

 Zinc 



40" 60" 

 Temperature 



o 



Figure 11. Zinc. 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 temperature. 



TABLE IX. 



Zinc. • 



Thermo-electromotive Force, volts X 10^. 



