600 



BRIDGMAN. 



TABLE VIII. 

 Silver. 



0° 20' 



40° 60° 80° 100 

 Temperature 



Pressure, Kg. /Cm.' X 10' 



Silver 



Figure 10. Silver, results for the measured resistance. The deviations 

 from linearity are given as fractions of the resistance at kg. and 0°C. The 

 pressure coefficient is the average coefficient between and 12000 kg. 



The average temperature coefficient between 0° and 100° was 

 0.00407, against 0.00400 found by Jaeger and Diesselhorst ^ for silver 

 99.98% pure. The initial pressure coefficient at 0° found from the 

 deviation curve above was — O.OsSSS, against — O.OsSS by Lisell.^ 

 Lisell's silver was not excessively pure; it contained 0.08% of Cu and 

 traces of carbon. 



The results are somewhat unusual in general character. When 

 the pressure-resistance curves of different temperatures are scaled to 



