590 



BRIDGMAN. 



numerical deviation is 0.13%. The curves of deviation from linearity 

 are not symmetrical about the mean pressure; these curves also are 

 given in Figure 5. 



There are no previous measurements of the pressure coefficient. 



TABLE III. 

 Thallium. 



O.IUqo 20' 



Temperature 



Pressure, Kg./Cm.' X 10' 



Figure 5. Thallium, results for the measured resistance. The deviations 

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

 pressure coefficient is the average coefficient between and 12000 kg. 



