598 



BRIDGMAN. 



possibility of such a transition with a very sHght discontinuity of re- 

 sistance is not entirely ruled out by these measurements, although it is 

 exceedingly improbable. 



TABLE VII. 

 Aluminum. 



The smoothed results are collected in Table VII, and the experi- 

 mental values are shown in Figure 9. Within the limits of error the 

 deviations from linearity are symmetrical and parabolic, and are 

 sufficiently characterized by the values of the table. 



0= 20° 40^ 60" 80° 100° 

 Temperature 



Oi380p? 



1.0,37515= 



20° 40'^ 60" 60' 100° 

 Temperature 

 Aluminum 



Figure 9. Aluminum, results for the measured resistance. The deviations 

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

 the deviations are symmetrical, there is no need for giving the detailed devia- 

 tion curves. The pressure coefficient is the average coefficient between 

 0° and 12000 kg. 



