STANDARDS OF RESISTANCE, 1865-1932 



431 



much larger. This was found to be a relatively poor coil as early as 1903. 

 and it was not measured in the interval 1903-31 , but it is interesting to note 



I9J0 1932 



that at the present time the value is quite stable from day to day, and that 

 the average rate of change of resistance is smaller than that of many modern 

 coils. 



L. H. 



