112 



Trans. Acad. Sci. of St. Louis. 



then (3) will become 



E = 



am 



1 + bl 



The important point to determine now is whether or not 

 our assumptions in regard to the constants <x, G and a l are 

 realized in actual practice. 



Equation (4) can be arranged as follows 

 (5) 



E E6 



—^-4 = a 



ni n 



Let — = x and - = y then 

 m n 



x + yb = a 

 is recognized as the equation of a straight line. 



40 



80 



Fig. 3 



120 



Series Dynamo Constants Determined when the Speed does not Change. 



