168 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



TABLE IX. 



It is evident from the foregoing discussion that if eddy currents are 

 nonexistent in the core of a transformer, a fair approximation to the 

 form which the characteristic curves will have under any given cir- 

 cumstances can be made if one has an accurate statical hysteresis 

 diagram of the core for the range required. That is, one can predict 

 with accuracy the form of the current curves, the growth of excitation 

 and flux of magnetic induction in the core of a good transformer. 



Harvard University, 

 Cambridge, Mass. 



