560 



TABLE OF COMPARATIVE NOTATION. 



TABLE OF COMPARATIVE NOTATION. 



Electric Field 

 Electric Induction 

 Electric Current-density 

 Magnetic Field 

 Magnetic Induction 

 Vector Potential 

 belonging to mag- 

 netic induction 

 Vector Potential of ) 

 magnetization J 

 Polarization 

 Mechanical Force 

 Volume Density 

 Surface Density 

 Electrical Potential 

 Magnetic Potential 

 Electric Inductivity 

 Magnetic Inductivity 

 Susceptibility 

 Conductance 

 Capacity 

 Resistance 

 Total Current 



* Helmholtz's usage is variable, particularly as to the position of 4?r. 



