378 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



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Figure 3 . Stationary vector- 

 diagrams of angular velocity, 

 admittance, r. m. s., current 

 strength, maximum cyclicpower, 

 and maximum cyclic energy in a 

 simple resistanceless oscillating- 

 current circuit to phase of p. d. 

 as standard. 



Figure 4. Stationary vector- 

 diagrams of impedance, r. m. s., 

 potential difference, maximum 

 cyclic power, "and maximum cy- 

 clic energy in a simple resist- 

 anceless oscillatory -current 

 circuit to phase of current as 

 standard. 



