154 ELECTRICAL MEASUREMENTS 



6. "The Measurement of the Inductances of Resistance Coils," Frederick 

 W. GROVER and Harvey L. CURTIS, Bulletin Bureau of Standards, vol. S, 

 1912-13, p. 455. 



7. "Resistance Coils for Alternating-current Work," FREDERICK W. 

 GROVER and HARVEY L. CURTIS, Bulletin of the Bureau of Standards, 

 vol. 8, 1912, p. 495 (see also p. 455 as above). 



8. "The Water Rheostat as an Artificial Load for Electric Installations," 

 E. A. EKERN, Stone & Webster Public Service Journal, vol. 9, 1911, p. 312. 



