570 Prof. Morton on tlie Propagation of Polyphase 



G. Mie * has used the above method in his accurate treat- 

 ment of the two- wire problem. 



Fig. 2. 



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J ■J 





















'(5) 























s^f^CS 





'(4r) 



























< {Of, 



















( 



rfk) 

















1-0 





i^TTV 























(II 





























































































Q>5 















































































































































2 3^567 



Number of wires. 



8 9 10 II 12 



* Mie, Ann. d. Phys. ii. p. 202 (1900). 



