454 



ENGINEERING ON THE FARM 



adapting the metallic line to 

 the ground-circuit switch- 

 board. This apparatus 

 would be restricted to the 

 line in question, and no 

 extensive changes in the 

 switchboard would be 

 necessary. 



The terms offered by the 

 telephone companies for ex- 

 change service for privately 

 owned lines vary consider- 

 ably. In general, it may 

 be said that the operating 

 companies can arrange to 

 supply whatever is neces- 

 sary in the way of service 

 (toll and local), supplies, inspections, and repairs. 



After Western Electric Co. 



Fig. 346. Magneto telephone complete 



After Western Electric Co. 



Fig. 347. Same as Fig. 346, open 



