

 -w 



lookout points, 



Discussion. 



3:30 ~ Tolophono Linos - How to Koop Bnwn tho Costs of 

 Construction and Maintenance"^- Standard Costs* 



lolophono systems aro valuable to tho Porost Serv- 

 ice only whon no o clod . Thoroforo reliability and. efficiency 

 aro of first importance* 



o must look woll to tho futuro neocls of the For- 

 ost Sorrioo for B ooirrploto tolophone syston on oach Nation- 

 al Porost, That moans a working plan for oach tolophone 

 system. 0?hoso plans should include ~ 



Dosoriptivo diagrams, 



Essential details of first-class construction. 



They should indicate practical rights of way; 

 kinds of linoa; kind and sizo of wiro ; methods of construc- 

 tion; switching coirtors and equipment ; use of private linos, 

 and many othor things-. 



Only experienced men should havo charge of tele- 

 phone v;ork% 



mistakes^ Iho installation of tolo- 



phono systems without using, a practical working plan will 



causo orponsve 



Caroful maintenance of tho lines and apparatus 

 is as important as 'proper conslmictlon; consequently it 



* 



90 



