CONSTRUCTION POLICY IN FOREST RESERVES 39 



Material and Uses Con. Description of Equipment Con. 



Telephone Instruments Con. 



For ranger and patrol stations unoccupied 

 during winter months, open lookout towers 

 and any outdoor stations along patrol 



routes or elsewhere Weather-proof iron box telephone; type, North- 

 ern Electric No. 1336-J or equal with 

 2,500-ohm unbiased ringer and condenser. 



For speeder patrolmen, special crews, or fire- 

 camps on lines not equipped for buzzer 



signalling Special Forest Service portable telephone; 



Northern Electric No. 1375-A. 



For patrolmen, special crews, " smoke chasers" 

 and all field service units on lines 



equipped for buzzer signalling Special Adams portable telephone; Northern 



Electric No. 1004-A. 



Emergency Telephone Kits : 



For temporary camps on fires or special pro- 

 jects Special Forestry Branch emergency communi- 

 cation kit No. 1-A. 



Protective Devices : 



Lightning-arrester, for lightning only Protector; type, Northern Electric No. 60-E or 



equal. Order separately protector blocks, 

 Northern Electric Nos. 20 and 21 or equal, 

 and No. 10 protector block mica. 



Lightning-arrester, for lightning and high- 

 tension currents Protector; type, Northern Electric No. 5S-F or 



equal. Same as above with addition of 

 2-ampere to 7-ampere No. 11-C tubular 

 fuses. 



Fuses, for outdoor installation Type, Northern Electric No. 4 7- A or equal. 



Protector blocks and micas for repairs . . . . Protector blocks ; type, Northern Electric Nos. 



20 and 21 or equal. Protector micas ; 



type, Northern Electric No. 10 or equal. 



*Svvitch and protector mounting-box, for all 



permanent outdoor telephones Type, Northern Electric No. D-400 or equal. 



Protector mats, to be placed under No. 58-F 



protector Type, Northern Electric No. 48 or equal. 



Lightning rods, for carrying lightning to 



ground, on pole lines only No. 9 B.W.O., galvanized-iron wire, 2-in. 



galvanized-iron fence-staples. 



Dry Batteries : 



For station telephones, desk and wall sets ... Type, Northern Electric "3 in 1" battery Blue 



Label, or equal. 



For weather-proof lookout telephones Type. Northern Electric telephone battery or 



equal. 



For Forest Service portable telephone No. 



1375-A Columbia O.V. No. 3 or Ever Ready Tungsten 



No. 703. 



For Adams portable Telephone No. 1004-A.. Ever Ready Tungsten No. 705. 



Special Signalling Devices : 

 Extension bells 



For stations indoors Type, Northern Electric No. 127-F or equal, with 



2.500-ohm unbiased ringer. 



