158 METHODS OF COMMUNICATION FOR FOREST PROTECTION 



Don't use tight ties on the occasional poles used in tree lines to cross meadows 

 or other openings. Consider them as trees. 



Don't pull a tree line tight. Leave at least 4 ft. of slack, more where possible. 

 Don't use Buffalo grips on tree lines. Pull all slack by hand. 



Section 95 Installation 



Don't have any more inside wiring than is unavoidable. Determine the best 

 permanent location for the telephone and bring the wires through the wall as near 

 this point as possible. 



Don't install telephones or extension bells of different resistance ringer coils on 

 the same line. All coils must fce alike. 



Don't put the standard indoor telephone set in a damp place nor where it may 

 be exposed to the weather. The metal-covered set has been adopted for such places. 



Don't under any circumstances connect up an instrument without a protector. 

 The first lightning storm may ruin it. 



Don't fail to fasten the tension cords on both ends of the receiver cord 1 when 

 attaching the latter to receiver and interior binding-posts. This prevents strain 

 on receiver-cord conductors and saves breakage. 



Don't attach any of the equipment with nails. Use only wood screws of the 

 proper size and type. 



Don't expect a slipshod job of wiring to work satisfactorily. A good workman 

 takes pride in the appearance of his work as well as in its working qualities. A 

 poor-looking installation is practically always a poor-working one also. 



Don't put two wires under one staple. Use insulated staples only and 1 fasten 

 each wire separately. 



Don't run wires near metal pipes or drains. 



Don't leave exposed joints in the wiring. SoldeV and tape properly. 



Don't run unprotected wires through the chinking or between the logs of a log- 

 house. Bore holes through a log and put in porcelain tubes. 



Don't hink you can make a good ground on any old iron rod or piece of wire or 

 junk that may come handy. Any iron not galvanized will rust and this rust is 

 practically a non-conductor. Use only galvanized iron, or copper, with as large a 

 surface as possible, making a moist contact with the earth. 



Don't expect to get a good ground except in permanently moist earth. This 

 means earth, not rock, and it means earth that neither dries out nor freezes. 



Section 96 Operation 



Don't try to ring with the receiver off the hook. 



Don't ring in on a line until you have both " listened in " and also inquired 

 if the line is busy. The line may be in use even though no one is talking when 

 you " listen in ". 



Don't think because the station called fails to answer on the first ring that the 

 line is broken or nobody at home. Have some nearer station try to raise the person 

 wanted. Learn the habits of your man. He may be out after his horse or getting 

 in a supply of water for the day. Be persistent. 



Don't forget to ring off after talking. There may be others waiting for you to 

 finish your conversation. 



Don't be too ready to blame operating trouble on the instruments. Nine times 

 out of ten trouble is due to the condition of the line, the ground, or the installation. 

 Also nine times out of ten, if the instrument does get out of order, the fault lies 

 with the person using it and is due to carelessness or ignorance. 



Don't experiment with the interior mechanism of the instruments. Learn all 

 about the telephone and you won't have to experiment. 



