CONTENTS X i 



Illustrations 



Fig. . Page 



1 Lookout station on a Dominion forest reserve in British Columbia 5 



2 Steel lookout tower on a Dominion forest reserve in Saskatchewan 6 



3 External telephone system on a forest reserve 24 



4 Internal telephone system on a forest reserve 25 



5 Mobley wire-CTadle as used with two coils 43 



6 Mobley wire-cradle as us-ed with one coil 43 



7 Mobley wire-cradle . . 44 



8 Klondike pack-.frame as used for packing wire 4o 



9 Pole-steps 51 



10 Location of brackets on pole 51 



11 Definition of rake 53 



12 Definition of pull 53 



13 Setting a pole. 54 



14 Method of bracing 55 



15 Method of guying , 56 



16 Kc-ck guy bolt 57 



17 Method of using guy stub 58 



18 Method of ground bracing 58 



19 Tripod line .supports 59 



20 Home-made reel 61 



21 Transposition of wires, metallic circuit 62 



22 Method oi making regular tie for iron wire 64 



23 Method of making " figure 8 " tie for iron wire. 64 



24 Method of dead-ending iron wire 65 



25 Method of dead-ending hard-drawn copper wire 65 



26 Method of making regular tie for hard-drawn copper wire 66 



27 Method of making " figure 8 " tie for hard-drawn copper wire 67 



28 Method of splicing iron wire (Western Union joint) 67 



29 Method of splicing 'hard-drawn copper wire 67 



30 Zigzag system of alignment. 69 



31 Reverse curve system of alignment 69 



32 Split tree insulator attachment and cmsstie ". . . . 71 



33 Method of dead-ending on tree lines . . . . 72 



34 Method of tying up emergency wire 75 



35 Method of making temporary splice in emergency wire 77 



36 Emergency wire reel, open and folded 77 



37 Method of crossing transmission lines 79 



38 Method of connecting branch line to main line when both are galvanised- 



iron wire 82 



39 Method of connecting branch line to main line 'when both are hard-drawn 



copper wire 83 



40 Method of connecting branch line to main line in tree construction. ... 84 



41 Wiring diagram of standard wall set 86 



42 Standard telephone installation 87 



43 Method of connecting dry cells for a telephone. 87 



44 Method of installing line fuse when required 88 



45 Wiring diagram for telephone station 90 



