METHODS OF COMMUNICATION FOR FOREST PROTECTION 



APPENDIX G USEFUL TABLES. 



Page 



1 Weight of Cedar Poles of Various Lengths and Top Diameters 221 



2 Number of Poles of Different Sizes Required to Make up a Carload Lot. . 221 



3 Comparison of Wire Gauges 222 



4 Tensile Strength of Bare Copper Wire 223 



5 Properties of Hard-dra'wn Copper Telephone and Telegraph Wire 223 



6 Properties of Bimetallic Wire 224 



7 Properties of Galvanized Telephone and Telegraph Wire 224 



8 Properties of Galvanized Steel Wire 225 



9 Properties, of Rubber-covered, Lead-incased Copper Cables 225 



10 Properties of Standard Wire for Telephone Construction on Dominion Forest 



Reserves 226 



Index 227 



