LOGGING IN" THE DOUGLAS FIE REGION. 

 Table 13. — Special plow steel Jioisting rope. 



[6 strands, 19 wires to the strand, 1 hemp core.] 



89 



Net price 



Diameter 



Approxi- 

 mate 

 weight 

 per foot in 

 pounds. 



Approxi- 

 mate 

 strength 



Proper 

 working 

 load in 



per foot. 



in inches. 



in tons of 



2,000 



pounds. 



tons of 



2,000 



pounds. 



SO. 065 



1 



0.10 



3.15 



0.63 



.065 



A 



.15 



4.50 



.9 



.0725 



f 



.22 



6.75 



1.35 



.0775 



A 



.30 



9.4 



1.9 



.085 



i 



.39 



12.1 



2.4 



.095 



■h 



.50 



14.5 



2.9 



.1125 



f 



.62 



19 



3.8 



.155 



a 



.89 



26.3 



5.3 



.195 



i 



1.20 



35 



/ 



.25 





1.58 



45 



9 



.31 



^ 



2 



56 



11 



.375 





2.45 



69 



14 



.45 



If 



3 



84 



17 



.55 



1* 



3.55 



98 



20 



.65 



If 



4.15 



110 



22 



.80 



If 



4.85 



133 



27 



.875 



ii 



5.55 



150 



30 



.925 



2 



6.30 



166 



33 



Note. — The net prices given are based on a discount of 50 per cent off the list prices. Add 10 per cent 

 to the list prices for wire center. 



Table 14. — Extra pliable ploio steel hoisting rope. 



[8 strands, 19 wires to the strand, 1 hemp core.] 



Net price 



Diameter 



Approxi- 

 mate 



weight 

 per foot in 



pounds. 



Approxi- 

 mate 

 strencth 



Proper 

 worMng 

 load in 



per foot. 



in inches. 



in tons of 



2,000 



pounds. 



tons of 



2,000 



pounds. 



$0.06625 



\ 



0.09 



2.25 



0.45 



.0675 



^ 



.13 



3.35 



.67 



.07 





.20 



5.12 



L02 



.075 





.27 



6.90 



1.38 



.08 



i 



.35 



8.70 



1.74 



.09 



T% 



.45 



11.60 



2.32 



.105 





.56 



14 



2.8 



.145 



a 



.80 



20 



4 



.19 



i 



1.08 



26 



5.2 



.24 



1 



1.42 



33 



6.6 



.30 



li 



1.80 



43 



8.6 



.36 



li 



2.20 



52 



10.4 



.435 



t 



2.70 



64 



12.8 



.515 



3.19 



74 



14.8 



Note. — The net prices given are based on a discount of 50 per cent off the list prices. 



Table 15 indicates the fixed investment in ground yarding lines. 

 To take care of different conditions, the total cost and weight is 

 given for 24 cases, which include lines of different lengths, diameters, 

 and grades. 



i 



