154 THE woodsman's handbook, 



WESTERN TREES.a 

 Table 41.— Douglas Fir. 



Volume in board feet by the Scrihner Rulefi Idaho and Wyoming. 







HEIGHT OF TREE 



(FEET). 



Diame- 

 ter of top 

 inside 

 bark 





Diameter 

 breast- 

 high. 



60 



70 



80 90 



100 



110 



Basis. 







VOLUME (BOARD FEET) 









Inches. 















Inches. 



Trees. 



8 

 9 



20 

 30 



30 

 40 











6.2 

 fi.3 



1 



60 .. 









10 



40 



60 



70 .. 









6.5 



4 



11 



60 



70 



90 



110 







6.6 



23 



12 



70 



90 



110 



130 







6.7 



53 



13 



90 



110 



130 



160 



190 





6.8 



57 



14 



100 



130 



150 



180 



220 





6.9 



51 



15 



120 



150 



170 



210 



250 





7.0 



55 



16 



140 



170 



200 



240 



290 





7.2 



59 



17 



150 



190 



230 



270 



320 





7.3 



51 



18 



170 



220 



250 



300 



360 



400 



7.4 



64 



19 



190 



240 



280 



330 



400 



450 



7.5 



57 



20 



210 



270 



320 



370 



440 



500 



7.6 



55 



21 



230 



300 



350 



410 



480 



550 



7.8 



57 



22 



250 



330 



380 



450 



530 



600 



7.9 



50 



23 





360 



420 



490 



580 



650 



8.0 



45 



24 





390 



450 



540 



630 



710 



8.2 



40 



25 





420 



490 



580 



690 



770 



8.3 



38 



26 





450 



530 



630 



750 



830 



8.5 



31 



27 





480 



680 



680 



810 



900 



8.6 



22 



28 





520 



620 



730 



870 



970 



8.8 



12 



29 







670 



790 



940 



1,040 



8.9 



9 







o Measurements by P. G. Redington on the Shoshone National Forest, Wyoming, 

 1905, and J. G. Peters on the Targhee (formerly Henrys Lake) National Forest, 

 Idaho, 1906. 



ft Like western yellow pine, the Rocky Mountain form of Douglas fir showa 

 larger volumes for the same diameter and height than the coast form. 



