BALSAM FIE. 



55 



Table 42. — Volume of trees of different diameters and heights — Bangor and Maine rules. 



BANGOR RULE.i 





Height of tree (feet). 



Diameter 



Diameter breast high (inches). 



40 



50 



60 



70 



80 



90 



inside 



bark of 



top 





Volume (board feet). 



(inehe.s). 



„ 



15 

 23 

 32 

 42 



21 

 29 

 40 

 51 

 63 

 77 



27 

 38 

 49 

 62 

 77 

 94 

 111 

 129 









5.9 



8 



50 

 62 

 76 

 94 

 113 

 135 

 159 

 186 

 215 



64 

 78 

 93 

 110 

 132 

 160 

 191 

 226 

 262 





6.2 



9 . . . 





6.4 



10 



109 

 129 

 154 

 185 

 223 

 268 

 317 



6.6 



11 



6.8 



12 





7.0 



13 





7.1 



14 ... 







7.2 



15 







7.3 



16 









714 













MAINE RULE. 2 



7 



15 

 24 

 34 

 46 



21 

 32 



44 

 57 

 71 

 86 



26 

 40 

 54 

 69 

 85 

 102 

 121 

 140 









5.9 



8 



50 

 65 

 81 

 99 

 120 

 143 

 166 

 191 

 215 



60 

 76 

 94 

 114 

 138 

 167 

 200 

 236 

 271 





6.0 



9 





6.1 



10 



106 

 129 

 157 

 193 

 236 

 283 

 333 



6.2 



11 



6.2 



12 





6.2 



13 





6 3 



14 







6; 3 



15 







6.3 



16 









6.4 













1 Based on taper curves, sealed as 16-foot logs. Stump height assumed, 1 foot. 



2 Based on taper curves, scaled as 8 and 16 foot logs. Stump height assumed, 1 foot. 



RATIO BETWEEN BOARD AND CUBIC MEASURE. 



Table 43 gives the ratio between board measure (Maine rule) and 

 cubic feet. 



Table 43. — Rnfio between board measure (Maine rule) and cubic feet (merchantable 



[Based on 330 trees.] 



Diameter 



Board feet 



Diameter 



Board feet 



breast high 



per cubic 



breasfh!gh 



per cubic 



(inches). 



foot. 



(inches). 



foot. 



7 



3.0 



12 



3.4 



8 



3.2 



13 



3.4 



9 



3.3 



14 



3.5 



10 



3.3 



15 



3.5 



11 



3.4 



16 



3.5 



