JACK PINE. 43 



Tablk 27. — Volume in board feel of while pine trees of different diameters and heirjlds. 



[Based on mill c-iit of lumlicr from 1,578 trees in southern New Hampshire, 60 per cent bcins round-edged 

 lumber. Measurements by L. Margolin, 1905.] 



Diameter 

 breast 

 high. 



Total height of trees (feet). 



30 



40 



50 



00 



70 



1 

 80 



Incites. 



5 



() 



7 



8 



9 



10 



11 



Board feet. 

 8 

 13 

 18 

 24 

 32 

 •il 



Board feet. 

 12 

 20 

 28 

 36 

 44 

 53 

 63 

 73 

 84 

 95 

 105 



Board feet. 



15 



23 



34 



45 



56 



70 



84 



100 



117 



137 



158 



181 



209 



238 



270 



302 



Board feet. 



Boardfeet. 



Boardfeet. 



27 

 39 

 53 



69 

 85 

 103 

 125 

 148 

 173 

 200 

 230 

 261 

 297 

 335 

 37,^ 



29 



44 



62 



81 



103 



126 



151 



180 



210 



241 



277 



313 



352 



393 



. 436 









93 

 119 

 147 

 177 



210 

 243 

 282 

 323 

 368 

 411 

 460 

 500 



12 





13 





14 





15 1 



16 ' 



17 . . . '' 





18 





19 1 



20 



I 



This table was used in calculating miU-tally yields in Tal)le 10. It is given for comparison with Taljlc 25 

 showing board-feet contents of jack pine trees" of different diameters and heights scaled by Scribner Decimal 

 C log rule. 



T.VBLE 28. — Number of ties per tree in jack pine trees of different diameters in western 



Ontario. 



From an article by L. M. Ellis in the Forestry Quarterly, March, 1911. Basis 100 trees. Equivalent io 

 board feet added by the author. 



Diameter 



Total 



Age 

 (average). 



No.l, 



No. 2, 



Cull, 





Equiva- 

 lent in 



board 



feet. 



breast 

 high. 



height 

 (average). 



7" X 7" 



x8' 



6"x6" 

 x8' 



5"x5" 

 x8' 



Total. 



Inches. 



Feet. 



year*. 













10 

 11 



56 

 61 



48 

 55 





0.8 

 2.0 



1.1 

 1.0 



1.9 

 •^ 3.3 



37 

 71 



0.3 



12 



66 



62 



1.2 



1.8 



.8 



3.S 



94 



13 



70 



70 



2.2 



1.5 



.8 



4.5 



119 



14 



71 



SO 



3.2 



1.5 



.4 



5.1 



115 



15 



77 



91 



3.8 



1.3 



.3 



5.4 



158 



10 



81 



107 



4.0 



1.2 



.2 



5. 1 



100 

 1 



