JACK PINE, 



41 



!'able 2^.~Toiul volume of stcniwnodin cubic, fmt of jack pine trees of different diameters 



and heights in Minnesota. 



[ Based on taper curves.] 



Diam- 

 eter 



breast 

 high. 



Total height of trees (feet). 



Bark. 



Ba.sis. 



20 



30 



40 



50 



00 



70 



80 





Total vo 



lumc, including bark (cubic feet). 





Inchra. 

 2.... 

 3.... 

 4.... 



5.... 







7.... 



s 



9 



0.3 

 .6 

 1.1 

 1.7 

 2.5 

 3.4 

 4.4 



0.4 

 .8 



i.l 



3.1 



4.2 

 5.4 

 0.9 

 8.3 



0.5 



1.0 



1.8 



2.7 



3.9 



5.2 



G.7 



8.5 



10.3 



12.4 



14.5 



10. 



19.2 











Per 

 cent. 

 22.8 

 21.3 

 20.0 

 19.0 

 18.1 

 17.4 

 10. 9 

 16.4 

 10.0 

 . 15.6 

 15.2 

 14.7 

 14.2 

 13.6 

 13.0 

 12.3 

 11.5 

 10.7 

 9.8 



Trees. 



15 



28 



00 



73 



93 



95 



72 



62 



64 



36 



27 



10 



8 



2 



4 



3 



1.3 

 2.3 

 3.5 



5.0 

 C.8 

 8.7 

 10.8 

 13.4 

 15.8 

 18.5 

 22.0 

 25.0 

 28.0 

 31.0 

 35.0 

 38.0 





















0.1 

 8.3 

 10.7 

 13.3 

 16.0 

 19.4 

 23.0 

 26.0 

 30.0 

 34.0 

 38.0 

 43.0 

 47.0 

 52.0 

 56.0 



7.1 

 9.7 

 12.5 

 15. 8 

 19.1 

 23.0 

 27.0 

 31.0 

 36.0 

 40.0 

 40.0 

 51.0 

 56.0 

 62.0 

 67.0 



"ii'.h" 



18.7 

 23.0 

 27.0 

 32.0 

 38.0 

 43.0 

 49.0 

 55.0 

 61.0 

 66. 

 74.0 

 80.0 



10 . 





11.. . 





12 







13.. 







14.... 







15 







IG 











17.... 









18 . 









19 









20 





















658 



'able 2-1. — Merchantable volume of stcnuuood in cubic feet of jack pine trees of different 

 diameters and heights in Minnesota. 



[Based on taper curves. Stump height, 1 foot; top diameter outside bark, 3 inches ] 



Diam- 

 eter 

 breast 

 high. 



Total height of trees (feet). 



Bark. 



Basis. 



20 



30 



40 



50 j CO 



70 



80 



Mer 



chantab' 



e volum 



e, including bark (cubic f 



;et). 



Inches. 

 4.... 

 5.... 

 0.... 

 7.... 

 8.... 

 9 



0.9 

 1.4 

 2.2 

 3.0 



4.0 



1.1 



1.8 

 2.7 

 3.8 

 4.9 



0.2 

 7.7 



1.5 

 2.5 

 3.5 



4.8 

 6.1 

 7.8 

 9.6 

 11.4 

 13.5 

 15.5 

 18.0 



2.1 

 3.3 



4.6 

 6.3 

 8.0 

 10.2 

 12.3 

 14.8 

 17.3 

 20.0 

 23.0 

 26.0 

 29.0 

 33.0 

 36.0 









Per 

 cent. 

 20.0 

 19.0 

 18.1 

 17.4 

 16.9 

 10.4 

 18.0 

 15.6 

 15.2 

 14.7 

 14.2 

 13.0 

 13.0 

 12.3 

 11.5 

 10.7 

 . 9.8 



Trees. 



60 



73 



93 



95 



72 



62 



04 



36 



27 



10 



8 



2 



4 



3 



015 









5.8 

 7.7 

 10.1 

 12.5 

 15.4 

 18.2 

 22.0 

 25.0 

 29.0 

 32.0 

 37.0 

 41.0 

 46.0 

 50.0 

 55.0 



0.9 

 9.4 

 12.0 

 15.2 

 18.3 

 22.0 

 26.0 

 30.0 

 34.0 

 39.0 

 44.0 

 49.0 

 54.0 

 59.0 

 66.0 



"i4.'2"' 



18.0 

 22.0 

 26.0 

 31.0 

 36.0 

 41.0 

 47.0 

 52.0 

 59.0 

 65.0 

 72.0 

 79.0 



10 





11.... 





12 





13.... i 





14. ...1 





15....! 





16 







17.... 









18.... 









19.... 









20.... 





















