32 



THE WHITE PINE 



the measurements of a restricted number of 

 specimens growing in mixture with the Pine. 

 These values are graphically represented in the 

 figures by means of curves. 



OX^Ji Initio. 



AGE. 



10 





30 



40 



50 





HEIGHT IN 



FEET. 





White Pine 



7.4 



25.0 



41.5 



54.5 



64.5 



Norway Pine 



6.6 



22.3 



37.3 



49.5 



59.0 



Pitcli Pine 



5.3 



17.0 



28.6 



38.0 



45.0 



Hemlock 



1.1 



4.0 



8.0 



12.9 



28.0 



Red Oak 



9.8 



28.0 



43.0 



52.7 



59.4 



Cnestnut Oak 



9.8 



26.3 



40.3 



49.6 



55.9 



Wnite Oak 



6.5 



20.0 



34.0 



43.7 



49.9 



Pignut Hickory 



7.9 



23.0 



36.9 



45.9 



51.8 



Chestnut 



15.6 



33.8 



46.3 



54.0 



58.8 



Beech 



6.9 



19.9 



34.9 



47.9 



55.9 





8.9 



22.8 



36.4 



45.3 



51.3 



White Ash 



9.0 



26.3 



45.0 



56.0 



62.6 



Black Birch 



12.5 



31.0 



45.0 



54.1 



60.5 



Black Cherry 



8.1 



22.5 



36.0 



46.0 



52.8 



Tulip Tree 



15.7 



35.4 



51.0 



61.5 



68.1 



Basswood 



13.1 



29.1 



42.6 



52.8 



60.3 



Red Maple 



9.8 



23.9 



36.5 



46.9 



54.0 



