18 



NEW HAMPSHIRE EXPERIMENT STATION [Bulletin 255 



Age 

 years 





70' 



60' 7\ 



SO' 



4V'. 



JO' 



20'. 



/OOO 

 EZl P/ne 



£O0C 3000 

 E3 Hardihood 



O C rG3) 



4000 SOOO ^251X2 

 Birch 



Fig. 4. Distribution of age classes, (Insert) An unusually good stand 

 of pine in the northwest corner of town — classified as pine 50-8. 



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