154 



Forestry Quarterly. 



4.3% 



2.8 



1.6 



1-4 

 .6 



The Red Pine now standing in this area consists to the extent 

 of 8 per cent, of scattered large poles of 8 and 9 inch d. b. h. 

 Below these there is a large gap as might be expected from the 

 absence of sapling growth in the mature stand. Then at 3 inches 

 and under, the great bulk of the 20-year old reproduction comes 

 in, 30 per cent of it running in the 2 inch class. These large 

 poles are apparently the oppressed trees of the old stand. They 

 are over 140 years of age and have proved too old to respond 

 to the opening up. Their crowns are still short and narrow, and 

 save for slightly increased growth-rings of the past 23 years they 

 are vmchanged. 



The Mixed Association — Red Pine-White Pine-Hardwoods. 



This formation covers about 70 acres of the Sand Plain. It 

 lies as a belt between the Red Pine and the pure Hardwoods. It 

 is here that the White Pine reaches its best individual develop- 

 ment, and the Red Pine also shows an improvement over its 

 condition in the pure stand- 



The total density averages 340 trees per acre and up as fol- 

 lows: 



In the diameter classes 61 per cent, of the Red Pine lies in the 

 large and small pole group, while 37 per cent, of it rises into 

 standards (over 12 inch). Of the White Pine, 27 per cent, is 



