i66 Forestry Quarterly. 



This table shows that the ''breast high" point of 4^ feet above 

 the ground was reached between 15 and 16 years and enabled us 

 to secure considerable information concerning the growth of such 

 stems as were sectioned at the 4^ foot point. 



From the complete stem analysis of 43 trees and measure- 

 ments made on 98 others, some 369 measurements were selected 

 and plotted for the purpose of striking curves showing the rela- 

 tions existing between age and height, and the following table 

 shows the progress in height growth from one decade to another 

 for tree classes. The last two columns show the height growth 

 for red pine in the Muskoka region and in West Toronto, and 

 form an interesting comparison with the Nipissing figures. 



