38 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



Stem Analysis of Scots Pine (Fig. 3). 



The tree was cut into six pieces, which gave the following 

 cross-sections : — 



From the graphical representation of the diameter increment 

 at 5 feet above the ground, it can be seen that, at 19 years of 

 age for both species, the Corsican pine has a diameter greater 

 than that of Scots by i'q inches. By comparing the volumes 

 at 19 years the following figures are obtained : — 



Corsican pine 

 Scots pine 



height 28 feet. 

 „ 27 „ 



