APPENDIX. 



Detail of Sections. 



Diameter at. 



Age of 



Tree, 108 Years; Total Height, 6.i Feet. 



To illustrate — this tree was cut leaving a stump 20 

 inches hijjli. In the stump were 98 rings. 14 feet 

 and 4 inches higher, or 16 feet from the ground, the 

 tree was cut off and 77 rings counted. We know, 

 tlierefore, that tlie tree in growing from 20 inches 

 high to IH feet occupied 21 jears. The next 10 1-2 

 feet in a similar way are found to have lieeu grown 

 in n years. Adding to the 98, 10 years for the age 

 of the stump, ttie tree when cut is ascertained to be 

 108 years old. It is now 65 feet high. All these 

 facts relating to height grow th are gathered into the 

 accompanying table. 



