1912. 



PUBLIC DOCUMENT — No. 31. 



71 



small split in one of the crott'lies of the larger branches. One 

 of the largest branches also showed a more or less decayed in- 

 terior resnlting from lack of proper treatment, which should 

 have been given years before ; but the tree was practically intact 

 at the time of its removal, and providing its root system was 

 normal it was certainly capable of growth for many years to 

 come, as was showm by its vigor at the time it was cut down. 

 By the aid of modern tree surgery what few defects the tree 

 possessed could easily have been remedied. 



Table shoiving the Groivth in Thickness of an Elm Tree, Ulmus Americana, 

 L. Measurements represent the Groivth of the Annual Rings in Decades. 



Decades. 



0-10, 

 10-20, 

 20-30, 

 30^0, 

 40-50, 

 50-60, 

 60-70, 



Growth in 

 Centimeters. 



5.0 

 11.0 

 10.8 

 8.5 

 5.8 

 4.2 

 5.4 



70-80, 

 80-90, 

 90-100, 

 100-110, 

 110-120, 

 120-130, 



Decades. 



Growth in 

 Centimeters. 



4 4 

 3.6 

 4.4 

 5.4 

 4.2 

 3.4 



76.1 



