Bui. 741 , U. S. Dept. of Agriculture. 



Plate IV. 



Fig. 1.— Fenced Plot, Complement to Unfenced Plot Shown in Plate III, Fig. 1. 



At the end of the third season following cutting there remained 3,800 vigorous sprouts per acre cf 

 an average height of approximately 4 feet. This number three years after cutting is more than 

 ample for the establishment of a full aspen stand. 



Fig. 2.— Three-Year-Old Aspen Sprouts on Clear-Cut 

 Fenced Plot Killed by Bark-Eating Rodents. 



Note extent of removal of bark at various places along main stem and at 

 base of large lateral branch. 



