20 A PRIMER OF FORESTRY. 



are of the same age. At the end of thirty -five years, 

 when the whole woodlot has been cut over, the thirty- 

 five parts form a series of even-aged groups of sprouts 



FIG. 11. Yellow poplar sprout forest in Maryland. 



from 1 to 35 years old. Every year the sprouts on one 

 part reach the age of 35 years and are ready for cutting. 

 Simple Coppice is a very useful silvicultural system, 

 and the easiest of all to apply. The chief requirements 

 for its success are good reproduction from the stumps, 



