20 



A PRIMEK OF FORESTRY. 



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

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

 fiye parts form a series of eyen-aged groups of sprouts 



Fig. 11.— YelloAV poplar sprovit forest in Maryland. 



from 1 to 35 years old. Eyer}^ 3^ear the sprouts on one 

 part reach the age of 35 years and are read}^ for cutting. 

 Simple Coppice is a yer}^ useful silyicultural S3'stem, 

 and the easiest of all to apph\ The chief requirements 

 for its success are good reproduction from the stumps, 



