Bui. 580, U. S. Dept. of Agriculture. 



PLATE I. 



FIQ. 1. UNINJURED THRIFTY YELLOW-PINE REPRODUCTION FROM 

 4 INCHES TO 4 FEET TALL AND FROM 3 YEARS TO 14 YEARS 

 OLD. 



FIQ. 2.-A YELLOW PINE 4 1 A FEET TALL, WITH LATERALS 

 SEVERELY GRAZED BY SHEEP. LEADER OUT OF REACH OF 

 THIS CLASS OF STOCK. 



