Bul. 580, U. S. Dept. of Agriculture. PLATE I. 
F—I RRH 
Fia. 1.—UNINJURED THRIFTY YELLOW-PINE REPRODUCTION FROM 
4 INCHES TO 4 FEET TALL AND FROM 3 YEARS TO 14 YEARS 
OLD. 
F—2 RRH 
Fie. 2—A YELLOW PINE 442 FEET TALL, WITH LATERALS 
SEVERELY GRAZED BY SHEEP. LEADER OUT OF REACH OF 
THIS CLASS OF STOCK. 
