Bui. 234, U. S. Dept. of Agriculture. 
Plate VII. 
Fig. 1.— Dense Stand of Lodqepole Pine, about 120 Years Old. 
Originally with 1,052 green trees per acre, nearly all under 7 inches in diameter, thinned 
by the removal of 260 converter poles and 300 lagging poles per acre. The thinning is 
probably too light to greatly benefit the remaining stand. Heavy thinning brings 
danger from windfalls. 
Fig. 2. -Stand of Lodgepole Pine, about 120 Years Old. 
Six thousand five hundred green trees per acre, badly in need of thinning. 
