ANNUAL INCREMENT PER ACRE- BOARD FEET 
Dec. 15,1925 Yield Capacities of Yellow Pine Type in California 1131 
Fig. 7—Yield in. cubic feet per acre on age, bark included 
1600 
1400 
1200 
1000 
800 
600 
400 
200 
1 
tk 
K1 7 
1 / 
")/ 
<oj 
i 
i 
f ' 
3' 
1 
Y2 
"^4 
‘ 
40 
60 
80 100 120 
TOTAL AGE, YEARS 
140 160 
Fig. 8 —Periodic annual increment per acre, board feet 
