A STUDY OF NATURAL REPRODUCTION 
DOUGLAS FIR 
MADE IN 1913 BY 
WIND RIVER EXPERIMENT STATION 
YACOLT BURN OF 1902. COLUMBIA NATL FOREST 
WASHINGTON 
Legend 
i 6.7,0,9.10 Years old 
I LachlOOptrflcreindicate 
I 6J8.SJ0 Years old 
I Over 500 per Acre 
1 12,3,4,5 Years old 
I E ach lOOperAcre indict 
1 1,2.3.45 Years old 
0ver500 per fie re 
N Noble Fir 
-tilYears old 
sJ Each/OOperAcreindicafi 
] // Years old 
“ 0ver500per Acre 
^ Over 100 yrs old 
O Under lOOyrs old 
M Western Hemlock 
C Western Red Cedar 
