722 
Journal of Agricultural Research 
Vol. XXX, No. 8 
0 Douglas Fir (lower elope) (67fires) 
(upper poin+s assumed +o represent 
timber, lower points, brush land - 
old burns) 
H Fir (upper slope) (ll-too few for good 
curve-appears to be about same as 
•upper DF curve.) 
Fig. 23.—Western Washington and Oregon (Region 5): 
Relation between size of fire and cost of suppression 
