fluence comes from weather conditions as- 
sociated with the quantity, composition, and 
continuity of fuels. Knowledge of crown 
weights furnishes a way of estimating the 
amount of overstory fuel in uncut stands as 
July 1963 
well as the amount of slash created by thin- 
ning or harvest cuttings. These estimates of 
weight, together with knowledge of other fire 
influences, will provide for more accurate 
prediction of fire behavior. 
JAMES Ky BROWN, Research Forester 
ae, 
