







— *• - -- - 

















B 







1 **** 









I V < 





Sli _ • .4' ^ 



Figure 15. — Ponderosa pine residue for (top or bottom) untreated 



and 7.5 percent (NH^) 2HPO14 treated fuel beds 



Figure 16. — Aspen excelsior residue for (top to bottom) untreated, 7.5 percent (NH k ) 2 S0^ 3 



and 7.5 percent (NH^) 2 HPOi+ treated fuel beds. 



17 



