FicurE 37.—A, A stand of dead and de- 
cadent ponderosa pine saw timber 
amply stocked with the wrong species 
of reproduction (Douglas-fir). B, In 
this stand there is a minimum of 
decadent timber, a good distribution of 
age classes, and ponderosa pine is suc- 
ceeding itself. The long-run silvicul- 
tural problem is to convert the ponde- 
rosa pine area in western Montana to 
the condition shown here. 
F-219333, 354395 
16 Forest Resource Report No. 5 U. 8. Department of Agriculture 
