ryo9] PHILLIPS—A STUDY OF PINON PINE 223 
tion will be secured in even a bare majority of sites. Until the prob- 
lem of reproduction is more thoroughly worked out, the policy should 
be to remove only the dead and dying pifion trees for fuel, thus allow- 
ing a careful management without encroaching seriously upon the 
natural stands as is being done at the present time. It would seem 
from the nature of the site that the stand could be made to succeed 
best by the selection system, consisting of the removal of the dying 
trees. The sale of this fuel with that of a large portion of the seed 
should furnish a moderate income. This production would be low, 
as contrasted with high-type coniferous forests in other regions, but 
when consideration is given to the value of this species for fuel and 
seed, the question of immediate returns is a minor one. 
UNIVERSITY OF NEBRASKA 
