24 
The Colorado Experiment Station. 
PLATE IX. 
a. Cones of Engleman spruce. 
b. Cone of Blue spruce. 
c. Cone of Douglass fir. 
1. Seeds of Pinon pine. 
2. Seeds of Limber pine. 
3. Seeds 
4. Seeds 
5. Seeds 
6. Seeds 
7. Seeds 
(all natural size) 
of Bull pine, 
of Lodge Pole Pine, 
of Douglass fir. 
of Blue spruce, 
of Red cedar. 
