34 
Tab. XXIX. 
1 2 3 4 5 6 7 8 9 10 II 12 11 14 15 16 17 58 19 20 25' 22 
. Forest growth in general. 
Larix leptoplepis. 
— Pinus densiflora. 
- Deciduous forest. 
c) Plant-formation of Part III. 
Now passing on to the north side, let us study Part III. 
The flank is generally like Part II., but has a far more deve- 
loped forest-formation in the middle. The prairie is equally 
broad and extensive, not well suited to cultivation. This mono- 
tonous scenery of the prairie-formation is broken by lava-streams 
which show themselves here and there by the forests upon them. 
