13 
From Tables IV. and V-, we obtain the following table 
showing the mean temperature for month and year at the 
1000m. altitude on the respective sides of the mountain. 
Tab. VI. 
Months 
Sides 
Jan. 
Feb. 
Mar. 
Apr. 
May Jun. 
Jul. 
Aug. 
Sep. 
Oct. 
Nov. 
Dec. 
Aim’l 
1000m. altitude on 
the Shiraito side. 
3.8 
3.6 
6.5 
10.8 
14.4 18.1 
20.5 
23.6 
20.6 
15.5 
10.7 
6.2 
12.8 
„ „ Omiya side. 
1.9 
2.1 
5.1 
9.5 
13.5 
17.1 
19.7 
22.0 
19.5 
13.9 
4.3 
4.8 
11.5 
„ „ Goten side. 
0.5 
1.1 
4.4 
9.9 
13.2 
17.6 
19.5 
22.9 
20.3 
13.9 
8.8 
3.7 
11.2 
„ „ Nakano side. 
0.9 
0.3 
4.1 
9.8 
13.6 
18.1 20.9 
22.3 
19.3 
13.5 
8.4 
3.3 
11.2 
„ „ Shoji side. 
0.3 
0.3 
4.1 
9.4 
13.4 
17.9 20.8 
21.9 
19.7 
13.3 
7.3 
2.7 
11.0 
On looking at this table, we see that the temperature is the 
highest on the Shiraito side and next highest on the Omiya side. 
Other things being equal, the higher the temperature, the better 
plants grow. This is clearly shown in the plant formation of 
Mt. Fuji. On the Shiraito side, the forest is the richest, and 
the Omiya side comes next. On the Shbji side, the temperature 
is the lowest, but the forest is there favoured by the under- 
ground water due to the adjacent lake, and still more by the 
porous lava which covers all the ground*. On the Gotemba side, 
the temperature is comparatively high ; but this advantage being 
offset by the poor soil, we have here the poorest vegetation. 
3) Humidity. This most subtle thing plays an important 
role in plant formation. To my regret, we have no observations 
* The case that the forest of conifers is favoured by porous lavas which 
cover the ground is everywhere met with in Japan. In Mt. Maccarinupri, we 
find conifer-forests flourish on lavas, while deciduous trees, on the ground covered 
by tufas and ashes. 
