12 
Tab. IV. 
Stations 
Years 
Jan. 
Feb. 
Mar. 
Apr. 
May. 
Jun. 
Jul. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Ann’l 
Shiraito 
1900- 
1904 
6.3 
6.3 
9.3 
13.9 
17.9 
21.0 
23.4 
26.5 
23.4 
18.3 
12.9 
8.4 
15.6 
Omiya 
1899- 
1904 
6.1 
6.5 
9.9 
14.6 
18.6 
21.9 
24.5 
26.8 
24.3 
18.7 
13.1 
8.5 
16.1 
Goten. 
1900- 
1904 
3.2 
3.9 
7.4 
13.2 
16.5 
20.7 
22.6 
26.0 
23.3 
16.9 
11.1 
6.0 
14.2 
Nakano 
1900- 
1905 
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 
Skoji 
1900- 
1905 
0.3 
0.6 
4.4 
9.8 
13.8 
18.3 
21.2 
22.3 
20.0 
13.6 
7.6 
3.0 
11.3 
Tab. IV. Containing the mean annual and monthly temperature (C.) for five stations; 
observations made daily at 10 a.m.) 
From this table, we can calculate approximately the tem- 
perature at the height of 1000m. on the respective sides repre- 
sented by the five stations. In making the calculation, it is necess- 
ary to know the gradient of temperature on Mt. Fuji; but 
owing to the scarcity of data, we are not able to obtain any 
reliable value of the gradient on the mountain. Fortunately, 
however, the gradient of temperature up to the 1000m. elevation 
is known with great approximity from observations made for 
long years on Mt. Tsukuba. As both mountains are situated on 
the Pacific coast, and stand near each other, the results obtained 
for Tsukuba will hold good for the basal portion of Mt. Fuji. 
The following figures obtained by Dr. T. Okada are given 
as the gradient of air temperature per 100m. on Mt. Tsukuba. 
Tab. V. 
Months 
Jan. 
Feb 
Mar. 
Apr. 
May. 
Jun. 
Jul. 
Aug. 
Sept. 
Oct. 
Nov. 
Dec. 
Ann’] 
Gradient 
0.49 
0.52 
0.55 
0.60 
0.60 
0.57 
0.57 
0.57 
0.55 
0.55 

0.43 
0.43 
0.54 
