On the Effect of_TopogTaphy on the Precipitation in Japan. 



19 



which run nearly parallel to 

 each other, shows a maxi- 

 mum in winter and a secon- 

 dary maximum in summer. 

 We may also remark a paral- 

 lelism of R and R'. 



The fact that a for June 

 becomes negative is no 

 serious objection to our 

 tlieory, but rather due to the 

 inadequacy of the simple 

 assumption (B). This might 

 have been easily avoided if 

 for an instance we distinguish 

 R2 and R3 instead of putting 

 them equal to each other. 

 Assuming «=12.6 which is 

 the mean values of «'s for 

 May and July, and putting 



rc = R' + R"—(ic^ 

 we obtain i?" = 39, c, = — .15, 

 c.= -3.90 and C3=-13.30. 

 Thus the positive values of 

 CS disappears. Substituting 

 these values of c"s, however, 

 the general feature of the 

 c-curves is not altered. 



According to our pre- 

 vious theory, the values of 

 c's must chiefly depend on 

 the component of the barometi'ic gradient parallel to the ^'-axis 

 making an angle of about 20° with the /y-axis. Calculating the x- 

 and 2/ -components by 



