24 



S. Xakamura and K. Honda : 



TABLE 3. 



Chikubushima. 



minutes. 







61.1 



X 



5 



30.7 



X 



10 



11.0 



X 



16 



As the iiiotious are ail very small, the double amplitudes being 

 only a few millimeters, and as the numbers of observations are 

 small, the real existence of these waves is doubtful. But the 

 second motion of 30.7 minutes existed unquestionably. 



Chomeiji. 



Here the observations were continued for only 13 hours, 

 during which the weather was very calm, and a motion of a 

 31-minute period was very significant, the double amplitude being 

 more than 3 centimeters. The observed periods are 



TABLE 4. 



Chomeiji. 



m. 







32.5 



X 



3 



31.5 



X 



12 



31.0 



X 



5 



9.9 



X 



9 



9.7 



X 



10 



9.4 



X 



1- 



