32 



s. Xakamura ajid K. Honda : 



double amplitude of 10 cms., but it was much damped and died 

 away very quickly. 



During the interval Sept. 6-16. many records were taken with 

 a number of different periods, of which the most prevalent were 

 31.5, 22.8 and 17.1 having double amplitudes of 2 or 3 cms. The 

 observed values were: 



TABLE 15. 



Nagahama. II. 



m. 



IB. 



m. 



32.] X 16 



24.9x16 



16.3 X 6 



31.8x19 



24.8 X 20 



14.5x23 



31.5 X (33 



23.2 x 4 



13.7 X 19 



30.8 X 9 



22.9x21 



12.5x11 



30.6 X 17 



22.8x35 



12.0 X 29 



29.5x11 



22.5 X 12 



10.5x47 



29.4 X 6 



17.7x14 





28.8x14 



16.8 X 9 





Okinoshima. 



This is a small island in the eastern part of the lake. The 

 periods recorded here during Aug. 19-20 vvei'e as follows: 



TABLE 16. 



Okinoshima. 



in. 



10.2x11 

 9.2 X 9 



m. 



7.6 X 8 

 6.0x12 



m. 



4.9: 



