Seiches in Some Lakes of Japan. 



31 



Katsuno. 



The periods of seiches observed here during August 9-10, are 

 as follows: 



TABLE 13. 



Katsuno. 



in. 



m. 



m. 



69.5 X 5 



11.7 X 9 



9.5x11 



16.5 X 8 



11.5 X 4 



9.1 X 42 



The motions with periods 11.6 and 9.2 were predominating seiches 

 at this place. They were well developed having a double amplitu- 

 de of about two centimeters. 



Nagahama. 



The oscillations recorded here during Aug. 21-22 had the 

 periods given in the following table. 



TABLE 14. 





Xagahama. T. 







m. 



m. 



m. 





35.0 X 2 



17.5 X 6 



11.9X 9 





34.5 X 3 



16.8 X 4 



9.5 X 6 





32.8 X 2 



14.8 X 6 



6.7 X 5 





18.2 X 7 



13.6X 8 







The mo.st predominant motion among them was 17.5 reaching a 



