914 



Dr. C. Davison on the Annual and 



Diurnal Periodicity of After- Shocks. 

 The records at Gifu and Nagoya refer to the after-shocks- 

 of the Mino-Owari earthquake of October 28, 1891 ; at 

 Nemuro to those of the Hokkaido earthquake of March 22,. 

 1894 ; at Chiran to those of the Kagoshima earthquake of 

 September 7, 1893 ; and at Kumamoto to those of the- 

 Kumamoto earthquake of July 28, 1889. 



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