ON EARTHQUAKES, 1918-1924. 243 



8. Many matters of interest can be obtained from these data, though they cannot 

 be treated here. One illustration may be given. In five years out of the seven 

 September has many more shocks than other months, and in 1921 and 1922, when 

 this pre-eminence is not so marked, it is only eecond to May in 1921, and ties for 

 first place with AprU and December in 1922. 



H. H. TUENEB. 



University Observatory, Oxford. 

 1928 July 23. 



r2 



