20 Art. 6.— T. Terada : 



therefore those short period fluctuations whicli appear superposed 

 on those variations with 1 1 years or still longer periods. What 

 seems most remarkable to me is the fact that the correspondence 

 of this short period waves with the variations of d is so conspicuous 

 that it seems to remove at least a greater part of the difficulties 

 hitherto felt in correlating many terrestrial phenomena with the 

 simple solar cycle of 11 years. 



The results of further investigations now in progress will 

 follow in due time. 



PubHshed January 24th, 1923. 



