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o. A. Åkesson 



spots, may be easily explained by the fact that the latter, upon an average, 

 exist for a longer time than the former. Hence it is obvious that the opinion 

 expressed by Stephani is not confirmed by these observations. In tig. 8 I have 

 given a graphical representation of the difference between the number of arising 

 and disappearing non-recurrent spots at different distances from the central meri- 

 dian. As is seen from the figure, there exists' a close agreement between the 

 observations from the two periods. 



