SOLAR EADIATION" ABBOT 



193 



primary effects in certain localized centers of influence upon the 

 earth. Thence the effects travel southeastward in the well-known 

 manner and reach distant localities as successive impulses at later 

 periods depending on the distance traversed from the several centers. 



LAG IN WEATHER RESPONSE TO SOLAR CHANGES 



The phenomena of lag in weather response to solar changes are, I 

 am convinced, important. Mr. Clayton has produced evidence which 

 my studies also confirm, indicating that the lag of weather effects 

 caused by periodic solar variations is roughly proportional to the 



