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to me that it will require some explanation, besides merely 
that of the solar induction acting through the earth’s atmo- 
sphere on to the surface of the earth. It would rather 
imply that the sun acts on some electricity in the higher 
regions of the earth’s atmosphere, and that electricity in 
^fehese regions acts again on the surface of the earth ; but, 
however this may be, the effect of the assumptions 
described in this paper would be much the same. 
