Solar Radiation

Abstract

AT the conclusion of his British Association lecture on Phosphorescence,¹ Mr. Jackson makes a suggestion with regard to solar radiation which will doubtless receive due attention from those who are interested in solar physics. It is one of especial interest to me because, by an entirely different train of thought, Mr. Jackson has arrived at a possible explanation of the relation between sun-spots and terrestrial magnetic disturbances which is practically identical with a suggestion I have recently put forward in a paper on “The cause of the darkness of sunspots,” published in the Astrophysical Journal (April 1897).