A NEW METHOD OF RESEARCH. 



x 9 



points and under different conditions. In the near future it is pro- 

 posed to make a careful systematic study of the motion of the vapor at 

 various regions in the fiocculi, in order to determine whether it is gen- 



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erally upward or whether there may be frequent evidence of down- 

 ward currents or of currents more nearly parallel to the solar surface. 

 Many photographs show the existence of fiocculi remarkable for 

 their great brilliancy. In these regions active eruptions are in 



