different temperatures and pressures. The recent 

 discovery of the Stark effect affords an opportunity 

 to determine the influence of electric fields on light, 

 and to apply the results to the solar atmosphere. 

 And as the prolific researches of modern physics 

 continue to develop, much new assistance may be 

 expected for astrophysical inquiries. 



FIG. 65. Lights of Pasadena and Los Angeles from Mount Wilson. 



The outlook is thus a favorable one, from what- 

 ever standpoint it is viewed. The reappearance 

 of numerous sun-spots, after a long period of solar 

 calm, and the approaching completion of the 

 loo-inch reflector, should encourage research and 

 stimulate progress in all departments of the 

 Observatory's work. 



