The Astrophysical Journal 



The forty-third volume, January to June, 19 16, among other papers 

 will contain important articles on 



ASTROPHYSICS 



On the tempera tare and radiation of the sun, by Felix Biske, of the 

 University of Warsaw; on the albedo of the planets and their satel- 

 lites, by Professor Henry Norris Russell, of Princeton University 



The Astrophysical Journal published monthly excepting in February and August 



Subscription price, $5.00 

 Foreign postage, 62 cents ' Canadian postage, 30 cents 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO - - - - - ILLINOIS 



