SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 65, NUMBER 3 



Ibobgkfns jfunb 



A STUDY OF THE RADIATION OF THE 

 ATMOSPHERE 



BASED UPON OBSERVATIONS OF THE NOCTURNAL 



RADIATION DURING EXPEDITIONS TO 



ALGERIA AND TO CALIFORNIA 



BY 



ANDERS ANGSTROM 



(Publication 2354) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



1915 



