SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 87, NUMBER 10 



LETHAL ACTION OF ULTRA-VIOLET LIGHT 

 ON A UNICELLULAR GREEN ALGA 



(With Two Plates) 



BY 



FLORENCE E. MEIER 



Division of Radiation and Organisms, Smitlisonian Institution 



(Publication 3173] 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



AUGUST 17, 1932 



