SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 107, NUMBER 20 



(End of Volume) 



INFLUENCE OF LIGHT ON CHEMICAL 



INHIBITION OF LETTUCE 



SEED GERMINATION 



BY 

 ROBERT L. WEINTRAUB 



Division of Radiation and Organisms 

 Smithsonian Institution 



(Publication 3915) 



CITY OF WASHINGTON 

 PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MAY 27, 1948 



