SMITHSONIAN  MISCELLANEOUS  COLLECTIONS 
VOLUME  96.  NUMBER  6 
(End  of  Volume) 
Hrtbur  jfunb 
GROWTH   OF   AVENA   COLEOPTILE   AND 
FIRST  INTERNODE  IN  DIFFERENT 
WAVE-LENGTH    BANDS   OF 
THE  VISIBLE  SPECTRUM 
BY 
EARL  S.  JOHNSTON 
Assistant   Director,   Division  of  Radiation  and  Organisms 
Smithsonian    Institution 
(Publication  3444) 
CITY  OF  WASHINGTON 
PUBLISHED  BY  THE  SMITHSONIAN  INSTITUTION 
NOVEMBER  6,  1937 
