A.m.  .Tour.  Pharm. 
November,  1914. 
The  Germination  of  Belladonna  Seed'. 
499 
Treatment  of  Seeds  with  Hydrogen  Peroxide. 
It  has  been  found  that  hydrogen  peroxide  has  an  accelerating 
influence  on  the  germination  of  a  large  number  of  seeds,  and  for 
that  reason  the  following  experiment  was  undertaken  to  determine 
Fig.  7. — Curves  showing  comparative  germination  of  all  seeds  treated  with  sulphuric  acid 
for  1  minute  (1),  10  minutes  (2),  30  minutes  (3),  and  60  minutes  (4).  Seeds  were  sown  March 
3ist. 
whether  belladonna  seed  yielded  to  such  treatment.  The  hydrogen 
peroxide  used  was  the  commercial  kind  containing  40  per  cent,  of 
absolute  peroxide.    This  strength  is  designated  in  the  tabulations 
