Am.  Jour.  Pharm. 
November,  1914. 
j   The  Germination  of  Belladonna  Seed. 
5oi 
Figures  8  and  9  show  graphically  the  effect  of  the  treatment  with 
peroxide,  both  as  to  the  strength  of  the  solution  used  and  the  time 
of  treatment. 
FlG.  8. — Curves  showing  the   comparative  germination   of   all   seeds  treated   with  hydrogen 
peroxide  of  20,  40,  60,  80,  and  100  per  cent,  strength.    Seeds  sown  on  February  16th. 
It  is  evident  that  the  treatment  with  hydrogen  peroxide  is  of  very 
appreciable  benefit.  The  percentage  of  germination  during  the  first 
four  or  five  weeks,  when  compared  with  that  of  the  untreated  seeds 
