4/3 
Assay  of  Drugs. 
[Am,  Jour.  Pharm. 
\     October,  1900. 
These  experiments  show  that  the  seedlings  growing  in  the 
J^-grain  solution  still  grew  more  than  those  in  solutions  of  and 
grain,  and  that  in  solutions  containing  between  yL-  and  I  grain 
there  was  a  gradual  decrease  in  growth  as  the  amount  of  strychnine 
was  increased. 
The  table  on  p.  477  gives  the  results  with  solutions  of  bru- 
cine  sulphate  (Merck's)  containing  -J^  grain,      grain,  ^  gnin, 
grain,  T^  grain,  \  grain,  f  grain,  §  grain,  4  grain,  1  grain  in  50  c.c. 
of  distilled  water. 
Comparing  the  above  experiments  with  those  in  which  strychnine 
was  employed,  we  notice  that  the  growth  of  the  seedlings  in  all 
cases  was  slightly  more  than  that  in  the  corresponding  strengths 
of  strychnine,  and  that  death  occurred  in  the  solution  containing 
1^  grain  of  the  alkaloid,  whereas  with  strychnine  the  toxic  per- 
centage was  1  grain  in  50  c.c.  of  water. 
The  following  experiments  give  the  results  at  the  end  of  the 
second  twenty-four  hours : 
BRUCINE  SULPHATE. 
Temperature  (i6°-2i°  C). 
Second  24  Hours. 
Pisum  Sativum. 
Lupinus  Albus, 
Per  Cent. 
Actual 
Growth. 
Remarks. 
Actual 
Growth. 
Remarks. 
Apparently  normal. 
Dead,  flabby. 
