Am.  Jour.  Pharm.  ] 
Feb.,  1890.  | 
Eupatorium  Purpureum. 
79 
*                                                     •                 i.  •  ii. 
Per  Cent.  Per  Cent. 
C,     .    •    •    •  '                                                            71 -oo  71  25 
H,    ..........  5-13  520 
O,.    •    •    •    •            .  •    .    •    •    23-87  .  23-55 
10000  iocroo 
The  crystals  obtained  by  this  purification  with  animal 
charcoal  appeared  in  acicular  tufts  when  viewed  by  the  naked 
eye,  but  under  the  microscope  were  found  to  have  the  more 
prismatic  form  shown  in  the  accompanying  figure. 
A  few  more  elementary  analyses  were  made  of  this  sub- 
stance, amounting  to  ten  in  all,  the  average  of  which  gave 
the  following  percentages  and  formula : 
Average  of      Calculated  for 
10  Analyses.  (C^HnOa). 
Per  Cent.         Per  Cent. 
<-\  70-9^  70*94 
H,  5/41  5-42 
fw,f  Q,    •   •  .  •   •   •   •   m*w?  '   •  •   •   •   23  6r  23-64 
TOO'OO 
1 00  (  k  > 
