Am.  Jour.  Pharm. 
April,  1897. 
Parthenium  Hysterophorous. 
175 
of  the  mode  of  preparation.  Guyet's  paper,  as  reported  in  full  in 
La  Cronica  Medico-  Quirurgica,  of  Havana,  is  a  resume  of  the  chemi- 
cal researches  of  Ulrici,  with  an  account  of  the  therapeutical  proper- 
ties of  the  drug,  as  deduced  by  the  author  of  the  article.  Ulrici 
obtained  from  the  plant  black  shining  scales,  from  an  alcoholic  solu- 
tion of  which  he  separated,  by  means  not  stated,  a  white  amorphous 
residue  which  crystallized  in  fine  needles. 
Fig.  6.  Under  surface  of  leaf,  magnified  about  600  diameters,  s,  stomata  ; 
k,  hairs  ;  d,  spiral  ducts. 
He  then  dissolved  another  portion  of  the  black  scales  in  water, 
cleared  of  coloring  matter  by  slight  excess  of  potassa  and  extracted, 
with  chloroform,  a  substance  to  which  he  assigned  the  formula 
C19H28NOe. 
Merck's  Bulletin,  October,  1888,  describes,  without  method  of 
manufacture,  the  alkaloid  parthenicine  of  Ulrici,  without  reference 
to  the  original  article.    As  this  statement  is  two  years  older  than 
