Eiipatorin m  Per folia tu m . 
Am.  Jour.  Pharm 
Oct.,  1892. 
results  within  the  limits  of  I  per  cent.,  but  is  not  suitable  as  a  prac- 
tical pharmacopoeial  test  on  account  of  the  time  its  execution  occu- 
pies. While  the  suggestion  of  Thorns,  that  a  minimum  percentage 
of  eugenol  in  clove  oil  should  be  a  pharmacopoeial  requirement  in 
the  future,  is  well  worthy  of  consideration,  it  is  suggested  by  that 
firm  that  eugenol  be  employed  in  place  of  oil  of  cloves,  since  the 
former  can  be  prepared  in  a  state  of  purity  without  difficulty,  and 
its  purity  easily  determined.  For  the  latter  purpose  it  is  only 
necessary  to. observe  the  specific  gravity  (1-072  at  150  C.)  and  boil- 
ing point  (253-2540  C),  and  to  ascertain  that  it  forms  a  clear 
solution  in  potash  solution  of  2  or  1  per  cent* 
EUPATORIUM  PERFOLIATUM. 
By  Henry  F.  Kaercher,  Ph.G. 
Contribution  from  the  Chemical  Laboratory  of  the  Philadelphia  College  of  Pharmacy. 
No.  115. 
The  leaves  and  flowering  tops  of  this  plant  have  already  been 
examined  by  several  investigators,  but  the  underground  portion 
does  not  appear  to  have  been  analyzed. 
A  quantity  of  the  root  was  collected  in  Northeastern  Ohio,  and, 
after  carefully  drying,  was  submitted  to  proximate  analysis  with  the 
following  results  : 
Per  Cent. 
Fat  and  resin  (soluble  in  ether),   o*6o 
Resin  and  bitter  principle  (soluble  in  alcohol),  i'59 
Mucilage,  i*75 
Dextrin,  3 '00 
Glucose,  -i'45 
Saccharose,  5  "60 
Undetermined  extractive  (soluble  in  water),  4*90 
Soluble  in  dilute  sodium  hydrate  solution,  2*42 
Soluble  in  diluted  hydrochloric  acid,  270 
Inulin,   .4-90 
Other  products  (soluble  in  hot  water),  3.40 
Lignin,  17*62 
Cellulin,  24-69 
Asb,  10-67 
Moisture,  12-40 
Loss,  2-31 
Total,   100 -co 
The  inulin  was  estimated  in  a  separate  portion  of  the  drug, 
according  to  Dragendorff's  method,  with  the  above  results. 
