Am.  Jour.  Pharm.! 
A-igust,  1887.  J 
Analysis  of  Burdock  Root. 
393 
By  using  the  corresponding  shop  bottle  for  the  manipulation  it 
serves  the  additional  purpose  of  cleaning  the  same  perfectly.  The 
filter  used  for  aqua  menthae  piperita?,  if  carefully  dried  and  preserved, 
may  be  used  again  for  the  same  purpose,  etc. 
The  whole  operation,  excepting  filtering,  does  not  occupy  over  five 
minutes  time,  and  the  resulting  preparation  cannot  be  otherwise  than 
pure.  A  No.  33  filter  has  been  found  sufficient  for  four  pints  of  medi- 
cated water,  although  more  paper  may  be  used  to  make  sure.  For 
aqua  camphorse  a  solution  is  first  made  in  alcohol  as  in  the  cotton 
process. 
Leavenworth,  Kas.,  July  17,  1887. 
ANALYSIS  OF  BURDOCK  ROOT,  LAPPA 
OFFICINALIS,  All. 
By  Gustayus  A.  Weckler  Ph.G. 
(From  an  Inaugural  Essay.) 
The  root  was  powdered  and  contained  then  8*21  per  cent,  of  moist- 
ure and  yielded  3*67  per  cent,  of  ash  consisting  of  salts  of  sodium, 
potassium  and  iron.  The  result  of  the  proximate  analysis  may  be 
tabulated  as  follows : 
Extract  by  petroleum  benzin  :  fixed  oil  400  .400 
Extract  by  ether :  fixed  oil  539 
Wax,  soluble  in  chloroform  Oil  .550 
Extract  by  absolute  alcohol :  extractive  sol.  in  water  2.210 
Phlobaphene  sol.  in  ammonia  075 
Resins  965  3.250 
Extract  by  water:  mucilage,  little  albumen  4.000 
Sugar  (glucose)  5.000 
Extractive  matter  8.400 
Inorganic  matter   1.200  18.600 
Extract  by  Foda:  albuminoids   2.720 
Other  organic  compounds  200      2  920 
Extract  by  dilute  HC1,  mostly  organic  compounds   4.200  4.200 
Inulin,  cellulin  and  lignin   70.0S0 
The  fixed  oil  obtained  with  petroleum  benzin  was  of  an  orange 
-color,  dissolved  in  absolute  alcohol  and  turned  reddish  brown  with 
nitric  acid. 
The  ether  extract  yielded  to  absolute  alcohol  an  orange-colored  fixed 
