542  Ar alia  Nudicaulis.  { A^cJtoberPi897 m" 
made,  yielding  3  58  per  cent,  of  the  dry  Aralia,  of  which  24-36  per 
cent,  was  ash. 
The  next  extraction,  made  with  an  acid  menstruum  of  1  part  of 
sulphuric  acid  and  5  parts  of  water,  yielded  56-10  per  cent,  with 
11-67  Per  cent,  of  ash. 
The  final  extraction,  with  an  alkaline  menstruum,  yielded  6  89 
per  cent. 
As  a  summary  the  following  table  is  presented  : 
Extract  with 
Per- 
centage 
of  dry 
drug. 
Containing 
Chloroform  .  .  . 
Alcohol,  Sopercent. 
Water  . 
Acid  i,  water  i  .  . 
Alkaline  solution  . 
( By  subtraction )  . 
3-38 
875 
3-58 
56-10 
6-89 
21*30 
Resin,  3-05  per  cent.;  oil,  0-33  per  cent. 
Tannin  ;  organic  acid  ;  acid  resin  (neutral  resin  ?). 
Albuminous  bodies  ;  coloring  matter. 
Mucilaginous  matter. 
Crude  fibres,  etc. 
Cellulose. 
TOO -CO 
Further  investigation  will  be  conducted,  especially  on  the  oil  and 
resins  in  which  the  active  medicinal  properties  seem  to  reside. 
PHARMACEUTICAL  PREPARATIONS. 
A  quantity  of  the  fresh  rhizome  of  Aralia  nudicaulis,  gathered  in 
the  fall,  was  digested  with  alcohol,  according  to  the  directions  of 
the  Pharmacopoeia  for  making  fresh  tinctures.  This  tincture,  Tinc- 
tura  Araliae  Nudicaulis  Recentis,  after  standing  nearly  a  year, 
exposed  to  the  varying  temperatures  of  winter  and  summer,  showed 
no  precipitate,  and  possessed  the  odor  and  taste  of  the  plant  in  a 
marked  degree.  Mixed  with  water  it  forms  a  milky  precipitate  indi- 
cating the  presence  of  oil  and  resin.  It  has  a  beautiful  gold- 
yellow  color  which  seems  to  be  permanent.  A  fluid  extract  was 
prepared  from  the  rhizome  gathered  in  the  spring.  A  menstruum 
of  4  part  s  of  alcohol  and  I  of  water  was  used,  and  the  general 
directions  of  the  Pharmacopoeia  for  making  fluid  extracts  were 
followed.  The  evaporization  of  the  second  percolate  was  performed 
at  a  very  low  temperature,  in  order  not  to  drive  off  oily  or  resinous 
parts.    The  fluid  extract  resembles  the  tincture,  but  is  darker, 
