^Ap?r/i88f        Fluid  Extracts  of  the  New  Pharmacopoeia,  181 
For  this  preparation  the  Pharmacopoeia  of  1870  directed  stronger 
alcohol,  the  present  Pharmacopoeia  directs  alcohol,  and  the  Philadelphia 
College  of  Pharmacy  recommended  the  same  menstruum;  a  sample 
thus  prepared  in  December,  1879,  has  now  only  a  slight  precipitate 
and  a  very  thin  coating  of  matter  on  the  sides  of  the  bottle,  otherwise 
the  preparation  has  kept  very  well. 
ExTR ACTUM  Nucis  YoMic^  Fluidum. — Fluid  Extract  of  Nux 
Vomica. — This  is  one  of  the  eleven  fluid  extracts  added  to  the  list  by 
the  Committee  of  Revision ;  the  Pharmacopoeia  directs  a  menstruum 
composed  of  eight  parts  of  alcohol  and  one  part  of  water,  which  will 
no  doubt  thoroughly  exhaust  the  drug ;  the  chief  utility  of  this  prep- 
aration would  seem  to  be  its  availability  for  the  quick  preparation  ot 
the  abstract,  solid  extract  and,  perhaps,  the  tincture  of  nux  vomica. 
ExTRACTUM  Pareiar^  Fluidum. — Fluid.  Extract  of  Pareira. — 
For  this  preparation  the  Pharmacopoeia  of  1870  directed  a  menstruum 
composed  of  eight  fluidounces  of  alcohol,  three  fluidounces  of  glycerin, 
and  five  fluidounces  of  water,  finishing  the  percolation  with  diluted 
alcohol,  and  adding  one  fluidounce  of  glycerin  to  the  dilute  percolate 
before  evaporation.  The  present  Pharmacopoeia  directs  diluted  alcohol, 
with  twenty  per  cent,  of  glycerin  in  the  first  one  hundred  parts  of 
menstruum  ;  and  the  Philadelphia  College  of  Pharmacy  recommended 
the  same.  A  sample  thus  prepared  in  October,  1879,  kept  well  for  a 
considerable  time,  and  now  contains  only  a  moderate  precipitate,  about 
the  one-fourth  of  an  inch  deep  in  a  four-ounce  bottle,  but  there  is  also 
a  thick  deposit  of  a  transparent  brown  substance  on  the  sides  of  the 
bottle ;  another  sample  prepared  at  the  same  time,  with  a  menstruum 
composed  of  one  part  of  alcohol,  and  three  parts  of  water,  and  twenty 
per  cent,  of  glycerin,  now  contains  a  large  deposit,  over  half  an  inch 
deep  in  a  four-ounce  bottle;  there  is  also  a  deposit  on  the  sides  of  the 
bottle,  but  not  near  so  thick  as  that  on  the  sides  of  the  other  bottle. 
The  condition  of  these  samples  seems  to  indicate  that  a  more  alcoholic 
menstruum  is  required  for  the  preservation  of  this  preparation,  and  it 
is  probable  that  one  containing  not  less  than  three  parts  of  alcohol  to 
one  of  water,  with  the  same  quantity  of  glycerin  as  is  now  directed, 
would  accomplish  the  object. 
ExTRACTUM  Pilocarpi  Fl.vidvm.— Fluid  Extract  of  Pilocarpus. — 
For  this  newly-introduced  preparation  the  Pharmacopoeia  directs  the 
use  of  diluted  alcohol  as  the  menstruum ;  the  Philadelphia  College  of 
Pharmacy  recommended  one  part  of  alcohol  and  two  parts  of  water ; 
