186  Fluid  Extracts  of  the  New  Pharmacopoeia,    {  ^"aS'isss™' 
ExTRACTUM  KuBi  Fluidum. — Fluid  Extract  of  Bubus. — For  this 
preparation  the  Pharmacopoeia  of  1870  directed  a  menstruum  com- 
posed of  eight  fluidouuces  of  alcohol,  three  fluidounces  of  glycerin, 
iind  five  fluidounces  of  water,  finishing  the  percolation  with  diluted 
alcohol,  and  adding  one  fluidonnce  of  glycerin  to  the  dilute  percolate 
before  evaporation.  The  present  Pharmacopoeia  directs  forty-five 
grammes  of  alcohol,  thirty-five  of  water,  and  twenty  of  glycerin,  and 
then  finishes  the  percolation  with  a  sufficient  quantity  of  a  mixture  of 
nine  parts  of  alcohol  to  seven  parts  of  water.  The  Philadelphia 
-College  of  Pharmacy  recommended  diluted  alcohol,  with  ten^  per 
■cent,  of  glycerin  in  the  first  one  hundred  parts  of  menstruum ;  a 
sample  thus  prepared  in  January,  1880,  now  contains  a  rather  large 
precipitate,  about  half  an  inch  deep  in  a  four-ounce  bottle,  the  fluid 
•extract  appears  to  be  in  good  condition,  is  very  dark,  brownish-red, 
and  transparent  in  thin  layers.  The  officinal  menstruum  diflers  chiefly 
in  containing  ten  per  cent,  more  of  glycerin,  as  the  very  unusual  pro- 
portions of  nine  parts  of  alcohol  to  seven  parts  of  water,  really  is 
less  than  six  per  cent,  stronger  than  diluted  alcohol ;  another  sample 
prepared  at  the  same  time  as  the  first,  with  a  menstruum  composed  of 
two  parts  of  alcohol  to  one  part  of  water,  and  also  containing  ten  per 
<3ent.  of  glycerin,  now  contains  only  a  very  slight  deposit,  and  is  in 
every  other  respect  remarkably  well  preserved  ;  this  menstruum  would 
therefore  seem  better  adapted  to  blackberry  bark  than  the  officinal. 
ExTRACTUM  RuMicis  Fluidum. — I^luid  Extract  of  Eumex. — For 
this  newly-introduced  preparation  the  Pharmacopoeia  directs  diluted 
alcohol,  and  the  Philadelphia  College  of  Pharmacy  recommended  the 
same  menstruum;  a  sample  thus  prepared  in  January,  1880,  has  only 
a  slight  precipitate,  and  is  otherwise  in  excellent  condition. 
ExTRACTUM  Sabine  Fluidum. — Fluid  Extract  of  Savine. — For 
this  preparation  the  Pharmacopoeia  of  1870,  the  present  Pharmacopoeia, 
and  the  Philadelphia  College  of  Pharmacy  all  agree  in  the  use  of  alco- 
liol  as  the  menstruum ;  a  sample  thus  prepared  in  December,  1879, 
now  contains  only  a  very  slight  precipitate,  and  is  otherwise  in  excel- 
lent condition. 
ExTRACTUM  SanguinarIuE  Fluidum. — Fluid  Extract  of  Bangui- 
naria. — For  this  newly-introduced  preparation  the  Pharmacopoeia 
directs  the  use  of  alcohol  as  the  menstruum  ;  the  Philadelphia  College 
of  Pharmacy  recommended  two  parts  of  alcohol  and  one  part  of  water, 
^  In  the  table  this  was  incorrectly  given  as  twenty  parts. 
