PHARMACY  OF  THE  CINCHONAS. 
519 
Compound  Fluid  Extract  of  Bitter  Orange  Peel. 
Take  of  Bitter  Orange  Peel,  eighteen  troyounees. 
Serpentaria,  four  and  a  half  troyounees. 
Saffron,  one  and  a  half  troyounees. 
Alcohol, 
Dilated  Alcohol, 
Water,  of  each  a  sufficient  quantity. 
Triturate  the  Orange  Peel,  Serpentaria  and  Saffron  together, 
until  they  are  reduced  to  a  fine  powder,  and  divide  this  into 
three  equal  parts.  Moisten  the  first  part  with  four  fluidounces 
of  Alcohol,  pack  it  firmly  in  a  glass  funnel  prepared  for  percola- 
tion, and  pour  upon  it,  as  required,  first,  twenty  fluidounces  of 
Alcohol,  then  twelve  fluidounces  of  Diluted  Alcohol  and,  finally, 
eight  fluidounces  of  Water,  in  succession,  waiting  until  each 
liquid  has  disappeared  off  the  surface  before  supplying  the 
next.  From  this,  twenty-eight  to  thirty  fluidounces  of  percolate 
will  be  received,  and  this  percolate  should  be  separated,  as  it 
passes,  into  three  portions  ;  the  first  portion  of  four  fluidounces, 
the  second  portion  of  twelve  fluidounces,  and  the  third  portion, 
the  remainder.  Then  moisten  the  second  part  of  the  powder 
with  the  first  portion  of  the  percolate,  pack  it  firmly  in  a  glass 
funnel  prepared  for  percolation,  and  pour  upon  it,  as  required, 
the  two  remaining  portions  of  percolate  in  the  order  in  which 
they  were  received.  Follow  these  with  twelve  fluidounces  of 
Diluted  Alcohol,  and  then  with  water,  as  before.  From  this  about 
two  pints  of  percolate  will  be  received,  and  should  be  separated 
into  three  portions,  as  before.  Moisten  the  third  part  of  the 
powder  with  the  first  portion  of  the  last  percolate,  pack  it  firmly 
in  a  glass  funnel  prepared  for  percolation,  and  pour  upon  it,  as 
required,  the  two  remaining  portions  of  the  last  percolate  in  the 
order  in  which  they  were  received.  Follow  these  with  twelve 
fluidounces  of  Diluted  Alcohol,  and  then  with  water,  as  before. 
From  this  twenty-four  fluidounces  of  percolate  should  be 
reserved.  The  first  sixteen  fluidounces  is  the  finished  Fluid  Ex- 
tract, and  the  remainder  is  to  be  preserved  in  a  bottle  for  use 
in  the  next  process  for  this  preparation,  when,  by  the  use  of  this 
instead  of  so  much  Alcohol,  the  pint  of  Fluid  Extract,  and  a 
